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CYSH_XANOM
ID   CYSH_XANOM              Reviewed;         241 AA.
AC   Q2P0H1;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   07-FEB-2006, sequence version 1.
DT   25-MAY-2022, entry version 90.
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=XOO3201;
OS   Xanthomonas oryzae pv. oryzae (strain MAFF 311018).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=342109;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MAFF 311018;
RA   Ochiai H., Inoue Y., Takeya M., Sasaki A., Kaku H.;
RT   "Genome sequence of Xanthomonas oryzae pv. oryzae suggests contribution of
RT   large numbers of effector genes and insertion sequences to its race
RT   diversity.";
RL   Jpn. Agric. Res. Q. 39:275-287(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; AP008229; BAE69956.1; -; Genomic_DNA.
DR   RefSeq; WP_011259873.1; NC_007705.1.
DR   AlphaFoldDB; Q2P0H1; -.
DR   SMR; Q2P0H1; -.
DR   KEGG; xom:XOO3201; -.
DR   HOGENOM; CLU_044089_3_0_6; -.
DR   OMA; PIARWTQ; -.
DR   UniPathway; UPA00140; UER00206.
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_1000008946"
FT   ACT_SITE        235
FT                   /note="Nucleophile; cysteine thiosulfonate intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00063"
SQ   SEQUENCE   241 AA;  27660 MW;  94931F3293593392 CRC64;
     MTALPAASIT SSALDDLDAL NAQLEGLRAD ERVAWALQHG PQDAALSSSF GAQSAVTLHL
     LSQQRPDIPV ILIDTGYLFP ETYRFADALT ERLKLNLKVY RPLVSRAWME ARHGRLWEQG
     MVGIDQYNNL RKVEPMRRAL DELNVGTWFT GLRRSQSGGR AQTPIVQKRG ERYKISPIAD
     WTDRDVWQYL QAHELPYHPL WEQGYVSIGD FHTTRRWEPG MREEDTRFFG LKRECGIHED
     I
 
 
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