MOCS3_CAEEL
ID MOCS3_CAEEL Reviewed; 402 AA.
AC O44510;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2001, sequence version 2.
DT 03-AUG-2022, entry version 152.
DE RecName: Full=Adenylyltransferase and sulfurtransferase MOCS3 {ECO:0000255|HAMAP-Rule:MF_03049};
DE AltName: Full=Molybdenum cofactor synthesis protein 3 {ECO:0000255|HAMAP-Rule:MF_03049};
DE AltName: Full=Ubiquitin related protein 4;
DE Includes:
DE RecName: Full=Molybdopterin-synthase adenylyltransferase {ECO:0000255|HAMAP-Rule:MF_03049};
DE EC=2.7.7.80 {ECO:0000255|HAMAP-Rule:MF_03049};
DE AltName: Full=Adenylyltransferase MOCS3 {ECO:0000255|HAMAP-Rule:MF_03049};
DE AltName: Full=Sulfur carrier protein MOCS2A adenylyltransferase {ECO:0000255|HAMAP-Rule:MF_03049};
DE Includes:
DE RecName: Full=Molybdopterin-synthase sulfurtransferase {ECO:0000255|HAMAP-Rule:MF_03049};
DE EC=2.8.1.11 {ECO:0000255|HAMAP-Rule:MF_03049};
DE AltName: Full=Sulfur carrier protein MOCS2A sulfurtransferase {ECO:0000255|HAMAP-Rule:MF_03049};
DE AltName: Full=Sulfurtransferase MOCS3 {ECO:0000255|HAMAP-Rule:MF_03049};
GN Name=moc-3 {ECO:0000255|HAMAP-Rule:MF_03049};
GN Synonyms=uba-4 {ECO:0000255|HAMAP-Rule:MF_03049}; ORFNames=F42G8.6;
OS Caenorhabditis elegans.
OC Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC Rhabditina; Rhabditomorpha; Rhabditoidea; Rhabditidae; Peloderinae;
OC Caenorhabditis.
OX NCBI_TaxID=6239;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Bristol N2;
RX PubMed=9851916; DOI=10.1126/science.282.5396.2012;
RG The C. elegans sequencing consortium;
RT "Genome sequence of the nematode C. elegans: a platform for investigating
RT biology.";
RL Science 282:2012-2018(1998).
CC -!- FUNCTION: Plays a central role in 2-thiolation of mcm(5)S(2)U at tRNA
CC wobble positions of cytosolic tRNA(Lys), tRNA(Glu) and tRNA(Gln). Also
CC essential during biosynthesis of the molybdenum cofactor. Acts by
CC mediating the C-terminal thiocarboxylation of sulfur carriers URM1 and
CC MOCS2A. Its N-terminus first activates URM1 and MOCS2A as acyl-
CC adenylates (-COAMP), then the persulfide sulfur on the catalytic
CC cysteine is transferred to URM1 and MOCS2A to form thiocarboxylation (-
CC COSH) of their C-terminus. The reaction probably involves hydrogen
CC sulfide that is generated from the persulfide intermediate and that
CC acts as nucleophile towards URM1 and MOCS2A. Subsequently, a transient
CC disulfide bond is formed. Does not use thiosulfate as sulfur donor;
CC NFS1 probably acting as a sulfur donor for thiocarboxylation reactions.
CC {ECO:0000255|HAMAP-Rule:MF_03049}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[molybdopterin-synthase sulfur-carrier protein]-C-terminal
CC Gly-Gly + ATP + H(+) = [molybdopterin-synthase sulfur-carrier
CC protein]-C-terminal Gly-Gly-AMP + diphosphate; Xref=Rhea:RHEA:43616,
CC Rhea:RHEA-COMP:12159, Rhea:RHEA-COMP:12202, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:90618,
CC ChEBI:CHEBI:90778; EC=2.7.7.80; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_03049};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[molybdopterin-synthase sulfur-carrier protein]-C-terminal
CC Gly-Gly-AMP + AH2 + S-sulfanyl-L-cysteinyl-[cysteine desulfurase] =
CC [molybdopterin-synthase sulfur-carrier protein]-C-terminal Gly-NH-
CC CH2-C(O)SH + A + AMP + H(+) + L-cysteinyl-[cysteine desulfurase];
CC Xref=Rhea:RHEA:48612, Rhea:RHEA-COMP:12157, Rhea:RHEA-COMP:12158,
CC Rhea:RHEA-COMP:12159, Rhea:RHEA-COMP:12160, ChEBI:CHEBI:13193,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17499, ChEBI:CHEBI:29950,
CC ChEBI:CHEBI:61963, ChEBI:CHEBI:90618, ChEBI:CHEBI:90619,
CC ChEBI:CHEBI:456215; EC=2.8.1.11; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_03049};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03049};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_03049};
CC -!- PATHWAY: tRNA modification; 5-methoxycarbonylmethyl-2-thiouridine-tRNA
CC biosynthesis. {ECO:0000255|HAMAP-Rule:MF_03049}.
CC -!- PATHWAY: Cofactor biosynthesis; molybdopterin biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_03049}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_03049}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the HesA/MoeB/ThiF
CC family. UBA4 subfamily. {ECO:0000255|HAMAP-Rule:MF_03049}.
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DR EMBL; FO080126; CCD61405.1; -; Genomic_DNA.
DR PIR; T32638; T32638.
DR RefSeq; NP_501359.1; NM_068958.5.
DR AlphaFoldDB; O44510; -.
DR SMR; O44510; -.
DR BioGRID; 42720; 5.
DR STRING; 6239.F42G8.6; -.
DR EPD; O44510; -.
DR PaxDb; O44510; -.
DR PeptideAtlas; O44510; -.
DR EnsemblMetazoa; F42G8.6.1; F42G8.6.1; WBGene00018357.
DR GeneID; 177607; -.
DR KEGG; cel:CELE_F42G8.6; -.
DR UCSC; F42G8.6; c. elegans.
DR CTD; 177607; -.
DR WormBase; F42G8.6; CE28320; WBGene00018357; moc-3.
DR eggNOG; KOG2017; Eukaryota.
DR GeneTree; ENSGT00940000160847; -.
DR HOGENOM; CLU_013325_1_0_1; -.
DR InParanoid; O44510; -.
DR OMA; GTIGAMQ; -.
DR OrthoDB; 1445129at2759; -.
DR PhylomeDB; O44510; -.
DR Reactome; R-CEL-947581; Molybdenum cofactor biosynthesis.
DR UniPathway; UPA00344; -.
DR UniPathway; UPA00988; -.
DR PRO; PR:O44510; -.
DR Proteomes; UP000001940; Chromosome IV.
DR Bgee; WBGene00018357; Expressed in germ line (C elegans) and 4 other tissues.
DR GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR GO; GO:0005829; C:cytosol; ISS:UniProtKB.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0061605; F:molybdopterin-synthase adenylyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0061604; F:molybdopterin-synthase sulfurtransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0016779; F:nucleotidyltransferase activity; IBA:GO_Central.
DR GO; GO:0004792; F:thiosulfate sulfurtransferase activity; ISS:UniProtKB.
DR GO; GO:0042292; F:URM1 activating enzyme activity; IBA:GO_Central.
DR GO; GO:0006777; P:Mo-molybdopterin cofactor biosynthetic process; ISS:UniProtKB.
DR GO; GO:0032447; P:protein urmylation; IBA:GO_Central.
DR GO; GO:0002143; P:tRNA wobble position uridine thiolation; IBA:GO_Central.
DR Gene3D; 3.40.250.10; -; 1.
DR HAMAP; MF_03049; MOCS3_Uba4; 1.
DR InterPro; IPR028885; MOCS3/Uba4.
DR InterPro; IPR001763; Rhodanese-like_dom.
DR InterPro; IPR036873; Rhodanese-like_dom_sf.
DR InterPro; IPR045886; ThiF/MoeB/HesA.
DR InterPro; IPR000594; ThiF_NAD_FAD-bd.
DR InterPro; IPR035985; Ubiquitin-activating_enz.
DR PANTHER; PTHR10953; PTHR10953; 1.
DR Pfam; PF00581; Rhodanese; 1.
DR Pfam; PF00899; ThiF; 1.
DR SMART; SM00450; RHOD; 1.
DR SUPFAM; SSF69572; SSF69572; 1.
DR PROSITE; PS50206; RHODANESE_3; 1.
PE 3: Inferred from homology;
KW ATP-binding; Cytoplasm; Metal-binding; Molybdenum cofactor biosynthesis;
KW Multifunctional enzyme; Nucleotide-binding; Reference proteome;
KW Transferase; tRNA processing; Zinc.
FT CHAIN 1..402
FT /note="Adenylyltransferase and sulfurtransferase MOCS3"
FT /id="PRO_0000369198"
FT DOMAIN 302..400
FT /note="Rhodanese"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT ACT_SITE 195
FT /note="Glycyl thioester intermediate; for
FT adenylyltransferase activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT ACT_SITE 359
FT /note="Cysteine persulfide intermediate; for
FT sulfurtransferase activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT BINDING 47
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT BINDING 68
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT BINDING 75..79
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT BINDING 92
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT BINDING 136..137
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT BINDING 178
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT BINDING 181
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT BINDING 253
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
FT BINDING 256
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03049"
SQ SEQUENCE 402 AA; 44465 MW; A0C70804F35B19F4 CRC64;
MNDDQWVAGI SKKDAGRYSR QLLVDDFGVS GQKNLKNLNV LIVGAGGLGC PVATYLGAAG
IGTIGIVDYD HISLDNLHRQ VAYKEDQVGK SKAQALADNI KLQNSDLNVQ VHNTSLDSSN
AMQLFKNYEI VCDCTDNVAT RYLINDVCVL LNIPLVSGSA LRWDGQLSVY HYGSDCPCYR
CLFPSPPDPN SVTNCNEGGV LGPIVGVIGS MQALEVMKIA AKVRTTLAGQ LLLFDGREGK
SRTIRLRKRD PKCEVCGDNP TITAPIDYVL FCGAGAHDKI ENLKLLELSD RVNVTEYRNK
RREQKPVLLD TRPSLEFEIA HLPEAINVTL KECRSLSAED ISNRLGLQNT EHSDVFVICH
RGNDSQRAVL LLREKLVDIK FRDIIGGYEQ WALKINDMFP LY
