CYSG_XYLFA
ID CYSG_XYLFA Reviewed; 476 AA.
AC Q9PF46;
DT 29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2000, sequence version 1.
DT 03-AUG-2022, entry version 117.
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=XF_0832;
OS Xylella fastidiosa (strain 9a5c).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC Xanthomonadaceae; Xylella.
OX NCBI_TaxID=160492;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=9a5c;
RX PubMed=10910347; DOI=10.1038/35018003;
RA Simpson A.J.G., Reinach F.C., Arruda P., Abreu F.A., Acencio M.,
RA Alvarenga R., Alves L.M.C., Araya J.E., Baia G.S., Baptista C.S.,
RA Barros M.H., Bonaccorsi E.D., Bordin S., Bove J.M., Briones M.R.S.,
RA Bueno M.R.P., Camargo A.A., Camargo L.E.A., Carraro D.M., Carrer H.,
RA Colauto N.B., Colombo C., Costa F.F., Costa M.C.R., Costa-Neto C.M.,
RA Coutinho L.L., Cristofani M., Dias-Neto E., Docena C., El-Dorry H.,
RA Facincani A.P., Ferreira A.J.S., Ferreira V.C.A., Ferro J.A., Fraga J.S.,
RA Franca S.C., Franco M.C., Frohme M., Furlan L.R., Garnier M., Goldman G.H.,
RA Goldman M.H.S., Gomes S.L., Gruber A., Ho P.L., Hoheisel J.D.,
RA Junqueira M.L., Kemper E.L., Kitajima J.P., Krieger J.E., Kuramae E.E.,
RA Laigret F., Lambais M.R., Leite L.C.C., Lemos E.G.M., Lemos M.V.F.,
RA Lopes S.A., Lopes C.R., Machado J.A., Machado M.A., Madeira A.M.B.N.,
RA Madeira H.M.F., Marino C.L., Marques M.V., Martins E.A.L., Martins E.M.F.,
RA Matsukuma A.Y., Menck C.F.M., Miracca E.C., Miyaki C.Y.,
RA Monteiro-Vitorello C.B., Moon D.H., Nagai M.A., Nascimento A.L.T.O.,
RA Netto L.E.S., Nhani A. Jr., Nobrega F.G., Nunes L.R., Oliveira M.A.,
RA de Oliveira M.C., de Oliveira R.C., Palmieri D.A., Paris A., Peixoto B.R.,
RA Pereira G.A.G., Pereira H.A. Jr., Pesquero J.B., Quaggio R.B.,
RA Roberto P.G., Rodrigues V., de Rosa A.J.M., de Rosa V.E. Jr., de Sa R.G.,
RA Santelli R.V., Sawasaki H.E., da Silva A.C.R., da Silva A.M.,
RA da Silva F.R., Silva W.A. Jr., da Silveira J.F., Silvestri M.L.Z.,
RA Siqueira W.J., de Souza A.A., de Souza A.P., Terenzi M.F., Truffi D.,
RA Tsai S.M., Tsuhako M.H., Vallada H., Van Sluys M.A., Verjovski-Almeida S.,
RA Vettore A.L., Zago M.A., Zatz M., Meidanis J., Setubal J.C.;
RT "The genome sequence of the plant pathogen Xylella fastidiosa.";
RL Nature 406:151-159(2000).
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; AE003849; AAF83642.1; -; Genomic_DNA.
DR PIR; E82758; E82758.
DR AlphaFoldDB; Q9PF46; -.
DR SMR; Q9PF46; -.
DR STRING; 160492.XF_0832; -.
DR EnsemblBacteria; AAF83642; AAF83642; XF_0832.
DR KEGG; xfa:XF_0832; -.
DR eggNOG; COG0007; Bacteria.
DR eggNOG; COG1648; Bacteria.
DR HOGENOM; CLU_011276_2_1_6; -.
DR OMA; KMTVVVY; -.
DR UniPathway; UPA00148; UER00211.
DR UniPathway; UPA00148; UER00222.
DR UniPathway; UPA00262; UER00211.
DR UniPathway; UPA00262; UER00222.
DR UniPathway; UPA00262; UER00376.
DR Proteomes; UP000000812; 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; 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..476
FT /note="Siroheme synthase"
FT /id="PRO_0000330568"
FT REGION 1..207
FT /note="Precorrin-2 dehydrogenase /sirohydrochlorin
FT ferrochelatase"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT REGION 220..476
FT /note="Uroporphyrinogen-III C-methyltransferase"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT ACT_SITE 252
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT ACT_SITE 274
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT BINDING 25..26
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT BINDING 46..47
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT BINDING 305..307
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT BINDING 310
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT BINDING 335..336
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT BINDING 387
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT BINDING 416
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
FT MOD_RES 132
FT /note="Phosphoserine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01646"
SQ SEQUENCE 476 AA; 51598 MW; 3F8FDB589B8FAAF2 CRC64;
MTANVLFPLF ANLHDRAVLV VGGGKVAERK TEALLKVGAL PIIGAPSLTA SLQHWAETGR
ITWRQGTFEN SWLQEDIWLV IAATDQPEVN HAAARAAHAQ RLFVNVVDDI ALSNVQVPAV
VERGPLRIAI SSGGGAPMVA RYLRQQLESL IDDSWGRLTT LFAQRRDTIR ARYPNIEARR
RFFETQLTGP LQRLLRKQRH AEAEAVLEAA LAETPPTGSG SVTLVGAGAG DAGLLTLNAL
RALNEADIIL YDRLVSDTVL QVARRDAEQI EVGKSATGHS VRQEDIHSLM LQHARAGQRV
VRLKGGDPFV FGRGGEELEF LRTHNIPYEV IPGITAALAC AAYAGIPLTH RDHAQSLCLI
TAHCQSSLDT LDWAALAQER QTLAFYMGVA GLPTIQQRLC EAGRAETTPF ALIENGARAQ
QRVLTGTLKT LAHTAQTYAV RPPALLILGE VTTLAEHLHW FGTAPLSAPC PPALIL
