ID   CYSH_XANC5              Reviewed;         241 AA.
AC   Q3BPY3;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 93.
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=XCV3449;
OS   Xanthomonas campestris pv. vesicatoria (strain 85-10).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=316273;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=85-10;
RX   PubMed=16237009; DOI=10.1128/jb.187.21.7254-7266.2005;
RA   Thieme F., Koebnik R., Bekel T., Berger C., Boch J., Buettner D.,
RA   Caldana C., Gaigalat L., Goesmann A., Kay S., Kirchner O., Lanz C.,
RA   Linke B., McHardy A.C., Meyer F., Mittenhuber G., Nies D.H.,
RA   Niesbach-Kloesgen U., Patschkowski T., Rueckert C., Rupp O., Schneiker S.,
RA   Schuster S.C., Vorhoelter F.J., Weber E., Puehler A., Bonas U., Bartels D.,
RA   Kaiser O.;
RT   "Insights into genome plasticity and pathogenicity of the plant pathogenic
RT   Bacterium Xanthomonas campestris pv. vesicatoria revealed by the complete
RT   genome sequence.";
RL   J. Bacteriol. 187:7254-7266(2005).
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; AM039952; CAJ25180.1; -; Genomic_DNA.
DR   RefSeq; WP_008571174.1; NZ_CP017190.1.
DR   AlphaFoldDB; Q3BPY3; -.
DR   SMR; Q3BPY3; -.
DR   STRING; 456327.BJD11_05490; -.
DR   EnsemblBacteria; CAJ25180; CAJ25180; XCV3449.
DR   GeneID; 63992478; -.
DR   KEGG; xcv:XCV3449; -.
DR   eggNOG; COG0175; Bacteria.
DR   HOGENOM; CLU_044089_3_0_6; -.
DR   OMA; PIARWTQ; -.
DR   UniPathway; UPA00140; UER00206.
DR   Proteomes; UP000007069; Chromosome.
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.
FT   CHAIN           1..241
FT                   /note="Phosphoadenosine 5'-phosphosulfate reductase"
FT                   /id="PRO_1000008944"
FT   ACT_SITE        235
FT                   /note="Nucleophile; cysteine thiosulfonate intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00063"
SQ   SEQUENCE   241 AA;  27674 MW;  F979C2137E876F27 CRC64;
     MTALPAASIT SSAFDDLDAL NAQLEGLHAD QRVAWALQHG PQNAALSSSF GAQSAVTLHL
     LSQQRPDIPV ILIDTGYLFP ETYRFADALT ERLKLNLKVY RPLVSRAWME ARHGRLWEQG
     MVGIDQYNNL RKVEPMRRAL DELEVGTWFT GLRRSQSGGR AQTPIVQKRG ERYKISPIAD
     WTDRDVWQYL QAHDLPYHPL WEQGYVSIGD FHTTRRWEPG MREEDTRFFG LKRECGIHED
     I