ID   CYSG_PSESM              Reviewed;         464 AA.
AC   Q87ZT0;
DT   29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   16-JUN-2009, entry version 40.
DE   RecName: Full=Siroheme synthase;
DE   Includes:
DE     RecName: Full=Uroporphyrinogen-III C-methyltransferase;
DE              Short=Urogen III methylase;
DE              EC=2.1.1.107;
DE     AltName: Full=SUMT;
DE     AltName: Full=Uroporphyrinogen III methylase;
DE              Short=UROM;
DE   Includes:
DE     RecName: Full=Precorrin-2 dehydrogenase;
DE              EC=1.3.1.76;
DE   Includes:
DE     RecName: Full=Sirohydrochlorin ferrochelatase;
DE              EC=4.99.1.4;
GN   Name=cysG; Synonyms=pspTO3344; OrderedLocusNames=PSPTO_3344;
OS   Pseudomonas syringae pv. tomato.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=323;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DC3000;
RX   MEDLINE=22834015; PubMed=12928499; DOI=10.1073/pnas.1731982100;
RA   Buell C.R., Joardar V., Lindeberg M., Selengut J., Paulsen I.T.,
RA   Gwinn M.L., Dodson R.J., DeBoy R.T., Durkin A.S., Kolonay J.F.,
RA   Madupu R., Daugherty S.C., Brinkac L.M., Beanan M.J., Haft D.H.,
RA   Nelson W.C., Davidsen T.M., Zafar N., Zhou L., Liu J., Yuan Q.,
RA   Khouri H.M., Fedorova N.B., Tran B., Russell D., Berry K.J.,
RA   Utterback T.R., Van Aken S.E., Feldblyum T.V., D'Ascenzo M.,
RA   Deng W.-L., Ramos A.R., Alfano J.R., Cartinhour S., Chatterjee A.K.,
RA   Delaney T.P., Lazarowitz S.G., Martin G.B., Schneider D.J., Tang X.,
RA   Bender C.L., White O., Fraser C.M., Collmer A.;
RT   "The complete genome sequence of the Arabidopsis and tomato pathogen
RT   Pseudomonas syringae pv. tomato DC3000.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:10181-10186(2003).
CC   -!- FUNCTION: Multifunctional enzyme that catalyzes the SAM-dependent
CC       methylation of uroporphyrinogen III at position C-2 and C-7 to
CC       form precorrin-2 and then position C-12 or C-18 to form
CC       trimethylpyrrocorphin 2. It also catalyzes the conversion of
CC       precorrin-2 into siroheme. This reaction consists of the NAD-
CC       dependent oxidation of precorrin-2 into sirohydrochlorin and its
CC       subsequent ferrochelation into siroheme (By similarity).
CC   -!- CATALYTIC ACTIVITY: S-adenosyl-L-methionine + uroporphyrinogen III
CC       = S-adenosyl-L-homocysteine + precorrin-1.
CC   -!- CATALYTIC ACTIVITY: S-adenosyl-L-methionine + precorrin-1 = S-
CC       adenosyl-L-homocysteine + precorrin-2.
CC   -!- CATALYTIC ACTIVITY: Precorrin-2 + NAD(+) = sirohydrochlorin +
CC       NADH.
CC   -!- CATALYTIC ACTIVITY: Siroheme + 2 H(+) = sirohydrochlorin + Fe(2+).
CC   -!- PATHWAY: Cofactor biosynthesis; adenosylcobalamin biosynthesis;
CC       precorrin-2 from uroporphyrinogen III: step 1/1.
CC   -!- PATHWAY: Cofactor biosynthesis; adenosylcobalamin biosynthesis;
CC       sirohydrochlorin from precorrin-2: step 1/1.
CC   -!- PATHWAY: Porphyrin metabolism; siroheme biosynthesis; precorrin-2
CC       from uroporphyrinogen III: step 1/1.
CC   -!- PATHWAY: Porphyrin metabolism; siroheme biosynthesis; siroheme
CC       from sirohydrochlorin: step 1/1.
CC   -!- PATHWAY: Porphyrin metabolism; siroheme biosynthesis;
CC       sirohydrochlorin from precorrin-2: step 1/1.
CC   -!- SIMILARITY: Belongs to the precorrin methyltransferase family.
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DR   EMBL; AE016853; AAO56822.1; -; Genomic_DNA.
DR   RefSeq; NP_793127.1; -.
DR   HSSP; P25924; 1PJT.
DR   GeneID; 1185003; -.
DR   GenomeReviews; AE016853_GR; PSPTO_3344.
DR   KEGG; pst:PSPTO_3344; -.
DR   NMPDR; fig|223283.1.peg.3265; -.
DR   TIGR; PSPTO3344; -.
DR   HOGENOM; Q87ZT0; -.
DR   OMA; Q87ZT0; DYAQSAV.
DR   BioCyc; PSYR223283:PSPTO_3344-MON; -.
DR   GO; GO:0005488; F:binding; IEA:InterPro.
DR   GO; GO:0043115; F:precorrin-2 dehydrogenase activity; IEA:HAMAP.
DR   GO; GO:0051266; F:sirohydrochlorin ferrochelatase activity; IEA:EC.
DR   GO; GO:0004851; F:uroporphyrin-III C-methyltransferase activity; IEA:HAMAP.
DR   GO; GO:0009236; P:cobalamin biosynthetic process; IEA:HAMAP.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
DR   GO; GO:0019354; P:siroheme biosynthetic process; IEA:HAMAP.
DR   HAMAP; MF_01646; -; 1.
DR   InterPro; IPR000878; 4pyrrol_Mease.
DR   InterPro; IPR014777; 4pyrrole_Mease_sub1.
DR   InterPro; IPR014776; 4pyrrole_Mease_sub2.
DR   InterPro; IPR006366; CobA_cysG_C.
DR   InterPro; IPR016040; NAD(P)-bd_dom.
DR   InterPro; IPR019478; Sirohaem_synthase_dimer_dom.
DR   InterPro; IPR006367; Sirohaem_synthase_N.
DR   InterPro; IPR003043; Uropor_MeTrfase_CS.
DR   Gene3D; G3DSA:3.40.1010.10; 4pyrrole_Mease_sub1; 1.
DR   Gene3D; G3DSA:3.30.950.10; 4pyrrole_Mease_sub2; 1.
DR   Gene3D; G3DSA:3.40.50.720; NAD(P)-bd; 1.
DR   Pfam; PF10414; CysG_dimeriser; 1.
DR   Pfam; PF00590; TP_methylase; 1.
DR   TIGRFAMs; TIGR01469; cobA_cysG_Cterm; 1.
DR   TIGRFAMs; TIGR01470; cysG_Nterm; 1.
DR   PROSITE; PS00839; SUMT_1; FALSE_NEG.
DR   PROSITE; PS00840; SUMT_2; 1.
PE   3: Inferred from homology;
KW   Cobalamin biosynthesis; Complete proteome; Lyase; Methyltransferase;
KW   Multifunctional enzyme; NAD; Oxidoreductase; Porphyrin biosynthesis;
KW   S-adenosyl-L-methionine; Transferase.
FT   CHAIN         1    464       Siroheme synthase.
FT                                /FTId=PRO_0000330545.
FT   REGION      218    460       Uroporphyrinogen-III C-methyltransferase.
SQ   SEQUENCE   464 AA;  49941 MW;  037FFCE38EC15B01 CRC64;
     MEFLPLFHNL RGSRVLVVGG GEIALRKSRL IADAGAVLRV VAPEIETQLR ELVAHSGGEL
     ILRGYSESDL DGCVLIIAAT DDEPLNAQVS RDARLRCVPV NVVDAPALCT VIFPAIVDRS
     PLVIAVSSGG DAPVLARLIR AKLETWIPSS YGQLAGLAAR FRNQVKGLLP NVQQRRAFWE
     EVFQGAIADR QLAGQGAEAE RLLIAKIAGE PPAQTGEVYL VGAGPGDPDL LTFRALRLMQ
     QADVVLYDRL VAPTILDLCR RDAERVYVGK RRAEHAVPQE QINQQLVALA KQGKRVVRLK
     GGDPFIFGRG GEEIEELAAH GIPFQVVPGI TAASGCAAYA GIPLTHRDHA QSVRFITGHL
     KNGTTDLPWS DLVAPAQTLV FYMGLIGLPV ICAELIKHGR SADTPAALVQ QGTTVNQRVF
     TGTLANLPQL VAEHEVHAPT LVIIGEVVKL REKLAWFEGA QATL
//