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A8AQS4

- CYSG_CITK8

UniProt

A8AQS4 - CYSG_CITK8

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Protein

Siroheme synthase

Gene
cysG, CKO_04792
Organism
Citrobacter koseri (strain ATCC BAA-895 / CDC 4225-83 / SGSC4696)
Status
Reviewed - 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 By similarity.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 oxygen By similarity
Active sitei248 – 2481Proton acceptor By similarity
Active sitei270 – 2701Proton donor By similarity
Binding sitei306 – 3061S-adenosyl-L-methionine; via carbonyl oxygen By similarity
Binding sitei382 – 3821S-adenosyl-L-methionine; via amide nitrogen By similarity
Binding sitei411 – 4111S-adenosyl-L-methionine; via amide nitrogen and carbonyl oxygen By similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi22 – 232NAD By similarity
Nucleotide bindingi43 – 442NAD By similarity

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

BioCyciCKOS290338:GJ8L-4774-MONOMER.
UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.

Names & Taxonomyi

Protein namesi
Recommended name:
Siroheme synthase
Including the following 3 domains:
Uroporphyrinogen-III C-methyltransferase (EC:2.1.1.107)
Short name:
Urogen III methylase
Alternative name(s):
SUMT
Uroporphyrinogen III methylase
Short name:
UROM
Precorrin-2 dehydrogenase (EC:1.3.1.76)
Sirohydrochlorin ferrochelatase (EC:4.99.1.4)
Gene namesi
Name:cysG
Ordered Locus Names:CKO_04792
OrganismiCitrobacter koseri (strain ATCC BAA-895 / CDC 4225-83 / SGSC4696)
Taxonomic identifieri290338 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeCitrobacter
ProteomesiUP000008148: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 457457Siroheme synthaseUniRule annotationPRO_0000330501Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei128 – 1281Phosphoserine By similarity

Keywords - PTMi

Phosphoprotein

Interactioni

Protein-protein interaction databases

STRINGi290338.CKO_04792.

Structurei

3D structure databases

ProteinModelPortaliA8AQS4.
SMRiA8AQS4. Positions 1-457.

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 204204precorrin-2 dehydrogenase / sirohydrochlorin ferrochelatase By similarityAdd
BLAST
Regioni216 – 457242Uroporphyrinogen-III C-methyltransferase By similarityAdd
BLAST
Regioni301 – 3033S-adenosyl-L-methionine binding By similarity
Regioni331 – 3322S-adenosyl-L-methionine binding By similarity

Sequence similaritiesi

In the C-terminal section; belongs to the precorrin methyltransferase family.

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.

A8AQS4-1 [UniParc]FASTAAdd to Basket

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MDHLPIFCQL RDRDCLLVGG GDVAERKARL LLEAGARLTV NALAFIPQFT    50
VWANEGMLTL VEGAFEESLL DGCWLAIAAT DDDAVNQQVS EAAESRRIFC 100
NVVDAPKAAS FIMPSIIDRS PLMVAVSSGG TSPVLARLLR EKLESLLPQH 150
LGQVAHYAGQ LRARVKKQFA TMGERRRFWE KLFINDRLAQ SLANADAKAV 200
SEITEQMLSE PLDHRGEVVL VGAGPGDAGL LTLKGLQQIQ QADVVVYDRL 250
VSDDIMNLVR RDADRVFVGK RAGYHCVPQE EINQILLREA QKGRRVVRLK 300
GGDPFIFGRG GEELETLCHA GIPFSVVPGI TAASGCSAYS GVPLTHRDYA 350
QSVRLVTGHL KTGGELDWEN LAAEKQTLVF YMGLNQAATI QEKLIAFGMQ 400
ADMPVALVEN GTAVKQRVVS GVLAQLGELA KQVESPALII VGRVVALRDK 450
LNWFSNH 457
Length:457
Mass (Da):49,822
Last modified:October 23, 2007 - v1
Checksum:i1C3790D2EB786626
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000822 Genomic DNA. Translation: ABV15837.1.
RefSeqiWP_012135478.1. NC_009792.1.
YP_001456273.1. NC_009792.1.

Genome annotation databases

EnsemblBacteriaiABV15837; ABV15837; CKO_04792.
GeneIDi5582997.
KEGGicko:CKO_04792.
PATRICi20391703. VBICitKos71230_3999.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000822 Genomic DNA. Translation: ABV15837.1 .
RefSeqi WP_012135478.1. NC_009792.1.
YP_001456273.1. NC_009792.1.

3D structure databases

ProteinModelPortali A8AQS4.
SMRi A8AQS4. Positions 1-457.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 290338.CKO_04792.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ABV15837 ; ABV15837 ; CKO_04792 .
GeneIDi 5582997.
KEGGi cko:CKO_04792.
PATRICi 20391703. VBICitKos71230_3999.

Phylogenomic databases

eggNOGi COG0007.
HOGENOMi HOG000290518.
KOi K02302.
OMAi QASFIMP.
OrthoDBi EOG6DRPFR.

Enzyme and pathway databases

UniPathwayi UPA00148 ; UER00211 .
UPA00148 ; UER00222 .
UPA00262 ; UER00211 .
UPA00262 ; UER00222 .
UPA00262 ; UER00376 .
BioCyci CKOS290338:GJ8L-4774-MONOMER.

Family and domain databases

Gene3Di 1.10.8.210. 1 hit.
3.30.950.10. 1 hit.
3.40.1010.10. 1 hit.
3.40.50.720. 1 hit.
HAMAPi MF_01646. Siroheme_synth.
InterProi IPR000878. 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 ]
Pfami PF10414. CysG_dimeriser. 1 hit.
PF13241. NAD_binding_7. 1 hit.
PF00590. TP_methylase. 1 hit.
[Graphical view ]
PIRSFi PIRSF036426. Sirohaem_synth. 1 hit.
SUPFAMi SSF53790. SSF53790. 1 hit.
TIGRFAMsi TIGR01469. cobA_cysG_Cterm. 1 hit.
TIGR01470. cysG_Nterm. 1 hit.
PROSITEi PS00839. SUMT_1. 1 hit.
PS00840. SUMT_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC BAA-895 / CDC 4225-83 / SGSC4696.

Entry informationi

Entry nameiCYSG_CITK8
AccessioniPrimary (citable) accession number: A8AQS4
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: October 23, 2007
Last modified: September 3, 2014
This is version 52 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

External Data

Dasty 3

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