hypothetical protein AYK19_03390 [Theionarchaea archaeon DG-70-1]
PqqD and Radical_SAM domain-containing protein( domain architecture ID 12063004)
PqqD and Radical_SAM domain-containing protein
List of domain hits
Name | Accession | Description | Interval | E-value | |||
SkfB | COG0535 | Radical SAM superfamily maturase, SkfB/NifB/PqqE family [Cell cycle control, cell division, ... |
137-276 | 9.72e-64 | |||
Radical SAM superfamily maturase, SkfB/NifB/PqqE family [Cell cycle control, cell division, chromosome partitioning, Coenzyme transport and metabolism]; : Pssm-ID: 440301 [Multi-domain] Cd Length: 159 Bit Score: 200.90 E-value: 9.72e-64
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SPASM | pfam13186 | Iron-sulfur cluster-binding domain; This domain occurs as an additional C-terminal iron-sulfur ... |
355-391 | 8.00e-06 | |||
Iron-sulfur cluster-binding domain; This domain occurs as an additional C-terminal iron-sulfur cluster binding domain in many radical SAM domain, pfam04055 proteins. The domain occurs in a number of proteins that modify a protein to become an active enzyme, or a peptide to become a ribosomal natural product. The domain is named SPASM because it occurs in the maturases of Subilitosin, PQQ, Anaerobic Sulfatases, and Mycofactocin. : Pssm-ID: 433020 [Multi-domain] Cd Length: 66 Bit Score: 43.24 E-value: 8.00e-06
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PqqD | pfam05402 | Coenzyme PQQ synthesis protein D (PqqD); This family contains several bacterial coenzyme PQQ ... |
59-113 | 5.96e-03 | |||
Coenzyme PQQ synthesis protein D (PqqD); This family contains several bacterial coenzyme PQQ synthesis protein D (PqqD) sequences. This protein is required for coenzyme pyrrolo-quinoline-quinone (PQQ) biosynthesis. : Pssm-ID: 461641 Cd Length: 65 Bit Score: 35.15 E-value: 5.96e-03
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Name | Accession | Description | Interval | E-value | ||||
SkfB | COG0535 | Radical SAM superfamily maturase, SkfB/NifB/PqqE family [Cell cycle control, cell division, ... |
137-276 | 9.72e-64 | ||||
Radical SAM superfamily maturase, SkfB/NifB/PqqE family [Cell cycle control, cell division, chromosome partitioning, Coenzyme transport and metabolism]; Pssm-ID: 440301 [Multi-domain] Cd Length: 159 Bit Score: 200.90 E-value: 9.72e-64
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mycofact_rSAM | TIGR03962 | mycofactocin radical SAM maturase; Members of this family are uncharacterized radical SAM ... |
140-296 | 2.81e-38 | ||||
mycofactocin radical SAM maturase; Members of this family are uncharacterized radical SAM proteins from the Mycobacterium tuberculosis and many other Actinobacteria, as well as some deltaproteobacteria (e.g. Geobacter uraniireducens), firmicutes (Pelotomaculum thermopropionicum and Desulfotomaculum acetoxidans), and Chloroflexi (Thermomicrobium roseum DSM 5159 and Sphaerobacter thermophilus DSM 20745). They resemble several characterized radical SAM enzymes of peptide modification (PqqE, AlbA), and are always found next to the proposed target, TIGR03969, the putative mycofactocin precursor. [Unknown function, Enzymes of unknown specificity] Pssm-ID: 188477 [Multi-domain] Cd Length: 339 Bit Score: 140.37 E-value: 2.81e-38
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Radical_SAM | pfam04055 | Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual ... |
141-275 | 3.15e-26 | ||||
Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual methylations, isomerization, sulphur insertion, ring formation, anaerobic oxidation and protein radical formation. Pssm-ID: 427681 [Multi-domain] Cd Length: 159 Bit Score: 102.99 E-value: 3.15e-26
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Radical_SAM | cd01335 | Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S ... |
139-310 | 9.66e-25 | ||||
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S cluster and S-adenosylmethionine (SAM) in close proximity. They are characterized by a conserved CxxxCxxC motif, which coordinates the conserved iron-sulfur cluster. Mechanistically, they share the transfer of a single electron from the iron-sulfur cluster to SAM, which leads to its reductive cleavage to methionine and a 5'-deoxyadenosyl radical, which, in turn, abstracts a hydrogen from the appropriately positioned carbon atom. Depending on the enzyme, SAM is consumed during this process or it is restored and reused. Radical SAM enzymes catalyze steps in metabolism, DNA repair, the biosynthesis of vitamins and coenzymes, and the biosynthesis of many antibiotics. Examples are biotin synthase (BioB), lipoyl synthase (LipA), pyruvate formate-lyase (PFL), coproporphyrinogen oxidase (HemN), lysine 2,3-aminomutase (LAM), anaerobic ribonucleotide reductase (ARR), and MoaA, an enzyme of the biosynthesis of molybdopterin. Pssm-ID: 100105 [Multi-domain] Cd Length: 204 Bit Score: 100.49 E-value: 9.66e-25
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moaA | PRK00164 | GTP 3',8-cyclase MoaA; |
139-296 | 3.76e-21 | ||||
GTP 3',8-cyclase MoaA; Pssm-ID: 234672 [Multi-domain] Cd Length: 331 Bit Score: 93.28 E-value: 3.76e-21
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viperin_w_prok | NF038283 | viperin family antiviral radical SAM protein; Homologs of a viral defense radical SAM enzyme ... |
141-288 | 2.33e-11 | ||||
viperin family antiviral radical SAM protein; Homologs of a viral defense radical SAM enzyme found in Homo sapiens, viperin (RSAD2), occur in prokaryotes with a strong bias toward placement in phage defense islands, encoded next to CRISPR system and restriction enzyme genes. Further investigation shows members indeed perform the anti-viral function of synthesizing modified ribonucleotides such as ddhCTP, ddh-guanosine triphosphate (ddhGTP) and ddh-uridine triphosphate (ddhUTP). Those non-standard ribonucleotides can interfere with viral replication machinery. Pssm-ID: 468450 [Multi-domain] Cd Length: 280 Bit Score: 63.72 E-value: 2.33e-11
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Elp3 | smart00729 | Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, ... |
138-273 | 1.67e-08 | ||||
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, coproporphyrinogen III oxidase, biotin synthase and MiaB families, and includes a representative in the eukaryotic elongator subunit, Elp-3. Some members of the family are methyltransferases. Pssm-ID: 214792 [Multi-domain] Cd Length: 216 Bit Score: 54.33 E-value: 1.67e-08
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rSAM_mat_DarW | NF041300 | radical SAM/SPASM peptide maturase DarW; DarW is a radical SAM/SPASM domain-containing peptide ... |
137-273 | 2.26e-06 | ||||
radical SAM/SPASM peptide maturase DarW; DarW is a radical SAM/SPASM domain-containing peptide maturase most closely related to the darobactin maturase DarE. Pssm-ID: 469197 [Multi-domain] Cd Length: 415 Bit Score: 49.50 E-value: 2.26e-06
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SPASM | pfam13186 | Iron-sulfur cluster-binding domain; This domain occurs as an additional C-terminal iron-sulfur ... |
355-391 | 8.00e-06 | ||||
Iron-sulfur cluster-binding domain; This domain occurs as an additional C-terminal iron-sulfur cluster binding domain in many radical SAM domain, pfam04055 proteins. The domain occurs in a number of proteins that modify a protein to become an active enzyme, or a peptide to become a ribosomal natural product. The domain is named SPASM because it occurs in the maturases of Subilitosin, PQQ, Anaerobic Sulfatases, and Mycofactocin. Pssm-ID: 433020 [Multi-domain] Cd Length: 66 Bit Score: 43.24 E-value: 8.00e-06
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SPASM | cd21109 | Iron-sulfur cluster-binding SPASM domain; This iron-sulfur cluster-binding domain is named ... |
355-392 | 3.12e-05 | ||||
Iron-sulfur cluster-binding SPASM domain; This iron-sulfur cluster-binding domain is named SPASM after the biochemically characterized members, AlbA, PqqE, anSME, and MftC, which are involved in Subtilosin A, Pyrroloquinoline quinone, Anaerobic Sulfatase, and Mycofactocin maturation, respectively. SPASM occurs as an additional C-terminal domain in many peptide-modifying enzymes of the radical S-adenosylmethionine (SAM) superfamily. Radical SAM enzymes are characterized by a conserved CxxxCxxC motif, which coordinates the conserved iron-sulfur cluster that is involved in the reductive cleavage of SAM and generates a 5'-deoxyadenosyl radical, which in turn abstracts a hydrogen from the appropriately positioned carbon atom of the substrate. Radical SAM enzymes with a C-terminal SPASM domain contain at least one other iron-sulfur cluster. Pssm-ID: 410609 [Multi-domain] Cd Length: 65 Bit Score: 41.64 E-value: 3.12e-05
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rSAM_more_4Fe4S | TIGR04085 | radical SAM additional 4Fe4S-binding SPASM domain; This domain contains regions binding ... |
355-391 | 3.33e-05 | ||||
radical SAM additional 4Fe4S-binding SPASM domain; This domain contains regions binding additional 4Fe4S clusters found in various radical SAM proteins C-terminal to the domain described by model pfam04055. Radical SAM enzymes with this domain tend to be involved in protein modification, including anaerobic sulfatase maturation proteins, a quinohemoprotein amine dehydrogenase biogenesis protein, the Pep1357-cyclizing radical SAM enzyme, and various bacteriocin biosynthesis proteins. The motif CxxCxxxxxCxxxC is nearly invariant for members of this family, although PqqE has a variant form. We name this domain SPASM for Subtilosin, PQQ, Anaerobic Sulfatase, and Mycofactocin. Pssm-ID: 274968 [Multi-domain] Cd Length: 93 Bit Score: 42.18 E-value: 3.33e-05
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PqqD | pfam05402 | Coenzyme PQQ synthesis protein D (PqqD); This family contains several bacterial coenzyme PQQ ... |
59-113 | 5.96e-03 | ||||
Coenzyme PQQ synthesis protein D (PqqD); This family contains several bacterial coenzyme PQQ synthesis protein D (PqqD) sequences. This protein is required for coenzyme pyrrolo-quinoline-quinone (PQQ) biosynthesis. Pssm-ID: 461641 Cd Length: 65 Bit Score: 35.15 E-value: 5.96e-03
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Name | Accession | Description | Interval | E-value | |||||
SkfB | COG0535 | Radical SAM superfamily maturase, SkfB/NifB/PqqE family [Cell cycle control, cell division, ... |
137-276 | 9.72e-64 | |||||
Radical SAM superfamily maturase, SkfB/NifB/PqqE family [Cell cycle control, cell division, chromosome partitioning, Coenzyme transport and metabolism]; Pssm-ID: 440301 [Multi-domain] Cd Length: 159 Bit Score: 200.90 E-value: 9.72e-64
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AslB | COG0641 | Sulfatase maturation enzyme AslB, radical SAM superfamily [Posttranslational modification, ... |
136-392 | 1.81e-39 | |||||
Sulfatase maturation enzyme AslB, radical SAM superfamily [Posttranslational modification, protein turnover, chaperones]; Pssm-ID: 440406 [Multi-domain] Cd Length: 349 Bit Score: 143.97 E-value: 1.81e-39
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mycofact_rSAM | TIGR03962 | mycofactocin radical SAM maturase; Members of this family are uncharacterized radical SAM ... |
140-296 | 2.81e-38 | |||||
mycofactocin radical SAM maturase; Members of this family are uncharacterized radical SAM proteins from the Mycobacterium tuberculosis and many other Actinobacteria, as well as some deltaproteobacteria (e.g. Geobacter uraniireducens), firmicutes (Pelotomaculum thermopropionicum and Desulfotomaculum acetoxidans), and Chloroflexi (Thermomicrobium roseum DSM 5159 and Sphaerobacter thermophilus DSM 20745). They resemble several characterized radical SAM enzymes of peptide modification (PqqE, AlbA), and are always found next to the proposed target, TIGR03969, the putative mycofactocin precursor. [Unknown function, Enzymes of unknown specificity] Pssm-ID: 188477 [Multi-domain] Cd Length: 339 Bit Score: 140.37 E-value: 2.81e-38
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SCM_rSAM_ScmF | TIGR04251 | SynChlorMet cassette radical SAM/SPASM protein ScmF; A biosynthesis cassette found in ... |
132-294 | 2.81e-32 | |||||
SynChlorMet cassette radical SAM/SPASM protein ScmF; A biosynthesis cassette found in Syntrophobacter fumaroxidans MPOB, Chlorobium limicola DSM 245, Methanocella paludicola SANAE, and delta proteobacterium NaphS2 contains two PqqE-like radical SAM/SPASM domain proteins, a PqqD homolog, and a conserved hypothetical protein. These components suggest modification of a ribosomally produced peptide precursor, but the precursor has not been identified. Of the two PqqE homologs of the cassette, this family is the more distant in sequence. Pssm-ID: 211974 [Multi-domain] Cd Length: 353 Bit Score: 124.56 E-value: 2.81e-32
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SCM_rSAM_ScmE | TIGR04250 | SynChlorMet cassette radical SAM/SPASM protein ScmE; A biosynthesis cassette found in ... |
135-346 | 2.50e-30 | |||||
SynChlorMet cassette radical SAM/SPASM protein ScmE; A biosynthesis cassette found in Syntrophobacter fumaroxidans MPOB, Chlorobium limicola DSM 245, Methanocella paludicola SANAE, and delta proteobacterium NaphS2 contains two PqqE-like radical SAM/SPASM domain proteins, a PqqD homolog, and a conserved hypothetical protein. These components suggest modification of a ribosomally produced peptide precursor, but the precursor has not been identified. Of the two PqqE homologs of the cassette, this family is the closer in sequence. Pssm-ID: 211973 [Multi-domain] Cd Length: 358 Bit Score: 119.58 E-value: 2.50e-30
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Radical_SAM | pfam04055 | Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual ... |
141-275 | 3.15e-26 | |||||
Radical SAM superfamily; Radical SAM proteins catalyze diverse reactions, including unusual methylations, isomerization, sulphur insertion, ring formation, anaerobic oxidation and protein radical formation. Pssm-ID: 427681 [Multi-domain] Cd Length: 159 Bit Score: 102.99 E-value: 3.15e-26
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Radical_SAM | cd01335 | Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S ... |
139-310 | 9.66e-25 | |||||
Radical SAM superfamily. Enzymes of this family generate radicals by combining a 4Fe-4S cluster and S-adenosylmethionine (SAM) in close proximity. They are characterized by a conserved CxxxCxxC motif, which coordinates the conserved iron-sulfur cluster. Mechanistically, they share the transfer of a single electron from the iron-sulfur cluster to SAM, which leads to its reductive cleavage to methionine and a 5'-deoxyadenosyl radical, which, in turn, abstracts a hydrogen from the appropriately positioned carbon atom. Depending on the enzyme, SAM is consumed during this process or it is restored and reused. Radical SAM enzymes catalyze steps in metabolism, DNA repair, the biosynthesis of vitamins and coenzymes, and the biosynthesis of many antibiotics. Examples are biotin synthase (BioB), lipoyl synthase (LipA), pyruvate formate-lyase (PFL), coproporphyrinogen oxidase (HemN), lysine 2,3-aminomutase (LAM), anaerobic ribonucleotide reductase (ARR), and MoaA, an enzyme of the biosynthesis of molybdopterin. Pssm-ID: 100105 [Multi-domain] Cd Length: 204 Bit Score: 100.49 E-value: 9.66e-25
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moaA | PRK00164 | GTP 3',8-cyclase MoaA; |
139-296 | 3.76e-21 | |||||
GTP 3',8-cyclase MoaA; Pssm-ID: 234672 [Multi-domain] Cd Length: 331 Bit Score: 93.28 E-value: 3.76e-21
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MoaA | COG2896 | GTP 3',8-cyclase (molybdenum cofactor biosynthesis protein MoaA) [Coenzyme transport and ... |
141-301 | 1.29e-20 | |||||
GTP 3',8-cyclase (molybdenum cofactor biosynthesis protein MoaA) [Coenzyme transport and metabolism]; GTP 3',8-cyclase (molybdenum cofactor biosynthesis protein MoaA) is part of the Pathway/BioSystem: Molybdopterin biosynthesis Pssm-ID: 442141 [Multi-domain] Cd Length: 329 Bit Score: 91.66 E-value: 1.29e-20
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rSAM_pep_methan | TIGR04083 | putative peptide-modifying radical SAM enzyme, Mhun_1560 family; Members of this family are ... |
137-389 | 3.80e-20 | |||||
putative peptide-modifying radical SAM enzyme, Mhun_1560 family; Members of this family are radical SAM enzymes, homologous to a variety of other peptide-modifying radical SAM, and found primarily in methanogenic archaea. Pssm-ID: 274966 [Multi-domain] Cd Length: 376 Bit Score: 90.94 E-value: 3.80e-20
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TM0948 | COG5014 | Uncharacterized conserved protein TM0948, MoaA-related, radical SAM superfamily [General ... |
145-282 | 1.60e-11 | |||||
Uncharacterized conserved protein TM0948, MoaA-related, radical SAM superfamily [General function prediction only]; Pssm-ID: 444038 Cd Length: 261 Bit Score: 64.24 E-value: 1.60e-11
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Tyw1 | COG0731 | Wyosine [tRNA(Phe)-imidazoG37] synthetase, radical SAM superfamily [Translation, ribosomal ... |
144-269 | 2.27e-11 | |||||
Wyosine [tRNA(Phe)-imidazoG37] synthetase, radical SAM superfamily [Translation, ribosomal structure and biogenesis]; Wyosine [tRNA(Phe)-imidazoG37] synthetase, radical SAM superfamily is part of the Pathway/BioSystem: tRNA modification Pssm-ID: 440495 [Multi-domain] Cd Length: 248 Bit Score: 63.29 E-value: 2.27e-11
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viperin_w_prok | NF038283 | viperin family antiviral radical SAM protein; Homologs of a viral defense radical SAM enzyme ... |
141-288 | 2.33e-11 | |||||
viperin family antiviral radical SAM protein; Homologs of a viral defense radical SAM enzyme found in Homo sapiens, viperin (RSAD2), occur in prokaryotes with a strong bias toward placement in phage defense islands, encoded next to CRISPR system and restriction enzyme genes. Further investigation shows members indeed perform the anti-viral function of synthesizing modified ribonucleotides such as ddhCTP, ddh-guanosine triphosphate (ddhGTP) and ddh-uridine triphosphate (ddhUTP). Those non-standard ribonucleotides can interfere with viral replication machinery. Pssm-ID: 468450 [Multi-domain] Cd Length: 280 Bit Score: 63.72 E-value: 2.33e-11
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PLN02951 | PLN02951 | Molybderin biosynthesis protein CNX2 |
139-266 | 1.74e-10 | |||||
Molybderin biosynthesis protein CNX2 Pssm-ID: 215513 [Multi-domain] Cd Length: 373 Bit Score: 62.08 E-value: 1.74e-10
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PflA | COG1180 | Pyruvate-formate lyase-activating enzyme [Posttranslational modification, protein turnover, ... |
145-275 | 9.57e-10 | |||||
Pyruvate-formate lyase-activating enzyme [Posttranslational modification, protein turnover, chaperones]; Pssm-ID: 440793 [Multi-domain] Cd Length: 242 Bit Score: 58.66 E-value: 9.57e-10
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Fer4_12 | pfam13353 | 4Fe-4S single cluster domain; This family includes proteins containing domains which bind to ... |
145-239 | 9.78e-09 | |||||
4Fe-4S single cluster domain; This family includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. The structure of the domain is an alpha-antiparallel beta sandwich. Pssm-ID: 433138 [Multi-domain] Cd Length: 137 Bit Score: 53.33 E-value: 9.78e-09
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PRK13745 | PRK13745 | anaerobic sulfatase-maturation protein; |
132-296 | 1.14e-08 | |||||
anaerobic sulfatase-maturation protein; Pssm-ID: 237489 [Multi-domain] Cd Length: 412 Bit Score: 56.41 E-value: 1.14e-08
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Elp3 | smart00729 | Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, ... |
138-273 | 1.67e-08 | |||||
Elongator protein 3, MiaB family, Radical SAM; This superfamily contains MoaA, NifB, PqqE, coproporphyrinogen III oxidase, biotin synthase and MiaB families, and includes a representative in the eukaryotic elongator subunit, Elp-3. Some members of the family are methyltransferases. Pssm-ID: 214792 [Multi-domain] Cd Length: 216 Bit Score: 54.33 E-value: 1.67e-08
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PRK13758 | PRK13758 | anaerobic sulfatase-maturase; Provisional |
145-391 | 2.77e-08 | |||||
anaerobic sulfatase-maturase; Provisional Pssm-ID: 172296 [Multi-domain] Cd Length: 370 Bit Score: 55.31 E-value: 2.77e-08
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Fer4_14 | pfam13394 | 4Fe-4S single cluster domain; |
145-239 | 7.59e-08 | |||||
4Fe-4S single cluster domain; Pssm-ID: 433171 [Multi-domain] Cd Length: 115 Bit Score: 50.44 E-value: 7.59e-08
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QueE | COG0602 | Organic radical activating enzyme NrdG/QueE [Coenzyme transport and metabolism]; Organic ... |
145-219 | 1.05e-07 | |||||
Organic radical activating enzyme NrdG/QueE [Coenzyme transport and metabolism]; Organic radical activating enzyme NrdG/QueE is part of the Pathway/BioSystem: tRNA modification Pssm-ID: 440367 [Multi-domain] Cd Length: 205 Bit Score: 52.06 E-value: 1.05e-07
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NrdG2 | TIGR02495 | anaerobic ribonucleoside-triphosphate reductase activating protein; This enzyme is a member of ... |
145-273 | 3.81e-07 | |||||
anaerobic ribonucleoside-triphosphate reductase activating protein; This enzyme is a member of the radical-SAM family (pfam04055). It is often gene clustered with the class III (anaerobic) ribonucleotide triphosphate reductase (NrdD, TIGR02487) and presumably fulfills the identical function as NrdG, which utilizes S-adenosyl methionine, an iron-sulfur cluster and a reductant (dihydroflavodoxin) to produce a glycine-centered radical in NrdD. [Purines, pyrimidines, nucleosides, and nucleotides, 2'-Deoxyribonucleotide metabolism, Protein fate, Protein modification and repair] Pssm-ID: 274164 [Multi-domain] Cd Length: 192 Bit Score: 50.05 E-value: 3.81e-07
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rSAM_mat_DarW | NF041300 | radical SAM/SPASM peptide maturase DarW; DarW is a radical SAM/SPASM domain-containing peptide ... |
137-273 | 2.26e-06 | |||||
radical SAM/SPASM peptide maturase DarW; DarW is a radical SAM/SPASM domain-containing peptide maturase most closely related to the darobactin maturase DarE. Pssm-ID: 469197 [Multi-domain] Cd Length: 415 Bit Score: 49.50 E-value: 2.26e-06
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SPASM | pfam13186 | Iron-sulfur cluster-binding domain; This domain occurs as an additional C-terminal iron-sulfur ... |
355-391 | 8.00e-06 | |||||
Iron-sulfur cluster-binding domain; This domain occurs as an additional C-terminal iron-sulfur cluster binding domain in many radical SAM domain, pfam04055 proteins. The domain occurs in a number of proteins that modify a protein to become an active enzyme, or a peptide to become a ribosomal natural product. The domain is named SPASM because it occurs in the maturases of Subilitosin, PQQ, Anaerobic Sulfatases, and Mycofactocin. Pssm-ID: 433020 [Multi-domain] Cd Length: 66 Bit Score: 43.24 E-value: 8.00e-06
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SPASM | cd21109 | Iron-sulfur cluster-binding SPASM domain; This iron-sulfur cluster-binding domain is named ... |
355-392 | 3.12e-05 | |||||
Iron-sulfur cluster-binding SPASM domain; This iron-sulfur cluster-binding domain is named SPASM after the biochemically characterized members, AlbA, PqqE, anSME, and MftC, which are involved in Subtilosin A, Pyrroloquinoline quinone, Anaerobic Sulfatase, and Mycofactocin maturation, respectively. SPASM occurs as an additional C-terminal domain in many peptide-modifying enzymes of the radical S-adenosylmethionine (SAM) superfamily. Radical SAM enzymes are characterized by a conserved CxxxCxxC motif, which coordinates the conserved iron-sulfur cluster that is involved in the reductive cleavage of SAM and generates a 5'-deoxyadenosyl radical, which in turn abstracts a hydrogen from the appropriately positioned carbon atom of the substrate. Radical SAM enzymes with a C-terminal SPASM domain contain at least one other iron-sulfur cluster. Pssm-ID: 410609 [Multi-domain] Cd Length: 65 Bit Score: 41.64 E-value: 3.12e-05
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rSAM_more_4Fe4S | TIGR04085 | radical SAM additional 4Fe4S-binding SPASM domain; This domain contains regions binding ... |
355-391 | 3.33e-05 | |||||
radical SAM additional 4Fe4S-binding SPASM domain; This domain contains regions binding additional 4Fe4S clusters found in various radical SAM proteins C-terminal to the domain described by model pfam04055. Radical SAM enzymes with this domain tend to be involved in protein modification, including anaerobic sulfatase maturation proteins, a quinohemoprotein amine dehydrogenase biogenesis protein, the Pep1357-cyclizing radical SAM enzyme, and various bacteriocin biosynthesis proteins. The motif CxxCxxxxxCxxxC is nearly invariant for members of this family, although PqqE has a variant form. We name this domain SPASM for Subtilosin, PQQ, Anaerobic Sulfatase, and Mycofactocin. Pssm-ID: 274968 [Multi-domain] Cd Length: 93 Bit Score: 42.18 E-value: 3.33e-05
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COG2100 | COG2100 | Uncharacterized Fe-S cluster-containing enzyme, radical SAM superfamily [General function ... |
139-255 | 5.86e-05 | |||||
Uncharacterized Fe-S cluster-containing enzyme, radical SAM superfamily [General function prediction only]; Pssm-ID: 441703 [Multi-domain] Cd Length: 344 Bit Score: 44.51 E-value: 5.86e-05
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SAM_SPASM_FxsB | TIGR04269 | radical SAM/SPASM domain protein, FxsB family; This model describes a radical SAM (pfam04055) ... |
134-270 | 1.14e-04 | |||||
radical SAM/SPASM domain protein, FxsB family; This model describes a radical SAM (pfam04055)/SPASM domain (TIGR04085) fusion subfamily distinct from PqqE, MftC, anaerobic sulfatase maturases, and other peptide maturases. The combined region described in this model can itself be fused to another domain, such as TIGR04267, or stand alone. Members occurring in the same cassette as a member of family TIGR04268 should be designated FxsB. Pssm-ID: 275093 [Multi-domain] Cd Length: 363 Bit Score: 43.95 E-value: 1.14e-04
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rSAM_Cxxx_rpt | TIGR04115 | radical SAM peptide maturase, CXXX-repeat target family; Members of this radical SAM domain ... |
135-392 | 1.30e-04 | |||||
radical SAM peptide maturase, CXXX-repeat target family; Members of this radical SAM domain protein are predicted peptide maturases, similar to PqqE, AlbA, the mycofactocin radical SAM maturase, and many others that share the peptide modification radical SAM protein C-terminal additional 4Fe4S-binding domain (TIGR04085). Members co-occur with a protein of unknown function that may be a chaperone or immunity protein and with a peptide that may have twelve or more cysteines occurring regularly spaced every fourth residue. These Cys residues tend to be flanked by residues with small side chains that provide minimal steric hindrance to crosslink formation by the radical SAM enzyme as in the subtilosin A system. Pssm-ID: 200366 [Multi-domain] Cd Length: 359 Bit Score: 43.72 E-value: 1.30e-04
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PqqD | pfam05402 | Coenzyme PQQ synthesis protein D (PqqD); This family contains several bacterial coenzyme PQQ ... |
59-113 | 5.96e-03 | |||||
Coenzyme PQQ synthesis protein D (PqqD); This family contains several bacterial coenzyme PQQ synthesis protein D (PqqD) sequences. This protein is required for coenzyme pyrrolo-quinoline-quinone (PQQ) biosynthesis. Pssm-ID: 461641 Cd Length: 65 Bit Score: 35.15 E-value: 5.96e-03
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SPASM_AlbA-like | cd21125 | Iron-sulfur cluster-binding SPASM domain of antilisterial bacteriocin subtilosin biosynthesis ... |
354-376 | 7.06e-03 | |||||
Iron-sulfur cluster-binding SPASM domain of antilisterial bacteriocin subtilosin biosynthesis protein AlbA and similar proteins; Bacillus subtilis antilisterial bacteriocin subtilosin biosynthesis protein AlbA is a radical S-adenosylmethionine (SAM) enzyme that catalyzes the formation of three thioether bonds in the post-translational modification of a linear peptide into the cyclic peptide subtilosin A. The thioether bonds formed are between the sulfur of three cysteine residues and the alpha-carbons of two phenylalanines and one threonine to produce a rigid cyclic peptide. Radical SAM enzymes are characterized by a conserved CxxxCxxC motif, which coordinates the conserved iron-sulfur cluster that is involved in the reductive cleavage of SAM and generates a 5'-deoxyadenosyl radical, which in turn abstracts a hydrogen from the appropriately positioned carbon atom of the substrate. Radical SAM enzymes with a C-terminal SPASM domain contain at least one other iron-sulfur cluster. AlbA appears to contain one auxillary Fe-S cluster, similar to the auxillary 4Fe-4S cluster in Bacillus circulans butirosin biosynthetic enzyme BtrN. Pssm-ID: 410616 [Multi-domain] Cd Length: 97 Bit Score: 35.93 E-value: 7.06e-03
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