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CYSG_EDWI9
ID   CYSG_EDWI9              Reviewed;         461 AA.
AC   C5BGP8;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   28-JUL-2009, sequence version 1.
DT   03-AUG-2022, entry version 88.
DE   RecName: Full=Siroheme synthase {ECO:0000255|HAMAP-Rule:MF_01646};
DE   Includes:
DE     RecName: Full=Uroporphyrinogen-III C-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01646};
DE              Short=Urogen III methylase {ECO:0000255|HAMAP-Rule:MF_01646};
DE              EC=2.1.1.107 {ECO:0000255|HAMAP-Rule:MF_01646};
DE     AltName: Full=SUMT {ECO:0000255|HAMAP-Rule:MF_01646};
DE     AltName: Full=Uroporphyrinogen III methylase {ECO:0000255|HAMAP-Rule:MF_01646};
DE              Short=UROM {ECO:0000255|HAMAP-Rule:MF_01646};
DE   Includes:
DE     RecName: Full=Precorrin-2 dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01646};
DE              EC=1.3.1.76 {ECO:0000255|HAMAP-Rule:MF_01646};
DE   Includes:
DE     RecName: Full=Sirohydrochlorin ferrochelatase {ECO:0000255|HAMAP-Rule:MF_01646};
DE              EC=4.99.1.4 {ECO:0000255|HAMAP-Rule:MF_01646};
GN   Name=cysG {ECO:0000255|HAMAP-Rule:MF_01646}; OrderedLocusNames=NT01EI_3617;
OS   Edwardsiella ictaluri (strain 93-146).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Hafniaceae; Edwardsiella.
OX   NCBI_TaxID=634503;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=93-146;
RA   Williams M.L., Gillaspy A.F., Dyer D.W., Thune R.L., Waldbieser G.C.,
RA   Schuster S.C., Gipson J., Zaitshik J., Landry C., Lawrence M.L.;
RT   "Complete genome sequence of Edwardsiella ictaluri 93-146.";
RL   Submitted (MAR-2009) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Multifunctional enzyme that catalyzes the SAM-dependent
CC       methylations of uroporphyrinogen III at position C-2 and C-7 to form
CC       precorrin-2 via precorrin-1. Then it catalyzes the NAD-dependent ring
CC       dehydrogenation of precorrin-2 to yield sirohydrochlorin. Finally, it
CC       catalyzes the ferrochelation of sirohydrochlorin to yield siroheme.
CC       {ECO:0000255|HAMAP-Rule:MF_01646}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 S-adenosyl-L-methionine + uroporphyrinogen III = H(+) +
CC         precorrin-2 + 2 S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:32459,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:57308, ChEBI:CHEBI:57856,
CC         ChEBI:CHEBI:58827, ChEBI:CHEBI:59789; EC=2.1.1.107;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01646};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=NAD(+) + precorrin-2 = 2 H(+) + NADH + sirohydrochlorin;
CC         Xref=Rhea:RHEA:15613, ChEBI:CHEBI:15378, ChEBI:CHEBI:57540,
CC         ChEBI:CHEBI:57945, ChEBI:CHEBI:58351, ChEBI:CHEBI:58827; EC=1.3.1.76;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01646};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 H(+) + siroheme = Fe(2+) + sirohydrochlorin;
CC         Xref=Rhea:RHEA:24360, ChEBI:CHEBI:15378, ChEBI:CHEBI:29033,
CC         ChEBI:CHEBI:58351, ChEBI:CHEBI:60052; EC=4.99.1.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01646};
CC   -!- PATHWAY: Cofactor biosynthesis; adenosylcobalamin biosynthesis;
CC       precorrin-2 from uroporphyrinogen III: step 1/1. {ECO:0000255|HAMAP-
CC       Rule:MF_01646}.
CC   -!- PATHWAY: Cofactor biosynthesis; adenosylcobalamin biosynthesis;
CC       sirohydrochlorin from precorrin-2: step 1/1. {ECO:0000255|HAMAP-
CC       Rule:MF_01646}.
CC   -!- PATHWAY: Porphyrin-containing compound metabolism; siroheme
CC       biosynthesis; precorrin-2 from uroporphyrinogen III: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_01646}.
CC   -!- PATHWAY: Porphyrin-containing compound metabolism; siroheme
CC       biosynthesis; siroheme from sirohydrochlorin: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_01646}.
CC   -!- PATHWAY: Porphyrin-containing compound metabolism; siroheme
CC       biosynthesis; sirohydrochlorin from precorrin-2: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_01646}.
CC   -!- SIMILARITY: In the N-terminal section; belongs to the precorrin-2
CC       dehydrogenase / sirohydrochlorin ferrochelatase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01646}.
CC   -!- SIMILARITY: In the C-terminal section; belongs to the precorrin
CC       methyltransferase family. {ECO:0000255|HAMAP-Rule:MF_01646}.
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DR   EMBL; CP001600; ACR70745.1; -; Genomic_DNA.
DR   RefSeq; WP_015872786.1; NC_012779.2.
DR   AlphaFoldDB; C5BGP8; -.
DR   SMR; C5BGP8; -.
DR   STRING; 67780.B6E78_09745; -.
DR   EnsemblBacteria; ACR70745; ACR70745; NT01EI_3617.
DR   GeneID; 7961438; -.
DR   KEGG; eic:NT01EI_3617; -.
DR   PATRIC; fig|634503.3.peg.3224; -.
DR   HOGENOM; CLU_011276_2_0_6; -.
DR   OMA; GRFMAQE; -.
DR   OrthoDB; 1185397at2; -.
DR   UniPathway; UPA00148; UER00211.
DR   UniPathway; UPA00148; UER00222.
DR   UniPathway; UPA00262; UER00211.
DR   UniPathway; UPA00262; UER00222.
DR   UniPathway; UPA00262; UER00376.
DR   Proteomes; UP000001485; Chromosome.
DR   GO; GO:0051287; F:NAD binding; IEA:InterPro.
DR   GO; GO:0043115; F:precorrin-2 dehydrogenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0051266; F:sirohydrochlorin ferrochelatase activity; IEA:UniProtKB-EC.
DR   GO; GO:0004851; F:uroporphyrin-III C-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009236; P:cobalamin biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR   GO; GO:0019354; P:siroheme biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd11642; SUMT; 1.
DR   Gene3D; 1.10.8.210; -; 1.
DR   Gene3D; 3.30.950.10; -; 1.
DR   Gene3D; 3.40.1010.10; -; 1.
DR   HAMAP; MF_01646; Siroheme_synth; 1.
DR   InterPro; IPR000878; 4pyrrol_Mease.
DR   InterPro; IPR035996; 4pyrrol_Methylase_sf.
DR   InterPro; IPR014777; 4pyrrole_Mease_sub1.
DR   InterPro; IPR014776; 4pyrrole_Mease_sub2.
DR   InterPro; IPR006366; CobA/CysG_C.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   InterPro; IPR037115; Sirohaem_synt_dimer_dom_sf.
DR   InterPro; IPR012409; Sirohaem_synth.
DR   InterPro; IPR028281; Sirohaem_synthase_central.
DR   InterPro; IPR019478; Sirohaem_synthase_dimer_dom.
DR   InterPro; IPR006367; Sirohaem_synthase_N.
DR   InterPro; IPR003043; Uropor_MeTrfase_CS.
DR   Pfam; PF10414; CysG_dimeriser; 1.
DR   Pfam; PF14824; Sirohm_synth_M; 1.
DR   Pfam; PF00590; TP_methylase; 1.
DR   PIRSF; PIRSF036426; Sirohaem_synth; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
DR   SUPFAM; SSF53790; SSF53790; 1.
DR   TIGRFAMs; TIGR01469; cobA_cysG_Cterm; 1.
DR   TIGRFAMs; TIGR01470; cysG_Nterm; 1.
DR   PROSITE; PS00839; SUMT_1; 1.
DR   PROSITE; PS00840; SUMT_2; 1.
PE   3: Inferred from homology;
KW   Cobalamin biosynthesis; Lyase; Methyltransferase; Multifunctional enzyme;
KW   NAD; Oxidoreductase; Phosphoprotein; Porphyrin biosynthesis;
KW   Reference proteome; S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..461
FT                   /note="Siroheme synthase"
FT                   /id="PRO_1000215846"
FT   REGION          1..204
FT                   /note="Precorrin-2 dehydrogenase /sirohydrochlorin
FT                   ferrochelatase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   REGION          216..461
FT                   /note="Uroporphyrinogen-III C-methyltransferase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   ACT_SITE        248
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   ACT_SITE        270
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   BINDING         22..23
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   BINDING         43..44
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   BINDING         225
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   BINDING         301..303
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   BINDING         306
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   BINDING         331..332
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   BINDING         382
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   BINDING         411
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT   MOD_RES         128
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
SQ   SEQUENCE   461 AA;  49998 MW;  2C1300882126D4A8 CRC64;
     MDYFPIFCQL RTKPCLLVGG GEVAERKARL LMEAGAILTV NAGRFTPQFE QWQRDGQLTL
     IAGDFDPALL TGKWLAIAAT DDSRVNQQVL AQSEARCIFC NVVDAAQQTG FIMPSIVDRS
     PLMVAVSSGG SAPVLARILR EKLEALLPQH LGQVAHMAGH LRQRVKAHFP TLSLRRRFWE
     RLFAQDRLAQ SLANGDTTQA QQQVDALFSA APMDRGEVTL VGAGPGDAGL LTLKGLQQIQ
     QADVIIYDRL VSDEVMSLVR RDATRIFVGK HAGHHCVPQE EINQTLLDHA REGKRVVRLK
     GGDPFIFGRG GEELEALAAA GIAFSVVPGI TAASGCSAYS GIPLTHRDHA QSVRLVTGHT
     RQDGQLDWSC LAAAGQTLVF YMGLSQAATI QQRLLQHGML PDTPIALVEN GTTIRQRVVS
     GTLTQLETLA TRVASPSLII VGDVVTLRPR LNWFRCEAAS A
 
 
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