first double-stranded RNA binding motif of interleukin enhancer-binding factor 3 (ILF3) and similar proteins; ILF3 (also known as double-stranded RNA-binding protein 76 (DRBP76), M-phase phosphoprotein 4 (MPP4), nuclear factor associated with dsRNA (NFAR), nuclear factor of activated T-cells 90 kDa (NF-AT-90), or translational control protein 80 (TCP80)) is an RNA-binding protein that plays an essential role in the biogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. ILF3 contains an N-terminal DZF domain and two double-stranded RNA binding motifs (DSRMs). This model describes the first motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2033622732 399 PPQAMNALMRLNQLKPGLQYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDMGLPTG 470
Cdd:cd19910     2 PPQAMNALMRLNQLKPGLQYKLISQTGPVHAPVFTMSVEVDGKTFEASGPSKKTAKLHVAVKVLQDMGLPTG 73

DZF domain; The function of this domain is unknown. It is often found associated with pfam00098 or pfam00035. This domain has been predicted to belong to the nucleotidyltransferase superfamily.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033622732  94 RVGLVAKGLLLKGDLDLELVLLCKEKPTTALLDKVADNLAIQLAAVTEDkyEILQSVDdAAIVIKNTKEPPLSLTIHLTS 173
Cdd:pfam07528   1 QVGSFKKGTLLKGSNVADVVVILKTLPTTELVDALAKKVEEDLKTSMKT--EILQSVE-ALIVIKNTKEPPLELGFHITS 77

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033622732 174 PVVREEMEKVLAGETLSVNDPPDVLDRQKCLAALASLRHAKWFQARANGLKSCVIVIRVLRDLCTRVPTWGPLRGWPLEL 253
Cdd:pfam07528  78 PVAKVRMLIATLPENLRKLEPEDHLDRKKMQSHLASIRHTRWFEENAHHLKSIKVLIRVLKDLCRRFDTFGPLSGWPLDL 157

                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033622732 254 LCEKSIG--TANRPMGAGEALRRVLECLASGIVMPDGSGIYDPCEKEATDAIGHLDRQQREDITQSAQHALRLAAFGQLH 331
Cdd:pfam07528 158 LAHKAIMnnPSRQALPAGEAFRRVFELLASGIFLPGSAGITDPCEKGHTRVHTHLTLQQQDDCCMTAQTLLRVLAHGGYK 237

                         250
                  ....*....|.
gi 2033622732 332 KVLGMDPLPSK 342
Cdd:pfam07528 238 HILGMDGNTSV 248

second double-stranded RNA binding motif of interleukin enhancer-binding factor 3 (ILF3) and similar proteins; ILF3 (also known as double-stranded RNA-binding protein 76 (DRBP76), M-phase phosphoprotein 4 (MPP4), nuclear factor associated with dsRNA (NFAR), nuclear factor of activated T-cells 90 kDa (NF-AT-90), or translational control protein 80 (TCP80)) is an RNA-binding protein that plays an essential role in the biogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. ILF3 contains an N-terminal DZF domain and two double-stranded RNA binding motifs (DSRMs). This model describes the second motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2033622732 524 ILTKHGKNPVMELNEKRRGLKYELISETGGSHDKRFVMEVEVDGQKFQGAGSNKKVAKAYAALAALEKLFPD 595
Cdd:cd19912     1 ILTKHGKNPVMELNEKRRGLKYELISETGGSHDKRFVMEVEVDGQKFQGAGSNKKVAKAYAALAALEKLFPD 72

Double-stranded RNA binding motif;

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 2033622732  530 KNPVMELNEKRR-GLKYELISETGGSHDKRFVMEVEVDG-QKFQGAGSN 576
Cdd:smart00358   2 KSLLQELAQKRKlPPEYELVKEEGPDHAPRFTVTVKVGGkRTGEGEGSS 50

dsRNA-specific ribonuclease [Transcription];

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|..
gi 2033622732 413 KPGLQYKLVSQTGPVHAPIFTMSVEVDGNSF-EASGPSKKTA 453
Cdd:COG0571   172 LPLPEYEVVEEEGPDHAKTFTVEVLVGGKVLgEGTGRSKKEA 213

dsRNA-specific ribonuclease [Transcription];

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 2033622732 527 KHGKNPVMELNEK--RRGL---KYELISETGGSHDKRFVMEVEVDGQKF-QGAGSN 576
Cdd:COG0571   154 GAGKDYKTALQEWlqARGLplpEYEVVEEEGPDHAKTFTVEVLVGGKVLgEGTGRS 209

seadornavirus double-stranded RNA-binding protein; This protein family occurs in the seadornavirus virus group, with an N-terminal domain for binding double-stranded RNA, is designated VP12 in Banna virus, VP8 in Kadipiro virus, and VP11 in Liao ning virus.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 2033622732 418 YKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDM 465
Cdd:TIGR04238  20 YEKVGKEGPDHAPTFTIKLTANDIEVIEAASSKKQAEKLAAATIYEDM 67

DZF domain; The function of this domain is unknown. It is often found associated with pfam00098 or pfam00035. This domain has been predicted to belong to the nucleotidyltransferase superfamily.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033622732  94 RVGLVAKGLLLKGDLDLELVLLCKEKPTTALLDKVADNLAIQLAAVTEDkyEILQSVDdAAIVIKNTKEPPLSLTIHLTS 173
Cdd:pfam07528   1 QVGSFKKGTLLKGSNVADVVVILKTLPTTELVDALAKKVEEDLKTSMKT--EILQSVE-ALIVIKNTKEPPLELGFHITS 77

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033622732 174 PVVREEMEKVLAGETLSVNDPPDVLDRQKCLAALASLRHAKWFQARANGLKSCVIVIRVLRDLCTRVPTWGPLRGWPLEL 253
Cdd:pfam07528  78 PVAKVRMLIATLPENLRKLEPEDHLDRKKMQSHLASIRHTRWFEENAHHLKSIKVLIRVLKDLCRRFDTFGPLSGWPLDL 157

                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033622732 254 LCEKSIG--TANRPMGAGEALRRVLECLASGIVMPDGSGIYDPCEKEATDAIGHLDRQQREDITQSAQHALRLAAFGQLH 331
Cdd:pfam07528 158 LAHKAIMnnPSRQALPAGEAFRRVFELLASGIFLPGSAGITDPCEKGHTRVHTHLTLQQQDDCCMTAQTLLRVLAHGGYK 237

                         250
                  ....*....|.
gi 2033622732 332 KVLGMDPLPSK 342
Cdd:pfam07528 238 HILGMDGNTSV 248

second double-stranded RNA binding motif of interleukin enhancer-binding factor 3 (ILF3) and similar proteins; ILF3 (also known as double-stranded RNA-binding protein 76 (DRBP76), M-phase phosphoprotein 4 (MPP4), nuclear factor associated with dsRNA (NFAR), nuclear factor of activated T-cells 90 kDa (NF-AT-90), or translational control protein 80 (TCP80)) is an RNA-binding protein that plays an essential role in the biogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. ILF3 contains an N-terminal DZF domain and two double-stranded RNA binding motifs (DSRMs). This model describes the second motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2033622732 524 ILTKHGKNPVMELNEKRRGLKYELISETGGSHDKRFVMEVEVDGQKFQGAGSNKKVAKAYAALAALEKLFPD 595
Cdd:cd19912     1 ILTKHGKNPVMELNEKRRGLKYELISETGGSHDKRFVMEVEVDGQKFQGAGSNKKVAKAYAALAALEKLFPD 72

first double-stranded RNA binding motif of STRBP, ILF3 and similar proteins; This family includes spermatid perinuclear RNA-binding protein (STRBP) and interleukin enhancer-binding factor 3 (ILF3). STRBP is a double-stranded DNA and RNA binding protein that is involved in spermatogenesis and sperm function. It plays a role in regulation of cell growth. ILF3 (also known as double-stranded RNA-binding protein 76 (DRBP76), M-phase phosphoprotein 4 (MPP4), nuclear factor associated with dsRNA (NFAR), nuclear factor of activated T-cells 90 kDa (NF-AT-90), or translational control protein 80 (TCP80)) is an RNA-binding protein that plays an essential role in the biogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. Members of this STRBP/ILF3 group contain an N-terminal DZF domain and two double-stranded RNA binding motifs (DSRMs). This model describes the first motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 2033622732 403 MNALMRLNQLKPGLQYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDM 465
Cdd:cd19894     1 MNALMRLNQLRPGLQYKLASQTGPVHAPQFTMSVEVDGVTYEASGPSKKTAKLHVAVKVLQAM 63

first double-stranded RNA binding motif of STRBP, ILF3, RED1, RED2 and similar proteins; This family includes spermatid perinuclear RNA-binding protein (STRBP) and interleukin enhancer-binding factor 3 (ILF3), as well as two RNA-editing deaminases, RED1 and RED2. STRBP is a double-stranded DNA and RNA binding protein that is involved in spermatogenesis and sperm function. It plays a role in regulation of cell growth. ILF3 (also known as double-stranded RNA-binding protein 76 (DRBP76), M-phase phosphoprotein 4 (MPP4), nuclear factor associated with dsRNA (NFAR), nuclear factor of activated T-cells 90 kDa (NF-AT-90), or translational control protein 80 (TCP80)) is an RNA-binding protein that plays an essential role in the biogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. RED1 (EC 3.5.4.37; also called double-stranded RNA-specific editase 1, RNA-editing enzyme 1, dsRNA adenosine deaminase, ADARB1, ADAR2, or DRADA2) catalyzes the hydrolytic deamination of adenosine to inosine in double-stranded RNA (dsRNA), referred to as A-to-I RNA editing. RED2 (also called double-stranded RNA-specific editase B2, RNA-dependent adenosine deaminase 3, RNA-editing enzyme 2, dsRNA adenosine deaminase B2, ADAR3, or ADARB2) prevents the binding of other ADAR enzymes to targets in vitro, and decreases the efficiency of these enzymes. It is capable of binding to dsRNA, but also to ssRNA. RED2 lacks editing activity for currently known substrate RNAs. Members of this group contain two double-stranded RNA binding motifs (DSRMs). This model describes the first motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 2033622732 403 MNALMRLNQLKPGLQYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDM 465
Cdd:cd19865     1 KNALMQLNELRPGLQYKLTSQTGPVHAPVFTMSVEVNGQTFEGTGRSKKKAKLEAAEKALRSF 63

second double-stranded RNA binding motif of STRBP, ILF3, RED1, RED2 and similar proteins; This family includes spermatid perinuclear RNA-binding protein (STRBP) and interleukin enhancer-binding factor 3 (ILF3), as well as two RNA-editing deaminases, RED1 and RED2. STRBP is a double-stranded DNA and RNA binding protein that is involved in spermatogenesis and sperm function. It plays a role in regulation of cell growth. ILF3 (also known as double-stranded RNA-binding protein 76 (DRBP76), M-phase phosphoprotein 4 (MPP4), nuclear factor associated with dsRNA (NFAR), nuclear factor of activated T-cells 90 kDa (NF-AT-90), or translational control protein 80 (TCP80)) is an RNA-binding protein that plays an essential role in the biogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. RED1 (EC 3.5.4.37; also called double-stranded RNA-specific editase 1, RNA-editing enzyme 1, dsRNA adenosine deaminase, ADARB1, ADAR2, or DRADA2) catalyzes the hydrolytic deamination of adenosine to inosine in double-stranded RNA (dsRNA), referred to as A-to-I RNA editing. RED2 (also called double-stranded RNA-specific editase B2, RNA-dependent adenosine deaminase 3, RNA-editing enzyme 2, dsRNA adenosine deaminase B2, ADAR3, or ADARB2) prevents the binding of other ADAR enzymes to targets in vitro, and decreases the efficiency of these enzymes. It is capable of binding to dsRNA but also to ssRNA. RED2 lacks editing activity for currently known substrate RNAs. Members of this group contain two double-stranded RNA binding motifs (DSRMs). This model describes the second motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 2033622732 530 KNPVMELNEKRRGLKYELISETGGSHDKRFVMEVEVDGQKFQGAGSN 576
Cdd:cd19866     1 KNPVMLLNELRPGLKYKCLSESGESHAKSFVMSVTVDGQTFEGTGRS 47

second double-stranded RNA binding motif of spermatid perinuclear RNA-binding protein (STRBP) and similar proteins; STRBP is a double-stranded DNA and RNA binding protein that is involved in spermatogenesis and sperm function. It plays a role in regulation of cell growth. STRBP contains an N-terminal DZF domain and two double-stranded RNA binding motifs (DSRMs). This model describes the second motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*..
gi 2033622732 530 KNPVMELNEKRRGLKYELISETGGSHDKRFVMEVEVDGQKFQGAGSN 576
Cdd:cd19911     1 KNPVMELNEKRRGLKYELISETGGSHDKRFVMEVEVDGQKFRGAGPN 47

second double-stranded RNA binding motif of STRBP, ILF3, RED1, RED2 and similar proteins; This family includes spermatid perinuclear RNA-binding protein (STRBP) and interleukin enhancer-binding factor 3 (ILF3), as well as two RNA-editing deaminases, RED1 and RED2. STRBP is a double-stranded DNA and RNA binding protein that is involved in spermatogenesis and sperm function. It plays a role in regulation of cell growth. ILF3 (also known as double-stranded RNA-binding protein 76 (DRBP76), M-phase phosphoprotein 4 (MPP4), nuclear factor associated with dsRNA (NFAR), nuclear factor of activated T-cells 90 kDa (NF-AT-90), or translational control protein 80 (TCP80)) is an RNA-binding protein that plays an essential role in the biogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. RED1 (EC 3.5.4.37; also called double-stranded RNA-specific editase 1, RNA-editing enzyme 1, dsRNA adenosine deaminase, ADARB1, ADAR2, or DRADA2) catalyzes the hydrolytic deamination of adenosine to inosine in double-stranded RNA (dsRNA), referred to as A-to-I RNA editing. RED2 (also called double-stranded RNA-specific editase B2, RNA-dependent adenosine deaminase 3, RNA-editing enzyme 2, dsRNA adenosine deaminase B2, ADAR3, or ADARB2) prevents the binding of other ADAR enzymes to targets in vitro, and decreases the efficiency of these enzymes. It is capable of binding to dsRNA but also to ssRNA. RED2 lacks editing activity for currently known substrate RNAs. Members of this group contain two double-stranded RNA binding motifs (DSRMs). This model describes the second motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2033622732 404 NALMRLNQLKPGLQYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDM 465
Cdd:cd19866     2 NPVMLLNELRPGLKYKCLSESGESHAKSFVMSVTVDGQTFEGTGRSKKLAKAAAAQAALAKL 63

Double-stranded RNA binding motif;

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 2033622732  402 AMNALMRLNQ-LKPGLQYKLVSQTGPVHAPIFTMSVEVDGNS-FEASGPSKKTAKLHVAVKVLQDMG 466
Cdd:smart00358   1 PKSLLQELAQkRKLPPEYELVKEEGPDHAPRFTVTVKVGGKRtGEGEGSSKKEAKQRAAEAALRSLK 67

second double-stranded RNA binding motif of STRBP, ILF3 and similar proteins; This family includes spermatid perinuclear RNA-binding protein (STRBP) and interleukin enhancer-binding factor 3 (ILF3). STRBP is a double-stranded DNA and RNA binding protein that is involved in spermatogenesis and sperm function. It plays a role in regulation of cell growth. ILF3 (also known as double-stranded RNA-binding protein 76 (DRBP76), M-phase phosphoprotein 4 (MPP4), nuclear factor associated with dsRNA (NFAR), nuclear factor of activated T-cells 90 kDa (NF-AT-90), or translational control protein 80 (TCP80)) is an RNA-binding protein that plays an essential role in the biogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. Members of this STRBP/ILF3 group contain an N-terminal DZF domain and two double-stranded RNA binding motifs (DSRMs). This model describes the second motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2033622732 404 NALMRLNQLKPGLQYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDM 465
Cdd:cd19897     2 NPVMELNEKRRGLKYELISETGGSHDKRFVMEVEVDGQKFQGAGSNKKVAKANAALAALEKL 63

second double-stranded RNA binding motif of interleukin enhancer-binding factor 3 (ILF3) and similar proteins; ILF3 (also known as double-stranded RNA-binding protein 76 (DRBP76), M-phase phosphoprotein 4 (MPP4), nuclear factor associated with dsRNA (NFAR), nuclear factor of activated T-cells 90 kDa (NF-AT-90), or translational control protein 80 (TCP80)) is an RNA-binding protein that plays an essential role in the biogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. ILF3 contains an N-terminal DZF domain and two double-stranded RNA binding motifs (DSRMs). This model describes the second motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 2033622732 401 QAMNALMRLNQLKPGLQYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDM 465
Cdd:cd19912     5 HGKNPVMELNEKRRGLKYELISETGGSHDKRFVMEVEVDGQKFQGAGSNKKVAKAYAALAALEKL 69

double-stranded RNA binding motif (DSRM) superfamily; DSRM (also known as dsRBM) is a 65-70 amino acid domain that adopts an alpha-beta-beta-beta-alpha fold. It is not sequence specific, but highly specific for double-stranded RNAs (dsRNAs) of various origin and structure. The DSRM domains are found in a variety of proteins including dsRNA dependent protein kinase PKR, RNA helicases, Drosophila Staufen protein, E. coli RNase III, RNase H1, and dsRNA dependent adenosine deaminases. They are involved in numerous cellular mechanisms ranging from localization and transport of messenger RNAs, through maturation and degradation of RNAs, to viral response and signal transduction. Some members harbor tandem DSRMs that act in small RNA biogenesis.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 2033622732 411 QLKPGLQYKLVSQTGPvHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVL 462
Cdd:cd00048     7 NKWPPPEYETVEEGGP-HNPRFTCTVTVNGQTFEGEGKSKKEAKQAAAEKAL 57

Double-stranded RNA binding motif;

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 2033622732  530 KNPVMELNEKRR-GLKYELISETGGSHDKRFVMEVEVDG-QKFQGAGSN 576
Cdd:smart00358   2 KSLLQELAQKRKlPPEYELVKEEGPDHAPRFTVTVKVGGkRTGEGEGSS 50

second double-stranded RNA binding motif of RNA-editing deaminase 2 (RED2) and similar proteins; RED2 (also known as double-stranded RNA-specific editase B2, RNA-dependent adenosine deaminase 3, RNA-editing enzyme 2, dsRNA adenosine deaminase B2, ADAR3, or ADARB2) prevents the binding of other ADAR enzymes to targets in vitro, and decreases the efficiency of these enzymes. It is capable of binding to dsRNA but also to ssRNA. RED2 contains two double-stranded RNA binding motifs (DSRMs) and a C-terminal RNA-specific adenosine-deaminase (editase) domain. This model describes the second DSRM. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure. RED2 lacks editing activity for currently known substrate RNAs, and may have an inactive editase domain.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*.
gi 2033622732 530 KNPVMELNEKRRGLKYELISETGGS-HDKRFVMEVEVDGQKFQGAG 574
Cdd:cd19899     7 KNPVVLLNELRPGLRYVCLSETAEKqHIKSFVMAVRVDGRTFEGSG 52

first double-stranded RNA binding motif of protein activator of the interferon-induced protein kinase (PRKRA) and similar proteins; This family includes protein activator of the interferon-induced protein kinase (PRKRA) and the RISC-loading complex subunit TARBP2. PRKRA (also known as interferon-inducible double-stranded RNA-dependent protein kinase activator A, PKR-associated protein X (RAX), PKR-associating protein X, protein kinase, interferon-inducible double-stranded RNA-dependent activator, PACT, or HSD14) is a cellular activator for double-stranded RNA-dependent protein kinase during stress signaling. TARBP2 (also called TAR RNA-binding protein 2, or trans-activation-responsive RNA-binding protein (TRBP)), participates in the formation of the RNA-induced silencing complex (RISC). It is part of the RISC-loading complex (RLC), together with dicer1 and eif2c2/ago2, and is required to process precursor miRNAs. This family also includes Drosophila melanogaster Loquacious and similar proteins. Loquacious (Loqs) is a double-stranded RNA-binding domain (dsRBD) protein, a homolog of human TAR RNA binding protein (TRBP) that is a protein first identified as binding the HIV trans-activator RNA (TAR). Loqs interacts with Dicer1 (dmDcr1) to facilitate miRNA processing. PRKRA family proteins contain three double-stranded RNA binding motifs (DSRMs). This model describes the first motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*.
gi 2033622732 417 QYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKlHVAVKVL 462
Cdd:cd19862    19 KYELISSEGAVHEPTFTFRVTVGDITATGSGTSKKKAK-HAAAENA 63

first double-stranded RNA binding motif of double-stranded RNA-binding protein Staufen homolog 2 (Staufen 2) and similar proteins; Staufen 2 is an RNA-binding protein required for the microtubule-dependent transport of neuronal RNA from the cell body to the dendrite. Staufen 2 contains five double-stranded RNA binding motifs (DSRMs). This model describes the first motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 2033622732 403 MNALMRLNQLKPglQYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVL 462
Cdd:cd19880    11 VNELARFNRIQP--QYKLLNERGPAHAKIFTVQLTLGEQTWEAEGSSIKKAQHAAASKAL 68

first double-stranded RNA binding motif of double-stranded RNA-binding protein Staufen homolog 1 (Staufen 1) and similar proteins; Staufen 1 may play a role in specific positioning of mRNAs at given sites in the cell by cross-linking cytoskeletal and RNA components, and in stimulating their translation at the site. It binds double-stranded RNA (regardless of the sequence) and tubulin. Staufen 1 contains five double-stranded RNA binding motifs (DSRMs). This model describes the first motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 2033622732 399 PPQAMNALMRLNQLKPglQYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVL 462
Cdd:cd19879     5 PMCLVNELARFNKIQP--EYKLLSEQGPAHSKVFTVQLTLGDQHWEAEGTSIKKAQHAAAAKAL 66

first double-stranded RNA binding motif of eukaryotic translation initiation factor 2-alpha kinase 2 (EIF2AK2) and similar proteins; EIF2AK2 (EC 2.7.11.1/EC 2.7.10.2; also known as interferon-induced, double-stranded RNA-activated protein kinase, eIF-2A protein kinase 2, interferon-inducible RNA-dependent protein kinase, P1/eIF-2A protein kinase, protein kinase RNA-activated (PKR), protein kinase R, tyrosine-protein kinase EIF2AK2, or p68 kinase) acts as an IFN-induced dsRNA-dependent serine/threonine-protein kinase which plays a key role in the innate immune response to viral infection and is also involved in the regulation of signal transduction, apoptosis, cell proliferation and differentiation. EIF2AK2 proteins contain two to three double-stranded RNA binding motifs (DSRMs). This model describes the first motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 2033622732 404 NALMRLNQ----LKPGLQYKLVSQTGPVHAPIFTMSVEVDGNSF-EASGPSKKTAKLHVAVKVLQDM 465
Cdd:cd19903     2 NYMGKLNEycqkQKVVLDYVEVPTSGPSHDPRFTFQVVIDGKEYpEGEGKSKKEAKQAAAKLALEIL 68

double-stranded RNA binding motif of ribonuclease III (RNase III) and similar proteins; RNase III (EC 3.1.26.3; also known as ribonuclease 3) digests double-stranded RNA formed within single-strand substrates, but not RNA-DNA hybrids. It is involved in the processing of rRNA precursors, viral transcripts, some mRNAs, and at least 1 tRNA (metY, a minor form of tRNA-init-Met). It cleaves the 30S primary rRNA transcript to yield the immediate precursors to the 16S and 23S rRNAs. The cleavage can occur in assembled 30S, 50S, and even 70S subunits and is influenced by the presence of ribosomal proteins. The RNase III family also includes the mitochondrion-specific ribosomal protein mL44 subfamily, which is composed of mitochondrial 54S ribosomal protein L3 (MRPL3) and mitochondrial 39S ribosomal protein L44 (MRPL44). Members of this family contain an RNase III domain and a C-terminal double-stranded RNA binding motif (DSRM). DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 2033622732 417 QYKLVSQTGPVHAPIFTMSVEVDGNSF-EASGPSKKTAKLHVAVKVLQ 463
Cdd:cd10845    20 EYELVEEEGPDHNKTFTVEVKVNGKVIgEGTGRSKKEAEQAAAKAALE 67

dsRNA-specific ribonuclease [Transcription];

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|..
gi 2033622732 413 KPGLQYKLVSQTGPVHAPIFTMSVEVDGNSF-EASGPSKKTA 453
Cdd:COG0571   172 LPLPEYEVVEEEGPDHAKTFTVEVLVGGKVLgEGTGRSKKEA 213

double-stranded RNA binding motif of protein SON and similar proteins; Protein SON (also known as Bax antagonist selected in saccharomyces 1 (BASS1), negative regulatory element-binding protein (NRE-binding protein), or protein DBP-5, or SON3) is an RNA-binding protein which acts as an mRNA splicing cofactor by promoting efficient splicing of transcripts that possess weak splice sites. It specifically promotes splicing of many cell-cycle and DNA-repair transcripts that possess weak splice sites, such as TUBG1, KATNB1, TUBGCP2, AURKB, PCNT, AKT1, RAD23A, and FANCG. Members of this group contain a double-stranded RNA binding motif (DSRM) at the C-terminus. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 2033622732 529 GKNPV---MELNEKRR--GLKYELISETGGSHDKRFVMEVEVDGQKFQ 571
Cdd:cd19870     1 GKHPVsalMELCNKRKwgPPEFRLVEESGPPHRKHFLFKVVVNGVEYQ 48

fourth double-stranded RNA binding motif of Drosophila melanogaster maternal effect protein Staufen and similar proteins; Staufen is a double-stranded RNA binding protein required both for the localization of maternal determinants to the posterior pole of the egg, oskar (osk) RNA, and for correct localization to the anterior pole, anchoring bicoid (bcd) RNA. The family also includes two Staufen homologs from vertebrates, Staufen 1 and Staufen 2. They are present in distinct ribonucleoprotein complexes and associate with different mRNAs. Staufen 1 may play a role in specific positioning of mRNAs at given sites in the cell by cross-linking cytoskeletal and RNA components, and in stimulating their translation at the site. It binds double-stranded RNA (regardless of the sequence) and tubulin. Staufen 2 is an RNA-binding protein required for the microtubule-dependent transport of neuronal RNA from the cell body to the dendrite. Staufen proteins contain five double-stranded RNA binding motifs (DSRMs). This model describes the fourth motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*....
gi 2033622732 418 YKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDMG 466
Cdd:cd19860    20 YSLVAERGTPRRREFVMQVTVGDKTATGTGPNKKLAKRNAAEAMLELLG 68

second double-stranded RNA binding motif of double-stranded RNA-specific adenosine deaminase (DRADA) and similar proteins; DRADA (EC 3.5.4.37; also known as 136 kDa double-stranded RNA-binding protein (p136), interferon-inducible protein 4 (IFI-4), K88DSRBP, ADAR1, G1P1, or ADAR) catalyzes the hydrolytic deamination of adenosine to inosine in double-stranded RNA (dsRNA), referred to as A-to-I RNA editing. Vertebrate DRADA contains three double-stranded RNA binding motifs (DSRMs). This model describes the second motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 2033622732 417 QYKLVSQTGPVHAPIFTMSVEVDGNSF-EASGPSKKTAK---LHVAVKVL 462
Cdd:cd19914    19 EFQLLSQEGPPHDPKFTYCVKVGEQTFpSVVANSKKVAKqmaAEEAVKEL 68

first double-stranded RNA binding motif of protein activator of the interferon-induced protein kinase (PRKRA) and similar proteins; This family includes protein activator of the interferon-induced protein kinase (PRKRA) and the RISC-loading complex subunit TARBP2. PRKRA (also known as interferon-inducible double-stranded RNA-dependent protein kinase activator A, PKR-associated protein X (RAX), PKR-associating protein X, protein kinase, interferon-inducible double-stranded RNA-dependent activator, PACT, or HSD14) is a cellular activator for double-stranded RNA-dependent protein kinase during stress signaling. TARBP2 (also called TAR RNA-binding protein 2, or trans-activation-responsive RNA-binding protein (TRBP)), participates in the formation of the RNA-induced silencing complex (RISC). It is part of the RISC-loading complex (RLC), together with dicer1 and eif2c2/ago2, and is required to process precursor miRNAs. This family also includes Drosophila melanogaster Loquacious and similar proteins. Loquacious (Loqs) is a double-stranded RNA-binding domain (dsRBD) protein, a homolog of human TAR RNA binding protein (TRBP) that is a protein first identified as binding the HIV trans-activator RNA (TAR). Loqs interacts with Dicer1 (dmDcr1) to facilitate miRNA processing. PRKRA family proteins contain three double-stranded RNA binding motifs (DSRMs). This model describes the first motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 2033622732 530 KNPVMELNEK--RRGL--KYELISETGGSHDKRFVMEVEVDGQKFQGAGS 575
Cdd:cd19862     1 KTPISVLQELcaKRGItpKYELISSEGAVHEPTFTFRVTVGDITATGSGT 50

fourth double-stranded RNA binding motif of double-stranded RNA-binding protein Staufen homolog 1 (Staufen 1) and similar proteins; Staufen 1 may play a role in specific positioning of mRNAs at given sites in the cell by cross-linking cytoskeletal and RNA components, and in stimulating their translation at the site. It binds double-stranded RNA (regardless of the sequence) and tubulin. Staufen 1 contains five double-stranded RNA binding motifs (DSRMs). This model describes the fourth motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 2033622732 401 QAMNALMRLNQLKPGL-----QYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDMG 466
Cdd:cd19885     8 QGMNPISRLAQIQQAKkekepEYTLITERGLPRRREFVMQVKVGNQTAEGMGPNKKVAKRNAAEKMLELLG 78

first double-stranded RNA binding motif of double-stranded RNA-specific adenosine deaminase (DRADA); DRADA (EC 3.5.4.37; also known as 136 kDa double-stranded RNA-binding protein (p136), interferon-inducible protein 4 (IFI-4), K88DSRBP, ADAR1, G1P1, or ADAR) catalyzes the hydrolytic deamination of adenosine to inosine in double-stranded RNA (dsRNA), referred to as A-to-I RNA editing. Vertebrate DRADA contains three double-stranded RNA binding motifs (DSRMs). This model describes the first motif. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 2033622732 417 QYKLVSQTGPVHAPIFTMSVEVDGNSFE-ASGPSKKTAKLHVAVKVLQ 463
Cdd:cd19913    19 EFLLLEQSGPSHDPRFKFQAVIDGRRFPpAEASSKKVAKKDAAAIALK 66

double-stranded RNA binding motif of double-stranded RNA-specific adenosine deaminase (DRADA) and similar proteins; DRADA (EC 3.5.4.37; also known as 136 kDa double-stranded RNA-binding protein (p136), interferon-inducible protein 4 (IFI-4), K88DSRBP, ADAR1, G1P1, or ADAR) catalyzes the hydrolytic deamination of adenosine to inosine in double-stranded RNA (dsRNA), referred to as A-to-I RNA editing. DRADA family members contain at least one double-stranded RNA binding motifs (DSRM); vertebrate proteins contain three. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*
gi 2033622732 530 KNPV---MELNEKRR-GLKYELISETGGSHDKRFVMEVEVDGQKF 570
Cdd:cd19902     1 KNPVsalMEYAQSRGvTAEIEVLSQSGPPHNPRFKAAVFVGGRRF 45

double-stranded RNA binding motif of plant Dicer-like proteins; The family includes plant Dicer-like (DCL) proteins and other ribonuclease (RNase) III-like (RTL) proteins. DCLs are endoribonucleases involved in RNA-mediated post-transcriptional gene silencing (PTGS). They function in the microRNA (miRNA) biogenesis pathway by cleaving primary miRNAs (pri-miRNAs) and precursor miRNAs (pre-miRNAs). Family members contain a double-stranded RNA binding motif (DSRM) at the C-terminus. DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 2033622732 417 QYKLVSQTGPVHAPIFTMSVEV----DGNSFEASG---PSKKTAKLHVAVKVLQ 463
Cdd:cd19869    13 VYRCVEEEGPAHAKRFTYMVRVkipeRGWTIECEGepmRSKKRAKDSAALLLLE 66

double-stranded RNA binding motif of eukaryotic translation initiation factor 2-alpha kinase 2 (EIF2AK2) and similar proteins; The family includes EIF2AK2 and adenosine deaminase domain-containing proteins, ADAD1 and ADAD2. EIF2AK2 (EC 2.7.11.1/EC 2.7.10.2; also known as interferon-induced, double-stranded RNA-activated protein kinase, eIF-2A protein kinase 2, interferon-inducible RNA-dependent protein kinase, P1/eIF-2A protein kinase, protein kinase RNA-activated (PKR), protein kinase R, tyrosine-protein kinase EIF2AK2, or p68 kinase) acts as an IFN-induced dsRNA-dependent serine/threonine-protein kinase which plays a key role in the innate immune response to viral infection and is also involved in the regulation of signal transduction, apoptosis, cell proliferation and differentiation. ADAD1 (also called testis nuclear RNA-binding protein (TENR)) and ADAD2 (also called testis nuclear RNA-binding protein-like (TENRL)) are phylogenetically related to a family of adenosine deaminases involved in RNA editing. ADAD1 plays an essential function in spermatid morphogenesis. It may be involved in testis-specific nuclear post-transcriptional processes such as heterogeneous nuclear RNA (hnRNA) packaging, alternative splicing, or nuclear/cytoplasmic transport of mRNAs. ADAD2 is a double-stranded RNA binding protein with unclear biological function. Members of this group contains varying numbers of double-stranded RNA binding motifs (DSRMs). DSRM is not sequence specific, but highly specific for dsRNAs of various origin and structure.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 2033622732 530 KNPVMELNE----KRRGLKYElISETGGSHDKRFVMEVEVDGQKF-QGAGSNKKV 579
Cdd:cd19875     1 KNPVSALNEycqkRGLSLEFV-DVSVGPDHCPGFTASATIDGIVFaSATGTSKKE 54

seadornavirus double-stranded RNA-binding protein; This protein family occurs in the seadornavirus virus group, with an N-terminal domain for binding double-stranded RNA, is designated VP12 in Banna virus, VP8 in Kadipiro virus, and VP11 in Liao ning virus.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*...
gi 2033622732 418 YKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDM 465
Cdd:TIGR04238  20 YEKVGKEGPDHAPTFTIKLTANDIEVIEAASSKKQAEKLAAATIYEDM 67

double-stranded RNA binding motif (DSRM) superfamily; DSRM (also known as dsRBM) is a 65-70 amino acid domain that adopts an alpha-beta-beta-beta-alpha fold. It is not sequence specific, but highly specific for double-stranded RNAs (dsRNAs) of various origin and structure. The DSRM domains are found in a variety of proteins including dsRNA dependent protein kinase PKR, RNA helicases, Drosophila Staufen protein, E. coli RNase III, RNase H1, and dsRNA dependent adenosine deaminases. They are involved in numerous cellular mechanisms ranging from localization and transport of messenger RNAs, through maturation and degradation of RNAs, to viral response and signal transduction. Some members harbor tandem DSRMs that act in small RNA biogenesis.

                          10        20        30
                  ....*....|....*....|....*....|....*...
gi 2033622732 543 LKYELISEtGGSHDKRFVMEVEVDGQKFQGAGSNKKVA 580
Cdd:cd00048    12 PEYETVEE-GGPHNPRFTCTVTVNGQTFEGEGKSKKEA 48