ID A0A3Q3M7J1_9LABR Unreviewed; 459 AA.
AC A0A3Q3M7J1;
DT 10-APR-2019, integrated into UniProtKB/TrEMBL.
DT 10-APR-2019, sequence version 1.
DT 27-MAR-2024, entry version 24.
DE RecName: Full=Adenylyltransferase and sulfurtransferase MOCS3 {ECO:0000256|HAMAP-Rule:MF_03049};
DE AltName: Full=Molybdenum cofactor synthesis protein 3 {ECO:0000256|HAMAP-Rule:MF_03049};
DE Includes:
DE RecName: Full=Molybdopterin-synthase adenylyltransferase {ECO:0000256|HAMAP-Rule:MF_03049};
DE EC=2.7.7.80 {ECO:0000256|HAMAP-Rule:MF_03049};
DE AltName: Full=Adenylyltransferase MOCS3 {ECO:0000256|HAMAP-Rule:MF_03049};
DE AltName: Full=Sulfur carrier protein MOCS2A adenylyltransferase {ECO:0000256|HAMAP-Rule:MF_03049};
DE Includes:
DE RecName: Full=Molybdopterin-synthase sulfurtransferase {ECO:0000256|HAMAP-Rule:MF_03049};
DE EC=2.8.1.11 {ECO:0000256|HAMAP-Rule:MF_03049};
DE AltName: Full=Sulfurtransferase MOCS3 {ECO:0000256|HAMAP-Rule:MF_03049};
DE AltName: Full=Sulfur carrier protein MOCS2A sulfurtransferase {ECO:0000256|HAMAP-Rule:MF_03049};
GN Name=MOCS3 {ECO:0000256|HAMAP-Rule:MF_03049};
GN Synonyms=UBA4 {ECO:0000256|HAMAP-Rule:MF_03049};
OS Labrus bergylta (ballan wrasse).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Eupercaria; Labriformes; Labridae; Labrus.
OX NCBI_TaxID=56723 {ECO:0000313|Ensembl:ENSLBEP00000016390.1, ECO:0000313|Proteomes:UP000261660};
RN [1] {ECO:0000313|Ensembl:ENSLBEP00000016390.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (NOV-2023) to UniProtKB.
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:0000256|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:0000256|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:0000256|HAMAP-
CC Rule:MF_03049};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03049};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|HAMAP-Rule:MF_03049};
CC -!- PATHWAY: Cofactor biosynthesis; molybdopterin biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_03049}.
CC -!- PATHWAY: tRNA modification; 5-methoxycarbonylmethyl-2-thiouridine-tRNA
CC biosynthesis. {ECO:0000256|HAMAP-Rule:MF_03049}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03049}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the HesA/MoeB/ThiF
CC family. UBA4 subfamily. {ECO:0000256|HAMAP-Rule:MF_03049}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR AlphaFoldDB; A0A3Q3M7J1; -.
DR STRING; 56723.ENSLBEP00000016390; -.
DR Ensembl; ENSLBET00000017329.1; ENSLBEP00000016390.1; ENSLBEG00000012656.1.
DR GeneTree; ENSGT00940000160847; -.
DR InParanoid; A0A3Q3M7J1; -.
DR OrthoDB; 53913at2759; -.
DR UniPathway; UPA00344; -.
DR UniPathway; UPA00988; -.
DR Proteomes; UP000261660; Unplaced.
DR GO; GO:0005829; C:cytosol; IEA:InterPro.
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:0008641; F:ubiquitin-like modifier activating enzyme activity; IEA:InterPro.
DR GO; GO:0006777; P:Mo-molybdopterin cofactor biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0002143; P:tRNA wobble position uridine thiolation; IEA:InterPro.
DR CDD; cd00757; ThiF_MoeB_HesA_family; 1.
DR Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR Gene3D; 3.40.250.10; Rhodanese-like domain; 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:SF102; ADENYLYLTRANSFERASE AND SULFURTRANSFERASE MOCS3; 1.
DR PANTHER; PTHR10953; UBIQUITIN-ACTIVATING ENZYME E1; 1.
DR Pfam; PF00581; Rhodanese; 1.
DR Pfam; PF00899; ThiF; 1.
DR SMART; SM00450; RHOD; 1.
DR SUPFAM; SSF69572; Activating enzymes of the ubiquitin-like proteins; 1.
DR PROSITE; PS50206; RHODANESE_3; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_03049};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_03049};
KW Disulfide bond {ECO:0000256|HAMAP-Rule:MF_03049};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_03049};
KW Molybdenum cofactor biosynthesis {ECO:0000256|ARBA:ARBA00023150,
KW ECO:0000256|HAMAP-Rule:MF_03049};
KW Multifunctional enzyme {ECO:0000256|ARBA:ARBA00023268, ECO:0000256|HAMAP-
KW Rule:MF_03049};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_03049}; Reference proteome {ECO:0000313|Proteomes:UP000261660};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_03049};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694, ECO:0000256|HAMAP-
KW Rule:MF_03049};
KW Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|HAMAP-Rule:MF_03049}.
FT DOMAIN 347..457
FT /note="Rhodanese"
FT /evidence="ECO:0000259|PROSITE:PS50206"
FT ACT_SITE 239
FT /note="Glycyl thioester intermediate; for
FT adenylyltransferase activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT ACT_SITE 412
FT /note="Cysteine persulfide intermediate; for
FT sulfurtransferase activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT BINDING 92
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT BINDING 113
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT BINDING 120..124
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT BINDING 137
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT BINDING 181..182
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT BINDING 222
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT BINDING 225
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT BINDING 297
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT BINDING 300
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
FT DISULFID 316..324
FT /note="Alternate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03049"
SQ SEQUENCE 459 AA; 50229 MW; 1895146F9ED3CF33 CRC64;
MAEDVCCLKA QLEEKEKEIS ALKNKLAHLE KSFTSVLELH DKVIPLTPLK AKATLSNEDI
MRYSRQLLLP ELGVQGQLNL SKTSVLVVGC GGLGCPLAQY LAAAGIGRLG LLDYDEVELS
NLHRQVLHGE ENQGQAKALS AANAVTRLNS SVECIPYHLQ LSPENALQLI QQYDIVADCS
DNVPTRYLVN DACVLSGKPL VSASALRMEG QLTVYNYCGG PCYRCLYPVP PPAETVTNCS
DGGVLGVVPG IMGCFQALEV LKIASGQGSS CRQQLMMFDA QDARFRSIKL RPKQAGCAVC
GENPRVTQLV DYEAFCGSAA TDKCRKLNLL SRDQRITVQD YKSLMDNAEP HLLLDVRPRV
EVDICHLPFS LNIPLSSLEE RKSDGIRLLQ EKISQLKQQM AGDCQPSVYV ICKLGNDSQK
AVQVLEKISG SEMDRVTVKD ISGGLMAWAK KIDPTFPQY
//
