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Protein

Siroheme synthase

Gene

cysG

Organism
Yersinia pestis bv. Antiqua (strain Antiqua)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Protein inferred from homologyi

Functioni

Multifunctional enzyme that catalyzes the SAM-dependent methylations of uroporphyrinogen III at position C-2 and C-7 to form precorrin-2 via precorrin-1. Then it catalyzes the NAD-dependent ring dehydrogenation of precorrin-2 to yield sirohydrochlorin. Finally, it catalyzes the ferrochelation of sirohydrochlorin to yield siroheme.UniRule annotation

Catalytic activityi

S-adenosyl-L-methionine + uroporphyrinogen III = S-adenosyl-L-homocysteine + precorrin-1.UniRule annotation
S-adenosyl-L-methionine + precorrin-1 = S-adenosyl-L-homocysteine + precorrin-2.UniRule annotation
Precorrin-2 + NAD+ = sirohydrochlorin + NADH.UniRule annotation
Siroheme + 2 H+ = sirohydrochlorin + Fe2+.UniRule annotation

Pathway: adenosylcobalamin biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes precorrin-2 from uroporphyrinogen III.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Siroheme synthase (cysG), Siroheme synthase (cysG)
This subpathway is part of the pathway adenosylcobalamin biosynthesis, which is itself part of Cofactor biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes precorrin-2 from uroporphyrinogen III, the pathway adenosylcobalamin biosynthesis and in Cofactor biosynthesis.

Pathway: adenosylcobalamin biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes sirohydrochlorin from precorrin-2.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Siroheme synthase (cysG), Siroheme synthase (cysG)
This subpathway is part of the pathway adenosylcobalamin biosynthesis, which is itself part of Cofactor biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes sirohydrochlorin from precorrin-2, the pathway adenosylcobalamin biosynthesis and in Cofactor biosynthesis.

Pathway: siroheme biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes precorrin-2 from uroporphyrinogen III.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Siroheme synthase (cysG), Siroheme synthase (cysG)
This subpathway is part of the pathway siroheme biosynthesis, which is itself part of Porphyrin-containing compound metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes precorrin-2 from uroporphyrinogen III, the pathway siroheme biosynthesis and in Porphyrin-containing compound metabolism.

Pathway: siroheme biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes siroheme from sirohydrochlorin.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Siroheme synthase (cysG), Siroheme synthase (cysG)
This subpathway is part of the pathway siroheme biosynthesis, which is itself part of Porphyrin-containing compound metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes siroheme from sirohydrochlorin, the pathway siroheme biosynthesis and in Porphyrin-containing compound metabolism.

Pathway: siroheme biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes sirohydrochlorin from precorrin-2.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Siroheme synthase (cysG), Siroheme synthase (cysG)
This subpathway is part of the pathway siroheme biosynthesis, which is itself part of Porphyrin-containing compound metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes sirohydrochlorin from precorrin-2, the pathway siroheme biosynthesis and in Porphyrin-containing compound metabolism.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei222 – 2221S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation
Active sitei245 – 2451Proton acceptorUniRule annotation
Active sitei267 – 2671Proton donorUniRule annotation
Binding sitei303 – 3031S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation
Binding sitei379 – 3791S-adenosyl-L-methionine; via amide nitrogenUniRule annotation
Binding sitei408 – 4081S-adenosyl-L-methionine; via amide nitrogen and carbonyl oxygenUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi22 – 232NADUniRule annotation
Nucleotide bindingi43 – 442NADUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Lyase, Methyltransferase, Oxidoreductase, Transferase

Keywords - Biological processi

Cobalamin biosynthesis, Porphyrin biosynthesis

Keywords - Ligandi

NAD, S-adenosyl-L-methionine

Enzyme and pathway databases

BioCyciYPES360102:GHZU-3381-MONOMER.
UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.

Names & Taxonomyi

Protein namesi
Recommended name:
Siroheme synthaseUniRule annotation
Including the following 3 domains:
Uroporphyrinogen-III C-methyltransferaseUniRule annotation (EC:2.1.1.107UniRule annotation)
Short name:
Urogen III methylaseUniRule annotation
Alternative name(s):
SUMTUniRule annotation
Uroporphyrinogen III methylaseUniRule annotation
Short name:
UROMUniRule annotation
Precorrin-2 dehydrogenaseUniRule annotation (EC:1.3.1.76UniRule annotation)
Sirohydrochlorin ferrochelataseUniRule annotation (EC:4.99.1.4UniRule annotation)
Gene namesi
Name:cysGUniRule annotation
Ordered Locus Names:YPA_3311
OrganismiYersinia pestis bv. Antiqua (strain Antiqua)
Taxonomic identifieri360102 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeYersinia

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 470470Siroheme synthasePRO_0000330573Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei128 – 1281PhosphoserineUniRule annotation

Keywords - PTMi

Phosphoprotein

Structurei

3D structure databases

ProteinModelPortaliQ1C2P9.
SMRiQ1C2P9. Positions 1-453.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 201201precorrin-2 dehydrogenase / sirohydrochlorin ferrochelataseUniRule annotationAdd
BLAST
Regioni213 – 470258Uroporphyrinogen-III C-methyltransferaseUniRule annotationAdd
BLAST
Regioni298 – 3003S-adenosyl-L-methionine bindingUniRule annotation
Regioni328 – 3292S-adenosyl-L-methionine bindingUniRule annotation

Sequence similaritiesi

In the N-terminal section; belongs to the precorrin-2 dehydrogenase / sirohydrochlorin ferrochelatase family.UniRule annotation
In the C-terminal section; belongs to the precorrin methyltransferase family.UniRule annotation

Phylogenomic databases

eggNOGiCOG0007.
HOGENOMiHOG000290518.
KOiK02302.
OMAiQASFIMP.
OrthoDBiEOG6DRPFR.

Family and domain databases

Gene3Di1.10.8.210. 1 hit.
3.30.950.10. 1 hit.
3.40.1010.10. 1 hit.
3.40.50.720. 1 hit.
HAMAPiMF_01646. Siroheme_synth.
InterProiIPR000878. 4pyrrol_Mease.
IPR014777. 4pyrrole_Mease_sub1.
IPR014776. 4pyrrole_Mease_sub2.
IPR006366. CobA/CysG_C.
IPR016040. NAD(P)-bd_dom.
IPR012409. Sirohaem_synth.
IPR019478. Sirohaem_synthase_dimer_dom.
IPR006367. Sirohaem_synthase_N.
IPR003043. Uropor_MeTrfase_CS.
[Graphical view]
PfamiPF10414. CysG_dimeriser. 1 hit.
PF13241. NAD_binding_7. 1 hit.
PF00590. TP_methylase. 1 hit.
[Graphical view]
PIRSFiPIRSF036426. Sirohaem_synth. 1 hit.
SUPFAMiSSF53790. SSF53790. 1 hit.
TIGRFAMsiTIGR01469. cobA_cysG_Cterm. 1 hit.
TIGR01470. cysG_Nterm. 1 hit.
PROSITEiPS00839. SUMT_1. 1 hit.
PS00840. SUMT_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q1C2P9-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MDYFPIFCQL QHKACLLVGG GEIAERKARL LLDAGALVTV NACEFTPQFH
60 70 80 90 100
HWADQGQLSL ISGEFVPELL ADKWLVIAAT DQLSVNALVY QSANQQRIFC
110 120 130 140 150
NVVDDPKRTS FIMPSIIDRS PIMIAVSSGG KAPVLARLLR EKLEALLPQH
160 170 180 190 200
LGQLAGNLRQ RVKQHFTVMT ERRRFWEKLL THDRLAQSLA NNDHVQADQH
210 220 230 240 250
VEQLFSAPLT DRGEVVLVGA GPGDAGLLTL KGLQQIQQAD VVVYDRLVSD
260 270 280 290 300
EVMNLVRRDA ERIFVGKQSG HHCVPQEQIN QILLQQAQSG KRVVRLKGGD
310 320 330 340 350
PFIFGRGGEE LEELAGYGIP FSVVPGITAA SGCSAYSGIP LTHRDHAQSV
360 370 380 390 400
RLVTGHAKKE GQLDWANLAA EKQTLVFYMG LSQAGEIQQQ LIQHGMPATT
410 420 430 440 450
QVALVENGTS RHQRVVSGEL SQLALLSQQV SSPSLIIVGS VVSLREKLNW
460 470
FSSRHHDDQP KVTECVAHVG
Length:470
Mass (Da):51,664
Last modified:July 11, 2006 - v1
Checksum:iD28E9E9C1182F316
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000308 Genomic DNA. Translation: ABG15273.1.
RefSeqiWP_002208890.1. NC_008150.1.

Genome annotation databases

EnsemblBacteriaiABG15273; ABG15273; YPA_3311.
KEGGiypa:YPA_3311.
PATRICi18586488. VBIYerPes1796_4039.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000308 Genomic DNA. Translation: ABG15273.1.
RefSeqiWP_002208890.1. NC_008150.1.

3D structure databases

ProteinModelPortaliQ1C2P9.
SMRiQ1C2P9. Positions 1-453.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABG15273; ABG15273; YPA_3311.
KEGGiypa:YPA_3311.
PATRICi18586488. VBIYerPes1796_4039.

Phylogenomic databases

eggNOGiCOG0007.
HOGENOMiHOG000290518.
KOiK02302.
OMAiQASFIMP.
OrthoDBiEOG6DRPFR.

Enzyme and pathway databases

UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.
BioCyciYPES360102:GHZU-3381-MONOMER.

Family and domain databases

Gene3Di1.10.8.210. 1 hit.
3.30.950.10. 1 hit.
3.40.1010.10. 1 hit.
3.40.50.720. 1 hit.
HAMAPiMF_01646. Siroheme_synth.
InterProiIPR000878. 4pyrrol_Mease.
IPR014777. 4pyrrole_Mease_sub1.
IPR014776. 4pyrrole_Mease_sub2.
IPR006366. CobA/CysG_C.
IPR016040. NAD(P)-bd_dom.
IPR012409. Sirohaem_synth.
IPR019478. Sirohaem_synthase_dimer_dom.
IPR006367. Sirohaem_synthase_N.
IPR003043. Uropor_MeTrfase_CS.
[Graphical view]
PfamiPF10414. CysG_dimeriser. 1 hit.
PF13241. NAD_binding_7. 1 hit.
PF00590. TP_methylase. 1 hit.
[Graphical view]
PIRSFiPIRSF036426. Sirohaem_synth. 1 hit.
SUPFAMiSSF53790. SSF53790. 1 hit.
TIGRFAMsiTIGR01469. cobA_cysG_Cterm. 1 hit.
TIGR01470. cysG_Nterm. 1 hit.
PROSITEiPS00839. SUMT_1. 1 hit.
PS00840. SUMT_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Complete genome sequence of Yersinia pestis strains Antiqua and Nepal516: evidence of gene reduction in an emerging pathogen."
    Chain P.S.G., Hu P., Malfatti S.A., Radnedge L., Larimer F., Vergez L.M., Worsham P., Chu M.C., Andersen G.L.
    J. Bacteriol. 188:4453-4463(2006) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Antiqua.

Entry informationi

Entry nameiCYSG_YERPA
AccessioniPrimary (citable) accession number: Q1C2P9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: July 11, 2006
Last modified: June 24, 2015
This is version 70 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Multifunctional enzyme

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.