ubiquitin-like (Ubl) domain found in AN1-type zinc finger protein 4 (ZFAND4) and similar proteins; ZFAND4, also termed AN1-type zinc finger and ubiquitin domain-containing protein-like 1 (ANUBL1), may function as an oncogene that promotes proliferation and regulates relevant tumor suppressor genes in gastric cancer, suggesting a role in gastric cancer initiation and progression. ZFAND4contains an N-terminal ubiquitin-like (Ubl) domain with a beta-grasp Ubl fold, a common structure involved in protein-protein interactions, as well as a C-terminal AN1-type zinc finger. Unlike ubiquitin polyproteins and most ubiquitin fusion proteins, the N-terminal Ubl domain of ZFAND4 does not undergo proteolytic processing.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 2024509983  28 MELFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLVLAMR 101
Cdd:cd01802     1 MELFIETLTGTAFELRVSPFETVASVKAKIQRLEGIPVSQQHLIWSGRELEDDYCLHDYNITDGSTLKLVLAMR 74

ubiquitin-like (Ubl) domain found in AN1-type zinc finger protein 4 (ZFAND4) and similar proteins; ZFAND4, also termed AN1-type zinc finger and ubiquitin domain-containing protein-like 1 (ANUBL1), may function as an oncogene that promotes proliferation and regulates relevant tumor suppressor genes in gastric cancer, suggesting a role in gastric cancer initiation and progression. ZFAND4contains an N-terminal ubiquitin-like (Ubl) domain with a beta-grasp Ubl fold, a common structure involved in protein-protein interactions, as well as a C-terminal AN1-type zinc finger. Unlike ubiquitin polyproteins and most ubiquitin fusion proteins, the N-terminal Ubl domain of ZFAND4 does not undergo proteolytic processing.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 2024509983  28 MELFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLVLAMR 101
Cdd:cd01802     1 MELFIETLTGTAFELRVSPFETVASVKAKIQRLEGIPVSQQHLIWSGRELEDDYCLHDYNITDGSTLKLVLAMR 74

Ubiquitin [Posttranslational modification, protein turnover, chaperones];

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 2024509983  28 MELFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLVL 98
Cdd:COG5272     1 MQIFVKTLTGKTITLEVEPNDTIEAVKAKIQDKEGIPPDQQRLIFAGKQLEDDRTLADYNIQKESTLHLVT 71

ubiquitin; Provisional

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 2024509983  28 MELFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLVLAMRGG 103
Cdd:PTZ00044    1 MQILIKTLTGKKQSFNFEPDNTVQQVKMALQEKEGIDVKQIRLIYSGKQMSDDLKLSDYKVVPGSTIHMVLQLRGG 76

ubiquitin-like (Ubl) domain found in AN1-type zinc finger protein 4 (ZFAND4) and similar proteins; ZFAND4, also termed AN1-type zinc finger and ubiquitin domain-containing protein-like 1 (ANUBL1), may function as an oncogene that promotes proliferation and regulates relevant tumor suppressor genes in gastric cancer, suggesting a role in gastric cancer initiation and progression. ZFAND4contains an N-terminal ubiquitin-like (Ubl) domain with a beta-grasp Ubl fold, a common structure involved in protein-protein interactions, as well as a C-terminal AN1-type zinc finger. Unlike ubiquitin polyproteins and most ubiquitin fusion proteins, the N-terminal Ubl domain of ZFAND4 does not undergo proteolytic processing.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 2024509983  28 MELFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLVLAMR 101
Cdd:cd01802     1 MELFIETLTGTAFELRVSPFETVASVKAKIQRLEGIPVSQQHLIWSGRELEDDYCLHDYNITDGSTLKLVLAMR 74

ubiquitin-like (Ubl) domain found in ubiquitin and ubiquitin-like Ubl proteins; Ubiquitin-like (Ubl) proteins have a similar ubiquitin (Ub) beta-grasp fold and attach to other proteins in a Ubl manner but with biochemically distinct roles. Ub and Ubl proteins conjugate and deconjugate via ligases and peptidases to covalently modify target polypeptides. Some Ubl domains have adaptor roles in Ub-signaling by mediating protein-protein interaction. Prokaryotic sulfur carrier proteins are Ub-related proteins that can be activated in an ATP-dependent manner. Polyubiquitination signals for a diverse set of cellular events via different isopeptide linkages formed between the C terminus of one ubiquitin (Ub) and the epsilon-amine of K6, K11, K27, K29, K33, K48, or K63 of a second Ub. One of these seven lysine residues (K27, Ub numbering) is conserved in this Ubl_ubiquitin_like family. K27-linked Ub chains are versatile and can be recognized by several downstream receptor proteins. K27 has roles beyond chain linkage, such as in Ubl NEDD8 (which contains many of the same lysines (K6, K11, K27, K33, K48) as Ub) where K27 has a role (other than conjugation) in the mechanism of protein neddylation.

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 2024509983  30 LFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLV 97
Cdd:cd17039     1 ITVKTLDGKTYTVEVDPDDTVADLKEKIEEKTGIPVEQQRLIYNGKELKDDKTLSDYGIKDGSTIHLV 68

ubiquitin-like (Ubl) domain found in neural precursor cell expressed developmentally down-regulated protein 8 (NEDD8) and similar proteins; NEDD8, also termed Neddylin, or RELATED TO UBIQUITIN (RUB/Rub1p) in plant and yeast, is a ubiquitin-like protein that conjugates to nuclear proteins in a manner analogous to ubiquitination and sentrinization. It modifies a family of molecular scaffold proteins called cullins that are responsible for assembling the ROC1/Rbx1 RING-based E3 ubiquitin ligases, of which several play a direct role in tumorigenesis. NEDD8 deamidation and its inhibition of Cullin-RING ubiquitin ligases (CRLs) activity are responsible for Cycle-inhibiting factor (Cif)/Cif homolog in Burkholderia pseudomallei (CHBP)-induced cytopathic effect. NEDD8 contains a single conserved ubiquitin-like (Ubl) domain with a beta-grasp Ubl fold, a common structure involved in protein-protein interactions. Polyubiquitination, signals for a diverse set of cellular events via different isopeptide linkages formed between the C terminus of one ubiquitin (Ub) and the epsilon-amine of K6, K11, K27, K29, K33, K48, or K63 of a second Ub. Ubl NEDD8, contains many of the same lysines (K6, K11, K27, K33, K48) as Ub, where K27 has an role (other than conjugation) in the mechanism of protein neddylation.

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2024509983  32 IETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLVLAMRGG 103
Cdd:cd01806     3 VKTLTGKEIEIDIEPTDKVERIKERVEEKEGIPPQQQRLIFSGKQMNDEKTAADYKIEGGSVLHLVLALRGG 74

Ubiquitin family; This family contains a number of ubiquitin-like proteins: SUMO (smt3 homolog), Nedd8, Elongin B, Rub1, and Parkin. A number of them are thought to carry a distinctive five-residue motif termed the proteasome-interacting motif (PIM), which may have a biologically significant role in protein delivery to proteasomes and recruitment of proteasomes to transcription sites.

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2024509983  30 LFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLVLAMR 101
Cdd:pfam00240   1 ITVKTLDGKKITLEVDPTDTVLELKEKIAEKEGVPPEQQRLIYSGKVLEDDQTLGEYGIEDGSTIHLVLRQR 72

ubiquitin-like (Ubl) domain found in ubiquitin-like proteins UBL4A and similar proteins; UBL4A, also termed GdX, is a ubiquitously expressed ubiquitin-like (Ubl) protein that forms a complex with partner proteins and participates in the protein processing through endoplasmic reticulum (ER), acting as a chaperone. As a key component of the BCL2-associated athanogene 6 (BAG6) chaperone complex, UBL4A plays a role in mediating DNA damage signaling and cell death. UBL4A also regulates insulin-induced Akt plasma membrane translocation through promotion of Arp2/3-dependent actin branching. Moreover, UBL4A specifically stabilizes the TC45/STAT3 association and promotes dephosphorylation of STAT3 to repress tumorigenesis. UBL4B is testis-specific, and encoded by an X-derived retrogene Ubl4b, which is specifically expressed in post-meiotic germ cells in mammals. As a germ cell-specific cytoplasmic protein, UBL4B is not present in somatic cells. Moreover, UBL4B is present in elongated spermatids, but not in spermatocytes and round spermatids, suggesting its function is restricted to late spermiogenesis. The function of UBL4A may be compensated by either UBL4B or other Ubl proteins in normal conditions. Both UBL4A and UBL4B contain a conserved Ubl domain with a beta-grasp Ubl fold, a common structure involved in protein-protein interactions.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2024509983  28 MELFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLV 97
Cdd:cd01807     1 MLITVKILQGKECTIEVSPTESVLTVKQLVAEQLNVPVSQQRLVFKGKTLADEHSLSDYSIGPGSKIHLV 70

ubiquitin-like (Ubl) domain found in the Rad23 protein family; The Rad23 family includes the yeast nucleotide excision repair (NER) proteins, Rad23p (in Saccharomyces cerevisiae) and Rhp23p (in Schizosaccharomyces pombe), their mammalian orthologs HR23A and HR23B, and putative DNA repair proteins from plants. Rad23 proteins play dual roles in DNA repair as well as in proteosomal degradation. They have affinity for both the proteasome and ubiquitinylated proteins and participate in translocating polyubiquitinated proteins to the proteasome. Rad23 proteins carry an ubiquitin-like (Ubl) domain with a beta-grasp Ubl fold, and two ubiquitin-associated (UBA) domains, as well as a xeroderma pigmentosum group C (XPC) protein-binding domain. The Ubl domain is responsible for the binding to proteasome. The UBA domains are important for binding of ubiquitin (Ub) or multi-ubiquitinated substrates, which suggests Rad23 proteins might be involved in certain pathways of Ub metabolism. Both the Ubl domain and the XPC-binding domain are necessary for efficient NER function of Rad23 proteins.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 2024509983  28 MELFIETLTGTCFELRVSPFETVISVKAKIQRLEG-IPISQQHLIWNNVELKDDYCLNDYNISE 90
Cdd:cd01805     1 MKITFKTLQQQTFEIEVEPSDTVLELKEKIEQEQGdFPASGQKLIYSGKVLKDDKTLSEYNIKE 64

ubiquitin-like (Ubl) domain found in Arabidopsis thaliana ubiquitin-protein ligase 5 (AtUPL5) and similar proteins; Arabidopsis thaliana AtUPL5, also termed HECT-type E3 ubiquitin transferase UPL5, is an E3 ubiquitin-protein ligase that contains a ubiquitin-like domain (Ubl), a C-type lectin-binding domain, a leucine zipper and a HECT domain. HECT domain containing-ubiquitin-protein ligases have more than one member in different genomes, these proteins have been classified into four sub-families (UPL1/2, UPL3/4, UPL5 and UPL6/7). AtUPL5 fUPL5 regulates leaf senescence in Arabidopsis through degradation of the transcription factor WRKY53.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 2024509983  29 ELFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLV 97
Cdd:cd16107     1 QIFVRTYCGKTIVLHAKASDTVESLHQQIEARTGIPSLEQRLIFGGRQLQHSQSLESCKMENDATLFLV 69

ubiquitin-like (Ubl) domain found in Saccharomyces cerevisiae proteasome interacting protein Dsk2p and similar proteins; The family contains several fungal multiubiquitin receptors, including Saccharomyces cerevisiae Dsk2p and Schizosaccharomyces pombe Dph1p, both of which have been characterized as shuttle proteins transporting ubiquitinated substrates destined for degradation from the E3 ligase to the 26S proteasome. They interact with the proteasome through their N-terminal ubiquitin-like domain (Ubl) and with ubiquitin (Ub) through their C-terminal Ub-associated domain (UBA). S. cerevisiae Dsk2p is a nuclear-enriched protein that may involve in the ubiquitin-proteasome proteolytic pathway through interacting with K48-linked polyubiquitin and the proteasome. Moreover, it has been implicated in spindle pole duplication through assisting in Cdc31 assembly into the new spindle pole body (SPB). S. pombe Dph1p is an ubiquitin (Ub0 receptor working in concert with the class V myosin, Myo52, to target the degradation of the S. pombe CLIP-170 homolog, Tip1. It also can protect Ub chains against disassembly by deubiquitinating enzymes.

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 2024509983  32 IETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLV 97
Cdd:cd16106     5 VKCSNGKKFTVEVEPDATVLELKELIAEKSDIPAEQQRLIYKGKILKDEETLSSYKIQDGHTVHLV 70

ubiquitin-like (Ubl) domain 1 found in interferon-stimulated gene 15 (ISG15) and similar proteins; ISG15, also termed interferon-induced 15 kDa protein, or interferon-induced 17 kDa protein (IP17), or ubiquitin cross-reactive protein (UCRP), is an antiviral interferon-induced ubiquitin-like protein (Ubl) that upon viral infection, modifies cellular and viral proteins by mechanisms similar to ubiquitination. Although ISG15 has properties similar to those of other Ubl molecules, it is a unique member of the Ubl superfamily, whose expression and conjugation to target proteins are tightly regulated by specific signaling pathways, indicating it may have specialized functions in the immune system. ISG15 contains two tandem Ubl domains with a beta-grasp Ubl fold. This family corresponds to the first Ubl domain.

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 2024509983  28 MELFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLI--WNNVELKDDYCLNDYNISEGCTLKLVL 98
Cdd:cd01792     1 WDLTVKMLTGNEFQVSVSPSMTVSELKAQITQKIGVPAFQQRLAvqPSGVELQDGVRLASQGLGPSSTVLLVV 73

ubiquitin-like (Ubl) domain 2 found in 2'-5'-oligoadenylate synthase-like protein (OASL) and similar proteins; OASL, also termed 2'-5'-OAS-related protein (2'-5'-OAS-RP), or 59 kDa 2'-5'-oligoadenylate synthase-like protein, or thyroid receptor-interacting protein 14, or TR-interacting protein 14 (TRIP-14), or p59 OASL (p59OASL), is an interferon (IFN)-induced antiviral protein that plays an important role in the IFNs-mediated antiviral signaling pathway. It inhibits respiratory syncytial virus replication and is targeted by the viral nonstructural protein 1 (NS1). It also displays antiviral activity against encephalomyocarditis virus (EMCV) and hepatitis C virus (HCV) via an alternative antiviral pathway independent of RNase L. Moreover, OASL does not have 2'-5'-OAS activity, but can bind double-stranded RNA (dsRNA) to enhance RIG-I signaling. OASL belongs to the 2'-5' oligoadenylate synthase (OAS) family. While each member of this family has a conserved N-terminal OAS catalytic domain, only OASL has two tandem C-terminal ubiquitin-like (Ubl) repeats, which are required for its antiviral activity. This family corresponds to the second Ubl domain.

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2024509983  27 TMELFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISEGCTLKLVL 98
Cdd:cd16103     1 EIQIFVKFPDGTSKPYAINPEDTILDLKEKIEEQGGPPVEDQILLFQGQELRDKKSLKYYGIKDGDTLQLSL 72

ubiquitin-like (Ubl) domain found in ubiquitin-specific-processing protease 48 (USP48) and similar proteins; USP48, also termed USP31, or deubiquitinating enzyme 48, or ubiquitin thioesterase 48, or ubiquitin carboxyl-terminal hydrolase 48, belongs to the ubiquitin specific protease (USP) family that is one of at least seven deubiquitylating enzyme (DUB) families capable of deconjugating ubiquitin (Ub)and ubiquitin-like (Ubl) adducts. While the USP proteins have a conserved catalytic core domain, USP48 differs in its domain architecture. It contains an N-terminal USP domain, three DUSP (domain present in ubiquitin-specific protease) domains, and a C-terminal Ubl domain with a beta-grasp Ubl fold, a common structure involved in protein-protein interactions. USP48 is a deubiquitinating enzyme that interacts with TNF receptor-associated factor 2 (TRAF2) and has been implicated in activation of nuclear factor-kappaB (NF-kappaB). Moreover, as a nuclear deubiquitinase regulated by casein kinase 2 (CK2), USP48 controls the ubiquitin/proteasome-system (UPS)-dependent turnover of activated NF-kappaB/RelA in the nucleus together with the COP9 signalosome, suggesting a role of USP48 in a timely control of immune responses.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 2024509983  36 TGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDD-YCLNDYNISEGCTLKLV 97
Cdd:cd01795     4 RGERKSLTVSSTTTLKELKLQIMEKFSVAPFDQHLYFNGRELTDDsATLADLGILPGDVLYLK 66

ubiquitin-like (Ubl) domain found in UV excision repair protein RAD23 homolog B (HR23B); HR23B, also termed xeroderma pigmentosum group C (XPC) repair-complementing complex 58 kDa protein (p58), is tightly complexed with XPC protein to form the XPC-HR23B complex. Although it displays a high affinity for both single- and double-stranded DNA, the XPC-HR23B complex functions as a global genome repair (GGR)-specific repair factor that is specifically involved in global genome but not transcription-coupled nucleotide excision repair (NER). HR23B also interacts specifically with S5a subunit of the human 26S proteasome, and plays an important role in shuttling ubiquitinated cargo proteins to the proteasome. HR23B contains an N-terminal ubiquitin-like (Ubl) domain that binds proteasomes and two C-terminal ubiquitin-associated (UBA) domains that bind ubiquitin or multi-ubiquitinated substrates. In addition, it has a XPC protein-binding domain that might be necessary for its efficient NER function.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 2024509983  28 MELFIETLTGTCFELRVSPFETVISVKAKIQRLEG---IPISQQHLIWNNVELKDDYCLNDYNISE 90
Cdd:cd16126     1 MQITLKTLQQQTFKIDIDPEETVKALKEKIESEKGkdaFPVAGQKLIYAGKILNDDTALKEYKIDE 66

ubiquitin-like (Ubl) domain found in BCL2-associated athanogene 6 (BAG6) and similar proteins; BAG6, also termed large proline-rich protein BAG6, or BAG family molecular chaperone regulator 6, or HLA-B-associated transcript 3 (Bat3), or protein Scythe, or protein G3, is a nucleo-cytoplasmic shuttling chaperone protein that is highly conserved in eukaryotes. It functions in two distinct biological pathways, ubiquitin-mediated protein degradation of defective polypeptides and tail-anchored transmembrane protein biogenesis in mammals. BAG6 is a component of the heterotrimeric BAG6 sortase complex composed of BAG6, transmembrane recognition complex 35 (TRC35) and ubiquitin-like protein 4A (UBL4A). The BAG6 complex together with the cochaperone small, glutamine-rich, tetratricopeptide repeat-containing, protein alpha (SGTA) plays a role in the biogenesis of tail-anchored membrane proteins and subsequently shown to regulate the ubiquitination and proteasomal degradation of mislocalized proteins. Moreover, BAG6 acts as an apoptotic regulator that binds reaper, a potent apoptotic inducer. BAG6/reaper is thought to signal apoptosis, in part through regulating the folding and activity of apoptotic signaling molecules. It is also likely a key regulator of the molecular chaperone Heat Shock Protein A2 (HSPA2) stability/function in human germ cells. Furthermore, aspartyl protease-mediated cleavage of BAG6 is necessary for autophagy and fungal resistance in plants. BAG6 contains a ubiquitin-like (Ubl) domain with a beta-grasp Ubl fold, which provides a platform for discriminating substrates with shorter hydrophobicity stretches as a signal for defective proteins.

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2024509983  28 MELFIETLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYCLNDYNISeGCTLKLV 97
Cdd:cd01809     1 LEVTVKTLDSQNRTFTVPEEITVKEFKEHIASSVNIPAEKQRLIFQGRVLQDDKKLKEYDVD-GKVIHLV 69

ubiquitin-like (Ubl) domain found in the eukaryotic Ddi1 family; The eukaryotic Ddi1 family, including yeast aspartyl protease DNA-damage inducible 1 (Ddi1) and Ddi1-like proteins from vertebrates and other eukaryotes, has been characterized by containing an N-terminal ubiquitin-like (Ubl) domain and a conserved retroviral aspartyl-protease-like domain (RVP) that is important in cell-cycle control. Yeast Ddi1 and many family members also contain a C-terminal ubiquitin-association (UBA) domain, however, Ddi1-like proteins from all vertebrates lack the UBA domain. Ddi1, also termed v-SNARE-master 1 (Vsm1), is an ubiquitin receptor involved in the cell cycle and late secretory pathway in Saccharomyces cerevisiae. It functions as an UBA-Ubl shuttle protein that is required for the proteasome to enable ubiquitin-dependent degradation of its ligands. For instance, Ddi1 plays an essential role in the final stages of proteasomal degradation of Ho endonuclease and of its cognate FBP, Ufo1. Moreover, Ddi1 and its associated protein Rad23p play a cooperative role as negative regulators in yeast PHO pathway. This family also includes mammalian regulatory solute carrier protein family 1 member 1 (RSC1A1), also termed transporter regulator RS1 (RS1), which mediates transcriptional and post-transcriptional regulation of Na(+)-D-glucose cotransporter SGLT1. Ddi1-like proteins play a significant role in cell cycle control, growth control, and trafficking in yeast and may play a crucial role in embryogenesis in higher eukaryotes.

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 2024509983  28 MELFIETL-TGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVELKDDYC-LNDYNISEG 91
Cdd:cd01796     1 MKLTVTTEdDDRLFSLEVSPDMTLEDLKALCEAETGIPAAEQVLLHNGQPLTDDKKtLEALGLKDG 66

ubiquitin-like (Ubl) domain 1 found in Ankyrin repeat and ubiquitin domain-containing 1 (ANKUB1) and similar proteins; ANKUB1 is an uncharacterized protein with two tandem ubiquitin-like (Ubl) domains located at the N-terminal of Ankyrin repeats (ANK). The Ubl domain may have an adaptor role in ubiquitin (Ub)-signaling by mediating protein-protein interaction. Ubl proteins have a beta-grasp Ubl fold and attach to other proteins in a Ubl manner with biochemically distinct roles. The ankyrin repeats have been identified in numerous proteins with diverse functions. The family corresponds to the first Ubl domain.

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 2024509983  28 MELFIeTLTGTCFELRVSPFETVISVKAKIQRLEGIPISQQH-------LIWNNVELKDDYCLNDYNISEGCTLKLVL 98
Cdd:cd17050     1 MRIFV-AFEGEREPLDVSPGQTVGDVKEMIRDKFHIDLSDGKqgrkflvLTYAGADLQDSWVLSDIGIPPGSTIRCLL 77

ubiquitin-like (Ubl) domain found in splicing factor 3A 120kDa subunit (SF3a120) and similar proteins; Mammalian splicing factor SF3a consists of three subunits of 60, 66, and 120 kDa and functions early during pre-mRNA splicing by converting the U2 snRNP to its active form. The 120kDa subunit SF3a120, also termed splicing factor 3A subunit 1 (SF3A1), or spliceosome-associated protein 114 (SAP114), is the U2 snRNP-specific protein that is critical for spliceosome assembly and normal splicing events. During splicing, SF3a120, together with the U2 snRNP and other proteins, are recruited to the 3' splicing site to generate the splicing complex A after the recognition of the 3' splicing site. SF3a120 contains two N-terminal SWAP (suppressor-of-white-apricot) domains, referred to collectively as the SURP module, as well as a C-terminal ubiquitin-like (Ubl) domain with a beta-grasp Ubl fold, a common structure involved in protein-protein interactions.

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                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 2024509983  35 LTGTCFELRVSPFETVISVKAKIQRLEGIPISQQHLIWNNVE-LKDDYCLNDYNISEGCTLKLVL 98
Cdd:cd01800    19 LNGQVLELTLPLTDTISVLKEKIHEELGMPANKQKLQVEGGGfLKDSNSLAFYNLGSGTVLTLSL 83