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Protein

Siroheme synthase

Gene

cysG

Organism
Pseudomonas stutzeri (strain A1501)
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 sitei225 – 2251S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation
Active sitei248 – 2481Proton acceptorUniRule annotation
Active sitei270 – 2701Proton donorUniRule annotation
Binding sitei306 – 3061S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation
Binding sitei383 – 3831S-adenosyl-L-methionine; via amide nitrogenUniRule annotation
Binding sitei412 – 4121S-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

BioCyciPSTU379731:GJER-2283-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:PST_2288
OrganismiPseudomonas stutzeri (strain A1501)
Taxonomic identifieri379731 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaPseudomonadalesPseudomonadaceaePseudomonas
ProteomesiUP000000233: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 465465Siroheme synthasePRO_0000330542Add
BLAST

Amino acid modifications

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

Keywords - PTMi

Phosphoprotein

Interactioni

Protein-protein interaction databases

STRINGi379731.PST_2288.

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 203203precorrin-2 dehydrogenase / sirohydrochlorin ferrochelataseUniRule annotationAdd
BLAST
Regioni216 – 465250Uroporphyrinogen-III C-methyltransferaseUniRule annotationAdd
BLAST
Regioni301 – 3033S-adenosyl-L-methionine bindingUniRule annotation
Regioni331 – 3322S-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.
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.
PROSITEiPS00840. SUMT_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

A4VLU6-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MEYLPLFHNL KGRTVLIVGG GEIALRKARL LSEAGARLRV VAPSIEAQLV
60 70 80 90 100
ELVQAGAGEC LDRGYARQDL QGCVLAIAAT DDEPLNATVS QHANALGVPV
110 120 130 140 150
NVVDSPQLCS VIFPAIVDRS PLVVAVSSGG DAPVLARLIR ARIETWIPAA
160 170 180 190 200
YGQLAGLAKQ FRAQVKARFA NVQQRRVFWE EVFQGPIAEQ ALAGRTAEAE
210 220 230 240 250
RLLAEKLAGV APKALGEVYL VGAGPGDPDL LTFRALRLMQ QADVVLYDRL
260 270 280 290 300
VAPAIIDLCR RDADRIYVGK QRADHAVPQE QINQQLVTLA KQGKRVLRLK
310 320 330 340 350
GGDPFIFGRG GEEIEELAAH GVPFQVVPGI TAASGCAAYA GIPLTHRDHA
360 370 380 390 400
QSVRFVTGHL KDGSCDLPWS ELAAPAQTLV FYMGLVGLPV ICQQLIAHGR
410 420 430 440 450
SAETPAALVQ QGTTSNQRVF TATLGTLAGR IAQEDVQAPT LLIVGEVVQL
460
REKLAWFEGA QAAGR
Length:465
Mass (Da):49,692
Last modified:April 29, 2008 - v2
Checksum:i55ED316A54895278
GO

Sequence cautioni

The sequence ABP79947.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000304 Genomic DNA. Translation: ABP79947.1. Different initiation.
RefSeqiYP_001172789.1. NC_009434.1.

Genome annotation databases

EnsemblBacteriaiABP79947; ABP79947; PST_2288.
GeneIDi5098368.
KEGGipsa:PST_2288.
PATRICi19965068. VBIPseStu31643_2297.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000304 Genomic DNA. Translation: ABP79947.1. Different initiation.
RefSeqiYP_001172789.1. NC_009434.1.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi379731.PST_2288.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABP79947; ABP79947; PST_2288.
GeneIDi5098368.
KEGGipsa:PST_2288.
PATRICi19965068. VBIPseStu31643_2297.

Phylogenomic databases

eggNOGiCOG0007.
HOGENOMiHOG000290518.
KOiK02302.
OrthoDBiEOG6DRPFR.

Enzyme and pathway databases

UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.
BioCyciPSTU379731:GJER-2283-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.
PROSITEiPS00840. SUMT_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Complete genome sequence of the metabolically versatile and root-associated nitrogen-fixing bacterium Pseudomonas stutzeri A1501."
    Yan Y., Yang J., Dou Y., Ping S., Chen M., Yao Z., Li H., Lu W., Zhang W., Peng J., Liu W., He S., Geng L., Zhang X., Yang F., Li D., Lin Z., Wang Y.
    , Elmerich C., Lin M., Jin Q.
    Submitted (APR-2006) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: A1501.

Entry informationi

Entry nameiCYSG_PSEU5
AccessioniPrimary (citable) accession number: A4VLU6
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: April 29, 2008
Last modified: January 7, 2015
This is version 58 of the entry and version 2 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.