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CYSH_VIBA3
ID   CYSH_VIBA3              Reviewed;         258 AA.
AC   B7VI86;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   25-MAY-2022, entry version 66.
DE   RecName: Full=Phosphoadenosine 5'-phosphosulfate reductase {ECO:0000255|HAMAP-Rule:MF_00063};
DE            Short=PAPS reductase {ECO:0000255|HAMAP-Rule:MF_00063};
DE            EC=1.8.4.8 {ECO:0000255|HAMAP-Rule:MF_00063};
DE   AltName: Full=3'-phosphoadenylylsulfate reductase {ECO:0000255|HAMAP-Rule:MF_00063};
DE   AltName: Full=PAPS reductase, thioredoxin dependent {ECO:0000255|HAMAP-Rule:MF_00063};
DE   AltName: Full=PAPS sulfotransferase {ECO:0000255|HAMAP-Rule:MF_00063};
DE   AltName: Full=PAdoPS reductase {ECO:0000255|HAMAP-Rule:MF_00063};
GN   Name=cysH {ECO:0000255|HAMAP-Rule:MF_00063}; OrderedLocusNames=VS_0301;
OS   Vibrio atlanticus (strain LGP32) (Vibrio splendidus (strain Mel32)).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Vibrio.
OX   NCBI_TaxID=575788;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LGP32;
RA   Mazel D., Le Roux F.;
RT   "Vibrio splendidus str. LGP32 complete genome.";
RL   Submitted (FEB-2009) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the formation of sulfite from phosphoadenosine 5'-
CC       phosphosulfate (PAPS) using thioredoxin as an electron donor.
CC       {ECO:0000255|HAMAP-Rule:MF_00063}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[thioredoxin]-disulfide + adenosine 3',5'-bisphosphate + 2
CC         H(+) + sulfite = 3'-phosphoadenylyl sulfate + [thioredoxin]-dithiol;
CC         Xref=Rhea:RHEA:11724, Rhea:RHEA-COMP:10698, Rhea:RHEA-COMP:10700,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:17359, ChEBI:CHEBI:29950,
CC         ChEBI:CHEBI:50058, ChEBI:CHEBI:58339, ChEBI:CHEBI:58343; EC=1.8.4.8;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00063};
CC   -!- PATHWAY: Sulfur metabolism; hydrogen sulfide biosynthesis; sulfite from
CC       sulfate: step 3/3. {ECO:0000255|HAMAP-Rule:MF_00063}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00063}.
CC   -!- SIMILARITY: Belongs to the PAPS reductase family. CysH subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00063}.
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DR   EMBL; FM954972; CAV17323.1; -; Genomic_DNA.
DR   RefSeq; WP_012603122.1; NC_011753.2.
DR   AlphaFoldDB; B7VI86; -.
DR   SMR; B7VI86; -.
DR   STRING; 575788.VS_0301; -.
DR   EnsemblBacteria; CAV17323; CAV17323; VS_0301.
DR   KEGG; vsp:VS_0301; -.
DR   PATRIC; fig|575788.5.peg.1680; -.
DR   eggNOG; COG0175; Bacteria.
DR   HOGENOM; CLU_044089_3_0_6; -.
DR   OMA; PIARWTQ; -.
DR   OrthoDB; 674332at2; -.
DR   UniPathway; UPA00140; UER00206.
DR   Proteomes; UP000009100; Chromosome 1.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004604; F:phosphoadenylyl-sulfate reductase (thioredoxin) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0070814; P:hydrogen sulfide biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0019379; P:sulfate assimilation, phosphoadenylyl sulfate reduction by phosphoadenylyl-sulfate reductase (thioredoxin); IEA:UniProtKB-UniRule.
DR   CDD; cd01713; PAPS_reductase; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   HAMAP; MF_00063; CysH; 1.
DR   InterPro; IPR004511; PAPS/APS_Rdtase.
DR   InterPro; IPR002500; PAPS_reduct.
DR   InterPro; IPR011800; PAPS_reductase_CysH.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   Pfam; PF01507; PAPS_reduct; 1.
DR   PIRSF; PIRSF000857; PAPS_reductase; 1.
DR   TIGRFAMs; TIGR00434; cysH; 1.
DR   TIGRFAMs; TIGR02057; PAPS_reductase; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Oxidoreductase; Reference proteome.
FT   CHAIN           1..258
FT                   /note="Phosphoadenosine 5'-phosphosulfate reductase"
FT                   /id="PRO_1000117933"
FT   ACT_SITE        244
FT                   /note="Nucleophile; cysteine thiosulfonate intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00063"
SQ   SEQUENCE   258 AA;  29522 MW;  6CEEB0C13121E45C CRC64;
     MHNSVASKLK LAELLALTKT EQILRLGQIN AELEQLTALE RVKWALENLE GTHVVSSSFG
     IQAALMLHLV TQAKSDIPVI LTDTGYLFPE TYRFIDELSQ KLTLNLQVFR AQQSSNWQEA
     QYGKLWDQGI EGIEKYNKLN KVEPMRRALD ELEAGTWFSG LRREQSQSRA NLPILSIQNG
     VFKFLPVIDW TNKDVHYYLE EHGLSYHPLR EQGYLSVGDT HTTKKWEPGM TEEETRFNGL
     KRECGLHEDD GEQYGSGI
 
 
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