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Protein

Siroheme synthase 1

Gene

cysG1

Organism
Yersinia pseudotuberculosis serotype I (strain IP32953)
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

Pathwayi: 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 1 (cysG1), Siroheme synthase 2 (cysG2)
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.

Pathwayi: 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 1 (cysG1), Siroheme synthase 2 (cysG2)
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.

Pathwayi: 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 1 (cysG1), Siroheme synthase 2 (cysG2)
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.

Pathwayi: 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 1 (cysG1), Siroheme synthase 2 (cysG2)
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.

Pathwayi: 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 1 (cysG1), Siroheme synthase 2 (cysG2)
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)DescriptionActionsGraphical viewLength
Binding sitei224S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation1
Active sitei247Proton acceptorUniRule annotation1
Active sitei269Proton donorUniRule annotation1
Binding sitei305S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation1
Binding sitei382S-adenosyl-L-methionine; via amide nitrogenUniRule annotation1
Binding sitei411S-adenosyl-L-methionine; via amide nitrogen and carbonyl oxygenUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi22 – 23NADUniRule annotation2
Nucleotide bindingi43 – 44NADUniRule annotation2

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

UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.

Names & Taxonomyi

Protein namesi
Recommended name:
Siroheme synthase 1UniRule annotation
Including the following 3 domains:
Uroporphyrinogen-III C-methyltransferase 1UniRule annotation (EC:2.1.1.107UniRule annotation)
Short name:
Urogen III methylase 1UniRule annotation
Alternative name(s):
SUMT 1UniRule annotation
Uroporphyrinogen III methylase 1UniRule annotation
Short name:
UROM 1UniRule annotation
Precorrin-2 dehydrogenase 1UniRule annotation (EC:1.3.1.76UniRule annotation)
Sirohydrochlorin ferrochelatase 1UniRule annotation (EC:4.99.1.4UniRule annotation)
Gene namesi
Name:cysG1UniRule annotation
Ordered Locus Names:YPTB0764
OrganismiYersinia pseudotuberculosis serotype I (strain IP32953)
Taxonomic identifieri273123 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesYersiniaceaeYersinia
Proteomesi
  • UP000001011 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003305781 – 472Siroheme synthase 1Add BLAST472

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei128PhosphoserineUniRule annotation1

Keywords - PTMi

Phosphoprotein

Structurei

3D structure databases

ProteinModelPortaliQ66EC9.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni1 – 203precorrin-2 dehydrogenase / sirohydrochlorin ferrochelataseUniRule annotationAdd BLAST203
Regioni215 – 472Uroporphyrinogen-III C-methyltransferaseUniRule annotationAdd BLAST258
Regioni300 – 302S-adenosyl-L-methionine bindingUniRule annotation3
Regioni330 – 331S-adenosyl-L-methionine bindingUniRule annotation2

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

HOGENOMiHOG000290518.
KOiK02302.
OMAiLAWFQHT.

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. 1 hit.
InterProiIPR000878. 4pyrrol_Mease.
IPR014777. 4pyrrole_Mease_sub1.
IPR014776. 4pyrrole_Mease_sub2.
IPR006366. CobA/CysG_C.
IPR016040. NAD(P)-bd_dom.
IPR012409. Sirohaem_synth.
IPR028281. Sirohaem_synthase_central.
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.
PF14824. Sirohm_synth_M. 1 hit.
PF00590. TP_methylase. 1 hit.
[Graphical view]
PIRSFiPIRSF036426. Sirohaem_synth. 1 hit.
SUPFAMiSSF51735. SSF51735. 1 hit.
SSF53790. 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.

Q66EC9-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MDYLPLFADL KQRPVLIVGG GEVAARKIEL LHRAGAQVWV VAQTLSSELE
60 70 80 90 100
QQYQDGRIHW LAQDFLPEQL DNVFLVIAAT NDTVLNAAVF AAADQRCILA
110 120 130 140 150
NVVDDQPLCS FIFPSIVDRS PLVVAISSSG QAPVLARILR EKLEALLPTR
160 170 180 190 200
LSDMAAIAGR WRGRVKQHMA SMGERRRFWE HAFSGRFASL ISRGQLTEAE
210 220 230 240 250
NELQLSLEGQ HRALGEVALV GAGPGDAGLL TLRGLQVMQQ ADVVLYDHLV
260 270 280 290 300
SPEVLDLVRR DAERICVGKR AGAHSVTQEA TNQLLVTLAQ QGKRVVRLKG
310 320 330 340 350
GDPFIFGRGG EELQVVAQAG IPFQVVPGVT AAAGATAYAG IPLTHRDHAQ
360 370 380 390 400
SVTFITGHCR PDGDDLDWQA LARGRQTLAI YMGTVKAAAI SQQLIAHGRS
410 420 430 440 450
STTPVAVIGR GTRVDQQVLI GTLAQLESLA QQAPTPALLV IGEVVNLHHQ
460 470
IAWFGQQPQT ESAISPSVVN LA
Length:472
Mass (Da):50,874
Last modified:October 11, 2004 - v1
Checksum:i4BD7DB7E4BCF4F89
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BX936398 Genomic DNA. Translation: CAH20004.1.
RefSeqiWP_011191775.1. NZ_CP009712.1.

Genome annotation databases

EnsemblBacteriaiCAH20004; CAH20004; YPTB0764.
KEGGiypo:BZ17_1792.
yps:YPTB0764.
PATRICi18639828. VBIYerPse22266_1007.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BX936398 Genomic DNA. Translation: CAH20004.1.
RefSeqiWP_011191775.1. NZ_CP009712.1.

3D structure databases

ProteinModelPortaliQ66EC9.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiCAH20004; CAH20004; YPTB0764.
KEGGiypo:BZ17_1792.
yps:YPTB0764.
PATRICi18639828. VBIYerPse22266_1007.

Phylogenomic databases

HOGENOMiHOG000290518.
KOiK02302.
OMAiLAWFQHT.

Enzyme and pathway databases

UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.

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. 1 hit.
InterProiIPR000878. 4pyrrol_Mease.
IPR014777. 4pyrrole_Mease_sub1.
IPR014776. 4pyrrole_Mease_sub2.
IPR006366. CobA/CysG_C.
IPR016040. NAD(P)-bd_dom.
IPR012409. Sirohaem_synth.
IPR028281. Sirohaem_synthase_central.
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.
PF14824. Sirohm_synth_M. 1 hit.
PF00590. TP_methylase. 1 hit.
[Graphical view]
PIRSFiPIRSF036426. Sirohaem_synth. 1 hit.
SUPFAMiSSF51735. SSF51735. 1 hit.
SSF53790. 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...

Entry informationi

Entry nameiCYSG1_YERPS
AccessioniPrimary (citable) accession number: Q66EC9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: October 11, 2004
Last modified: November 2, 2016
This is version 83 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

Complete proteome, Multifunctional enzyme

Documents

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

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 one 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.