ID   Q8PHC8_XANAC            Unreviewed;       568 AA.
AC   Q8PHC8;
DT   01-OCT-2002, integrated into UniProtKB/TrEMBL.
DT   01-OCT-2002, sequence version 1.
DT   22-SEP-2009, entry version 41.
DE   SubName: Full=NADPH-sulfite reductase iron-sulfur protein;
GN   Name=cysI; OrderedLocusNames=XAC3331;
OS   Xanthomonas axonopodis pv. citri (Citrus canker).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=92829;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=306;
RX   MEDLINE=22022145; PubMed=12024217; DOI=10.1038/417459a;
RA   da Silva A.C.R., Ferro J.A., Reinach F.C., Farah C.S., Furlan L.R.,
RA   Quaggio R.B., Monteiro-Vitorello C.B., Van Sluys M.A.,
RA   Almeida N.F. Jr., Alves L.M.C., do Amaral A.M., Bertolini M.C.,
RA   Camargo L.E.A., Camarotte G., Cannavan F., Cardozo J., Chambergo F.,
RA   Ciapina L.P., Cicarelli R.M.B., Coutinho L.L., Cursino-Santos J.R.,
RA   El-Dorry H., Faria J.B., Ferreira A.J.S., Ferreira R.C.C.,
RA   Ferro M.I.T., Formighieri E.F., Franco M.C., Greggio C.C., Gruber A.,
RA   Katsuyama A.M., Kishi L.T., Leite R.P., Lemos E.G.M., Lemos M.V.F.,
RA   Locali E.C., Machado M.A., Madeira A.M.B.N., Martinez-Rossi N.M.,
RA   Martins E.C., Meidanis J., Menck C.F.M., Miyaki C.Y., Moon D.H.,
RA   Moreira L.M., Novo M.T.M., Okura V.K., Oliveira M.C., Oliveira V.R.,
RA   Pereira H.A., Rossi A., Sena J.A.D., Silva C., de Souza R.F.,
RA   Spinola L.A.F., Takita M.A., Tamura R.E., Teixeira E.C., Tezza R.I.D.,
RA   Trindade dos Santos M., Truffi D., Tsai S.M., White F.F.,
RA   Setubal J.C., Kitajima J.P.;
RT   "Comparison of the genomes of two Xanthomonas pathogens with differing
RT   host specificities.";
RL   Nature 417:459-463(2002).
CC   -!- FUNCTION: This enzyme catalyzes the 6-electron reduction of
CC       sulfite to sulfide. This is one of several activities required for
CC       the biosynthesis of L-cysteine from sulfate (By similarity).
CC   -!- CATALYTIC ACTIVITY: H(2)S + 3 NADP(+) + 3 H(2)O = sulfite + 3
CC       NADPH.
CC   -!- SUBUNIT: Alpha(8)-beta(4). The alpha component is a flavoprotein,
CC       the beta component is a hemoprotein (By similarity).
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DR   EMBL; AE008923; AAM38174.1; -; Genomic_DNA.
DR   RefSeq; NP_643638.1; -.
DR   HSSP; P17846; 7GEP.
DR   GeneID; 1157402; -.
DR   GenomeReviews; AE008923_GR; XAC3331.
DR   NMPDR; fig|190486.1.peg.3282; -.
DR   HOGENOM; Q8PHC8; -.
DR   OMA; Q8PHC8; TRQAFQM.
DR   BioCyc; XAXO190486:XAC3331-MON; -.
DR   GO; GO:0009337; C:sulfite reductase complex (NADPH); IEA:InterPro.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0009055; F:electron carrier activity; IEA:InterPro.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0050661; F:NADP or NADPH binding; IEA:InterPro.
DR   GO; GO:0004783; F:sulfite reductase (NADPH) activity; IEA:InterPro.
DR   GO; GO:0019344; P:cysteine biosynthetic process; IEA:UniProtKB-KW.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
DR   InterPro; IPR011786; CysI.
DR   InterPro; IPR005117; NiRdtase/SiRdtase_haem-b_fer.
DR   InterPro; IPR006067; NO2/SO3_Rdtase_4Fe4S.
DR   InterPro; IPR006066; NO2/SO3_Rdtase_FeS/sirohaem_BS.
DR   Pfam; PF01077; NIR_SIR; 1.
DR   Pfam; PF03460; NIR_SIR_ferr; 2.
DR   PRINTS; PR00397; SIROHAEM.
DR   TIGRFAMs; TIGR02041; CysI; 1.
DR   PROSITE; PS00365; NIR_SIR; 1.
PE   3: Inferred from homology;
KW   4Fe-4S; Amino-acid biosynthesis; Complete proteome;
KW   Cysteine biosynthesis; Heme; Iron; Iron-sulfur; Metal-binding; NADP;
KW   Oxidoreductase.
SQ   SEQUENCE   568 AA;  62418 MW;  4E86EDBFF11AE961 CRC64;
     MSHSVEDIKS ESRRLRGSLE QSLADAVTGA LREDDQTLIK YHGSYQQDDR DIRDERRRQK
     LEPAYQFMIR TRTPGGVITP TQWLALDGIA TRYANHSLRI TTRQAFQFHG VIKRELKATM
     QAINATLIDT LAACGDVNRN VQVAANPLLS QAHATLYADA ARVSEHLLPN TRAYYEIWLD
     EERVSGSGSE DEPIYGERYL PRKFKIGFAA PPLNDVDVFA NDLGFIAILR DGQLLGYNVS
     IGGGMGASHG DAETWPRVAN VIGFVTREQL LDIATAVVTT QRDFGNRAVR KRARFKYTID
     DHGLDTIVAE IARRAGFALQ PAQPFAFDHN GDRYGWVEGE DGLWHLTLSL PAGRIADTDT
     AAHLSGLRAI AQLNVGEFRM TPNQNLVIAG VLASERARVD ALVAHYGLDA GNQSATALAR
     GAMACVALPT CGLAMAEAER YLPDFGAALQ PLLQQHGLAE TPIVLRLSGC PNGCSRPYLA
     EIALVGKAPG RYNLMLGGDR RGQRLNTLYR ENITEPEILA ALEPLLARYA AERDHANDEG
     FGDFLHRAGV IALPPYPTHR RLDLELLA
//