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Protein

Siroheme synthase

Gene

cysG

Organism
Yersinia pestis
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

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

  1. NAD binding Source: InterPro
  2. precorrin-2 dehydrogenase activity Source: UniProtKB-HAMAP
  3. sirohydrochlorin ferrochelatase activity Source: UniProtKB-EC
  4. uroporphyrin-III C-methyltransferase activity Source: UniProtKB-HAMAP

GO - Biological processi

  1. cobalamin biosynthetic process Source: UniProtKB-HAMAP
  2. siroheme biosynthetic process Source: UniProtKB-HAMAP
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

BioCyciYPES214092:GKDD-158-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:YPO0158, y3941, YP_0160
OrganismiYersinia pestis
Taxonomic identifieri632 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeYersinia
ProteomesiUP000000815 Componenti: Chromosome UP000001019 Componenti: Chromosome UP000002490 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 470470Siroheme synthasePRO_0000330572Add
BLAST

Amino acid modifications

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

Keywords - PTMi

Phosphoprotein

Interactioni

Protein-protein interaction databases

STRINGi214092.YPO0158.

Structurei

3D structure databases

ProteinModelPortaliQ74Y23.
SMRiQ74Y23. 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.

Q74Y23-1 [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 5, 2004 - v1
Checksum:iD28E9E9C1182F316
GO

Sequence cautioni

The sequence AAM87485.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL590842 Genomic DNA. Translation: CAL18844.1.
AE009952 Genomic DNA. Translation: AAM87485.1. Different initiation.
AE017042 Genomic DNA. Translation: AAS60438.1.
PIRiAC0020.
RefSeqiNP_991561.1. NC_005810.1.
WP_002208890.1. NZ_KN150724.1.
YP_002345244.1. NC_003143.1.

Genome annotation databases

EnsemblBacteriaiAAM87485; AAM87485; y3941.
AAS60438; AAS60438; YP_0160.
GeneIDi1173004.
KEGGiype:YPO0158.
ypm:YP_0160.
PATRICi18589339. VBIYerPes7843_0409.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL590842 Genomic DNA. Translation: CAL18844.1.
AE009952 Genomic DNA. Translation: AAM87485.1. Different initiation.
AE017042 Genomic DNA. Translation: AAS60438.1.
PIRiAC0020.
RefSeqiNP_991561.1. NC_005810.1.
WP_002208890.1. NZ_KN150724.1.
YP_002345244.1. NC_003143.1.

3D structure databases

ProteinModelPortaliQ74Y23.
SMRiQ74Y23. Positions 1-453.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi214092.YPO0158.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAM87485; AAM87485; y3941.
AAS60438; AAS60438; YP_0160.
GeneIDi1173004.
KEGGiype:YPO0158.
ypm:YP_0160.
PATRICi18589339. VBIYerPes7843_0409.

Phylogenomic databases

eggNOGiCOG0007.
HOGENOMiHOG000290518.
KOiK02302.
OMAiQASFIMP.
OrthoDBiEOG6DRPFR.

Enzyme and pathway databases

UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.
BioCyciYPES214092:GKDD-158-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. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: CO-92 / Biovar Orientalis.
  2. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: KIM10+ / Biovar Mediaevalis.
  3. "Complete genome sequence of Yersinia pestis strain 91001, an isolate avirulent to humans."
    Song Y., Tong Z., Wang J., Wang L., Guo Z., Han Y., Zhang J., Pei D., Zhou D., Qin H., Pang X., Han Y., Zhai J., Li M., Cui B., Qi Z., Jin L., Dai R.
    , Chen F., Li S., Ye C., Du Z., Lin W., Wang J., Yu J., Yang H., Wang J., Huang P., Yang R.
    DNA Res. 11:179-197(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: 91001 / Biovar Mediaevalis.

Entry informationi

Entry nameiCYSG_YERPE
AccessioniPrimary (citable) accession number: Q74Y23
Secondary accession number(s): Q8CZJ5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: July 5, 2004
Last modified: April 1, 2015
This is version 74 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, Reference proteome

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.