ID   CYSD_ECO55              Reviewed;         302 AA.
AC   B7LEH0;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   02-SEP-2026, entry version 76.
DE   RecName: Full=Sulfate adenylyltransferase subunit 2 {ECO:0000255|HAMAP-Rule:MF_00064};
DE            EC=2.7.7.4 {ECO:0000255|HAMAP-Rule:MF_00064};
DE   AltName: Full=ATP-sulfurylase small subunit {ECO:0000255|HAMAP-Rule:MF_00064};
DE   AltName: Full=Sulfate adenylate transferase {ECO:0000255|HAMAP-Rule:MF_00064};
DE            Short=SAT {ECO:0000255|HAMAP-Rule:MF_00064};
GN   Name=cysD {ECO:0000255|HAMAP-Rule:MF_00064};
GN   OrderedLocusNames=EC55989_3025;
OS   Escherichia coli (strain 55989 / EAEC).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Gammaproteobacteria;
OC   Enterobacterales; Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=585055;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=55989 / EAEC;
RX   PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA   Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA   Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA   Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA   Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA   Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA   Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA   Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT   "Organised genome dynamics in the Escherichia coli species results in
RT   highly diverse adaptive paths.";
RL   PLoS Genet. 5:E1000344-E1000344(2009).
CC   -!- FUNCTION: With CysN forms the ATP sulfurylase (ATPS) that catalyzes the
CC       adenylation of sulfate producing adenosine 5'-phosphosulfate (APS) and
CC       diphosphate, the first enzymatic step in sulfur assimilation pathway.
CC       APS synthesis involves the formation of a high-energy phosphoric-
CC       sulfuric acid anhydride bond driven by GTP hydrolysis by CysN coupled
CC       to ATP hydrolysis by CysD. {ECO:0000255|HAMAP-Rule:MF_00064}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=sulfate + ATP + H(+) = adenosine 5'-phosphosulfate +
CC         diphosphate; Xref=Rhea:RHEA:18133, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:16189, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:58243; EC=2.7.7.4; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00064};
CC   -!- PATHWAY: Sulfur metabolism; hydrogen sulfide biosynthesis; sulfite from
CC       sulfate: step 1/3. {ECO:0000255|HAMAP-Rule:MF_00064}.
CC   -!- SUBUNIT: Heterodimer composed of CysD, the smaller subunit, and CysN.
CC       {ECO:0000255|HAMAP-Rule:MF_00064}.
CC   -!- SIMILARITY: Belongs to the PAPS reductase family. CysD subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00064}.
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DR   EMBL; CU928145; CAU98907.1; -; Genomic_DNA.
DR   RefSeq; WP_000372108.1; NC_011748.1.
DR   AlphaFoldDB; B7LEH0; -.
DR   SMR; B7LEH0; -.
DR   GeneID; 93779254; -.
DR   KEGG; eck:EC55989_3025; -.
DR   HOGENOM; CLU_043026_0_0_6; -.
DR   UniPathway; UPA00140; UER00204.
DR   Proteomes; UP000000746; Chromosome.
DR   GO; GO:0004781; F:sulfate adenylyltransferase (ATP) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0070814; P:hydrogen sulfide biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0000103; P:sulfate assimilation; IEA:UniProtKB-UniRule.
DR   CDD; cd23946; Sulfate_adenylyltransferase_2; 1.
DR   FunFam; 3.40.50.620:FF:000002; Sulfate adenylyltransferase subunit 2; 1.
DR   Gene3D; 3.40.50.620; HUPs; 1.
DR   HAMAP; MF_00064; Sulf_adenylyltr_sub2; 1.
DR   InterPro; IPR002500; PAPS_reduct_dom.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   InterPro; IPR011784; SO4_adenylTrfase_ssu.
DR   InterPro; IPR050128; Sulfate_adenylyltrnsfr_sub2.
DR   NCBIfam; TIGR02039; CysD; 1.
DR   NCBIfam; NF003587; PRK05253.1; 1.
DR   NCBIfam; NF009214; PRK12563.1; 1.
DR   PANTHER; PTHR43196; SULFATE ADENYLYLTRANSFERASE SUBUNIT 2; 1.
DR   PANTHER; PTHR43196:SF1; SULFATE ADENYLYLTRANSFERASE SUBUNIT 2; 1.
DR   Pfam; PF01507; PAPS_reduct; 1.
DR   PIRSF; PIRSF002936; CysDAde_trans; 1.
DR   SUPFAM; SSF52402; Adenine nucleotide alpha hydrolases-like; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Nucleotide-binding; Nucleotidyltransferase;
KW   Reference proteome; Transferase.
FT   CHAIN           1..302
FT                   /note="Sulfate adenylyltransferase subunit 2"
FT                   /id="PRO_1000117940"
SQ   SEQUENCE   302 AA;  35188 MW;  A48881C0E5E086A1 CRC64;
     MDQIRLTHLR QLEAESIHII REVAAEFSNP VMLYSIGKDS SVMLHLARKA FYPGTLPFPL
     LHVDTGWKFR EMYEFRDRTA KAYGCELLVH KNPEGVAMGI NPFVHGSAKH TDIMKTEGLK
     QALNKYGFDA AFGGARRDEE KSRAKERIYS FRDRFHRWDP KNQRPELWHN YNGQINKGES
     IRVFPLSNWT EQDIWQYIWL ENIDIVPLYL AAERPVLERD GMLMMIDDNR IDLQPGEVIK
     KRMVRFRTLG CWPLTGAVES NAQTLPEIIE EMLVSTTSER QGRVIDRDQA GSMELKKRQG
     YF
//