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Protein

Siroheme synthase

Gene

cysG

Organism
Pseudomonas aeruginosa (strain UCBPP-PA14)
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 sitei226 – 2261S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation
Active sitei249 – 2491Proton acceptorUniRule annotation
Active sitei271 – 2711Proton donorUniRule annotation
Binding sitei307 – 3071S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation
Binding sitei384 – 3841S-adenosyl-L-methionine; via amide nitrogenUniRule annotation
Binding sitei413 – 4131S-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

BioCyciPAER208963:GI5K-2464-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:PA14_30340
OrganismiPseudomonas aeruginosa (strain UCBPP-PA14)
Taxonomic identifieri208963 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaPseudomonadalesPseudomonadaceaePseudomonas
ProteomesiUP000000653 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 465465Siroheme synthasePRO_0000330535Add
BLAST

Amino acid modifications

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

Keywords - PTMi

Phosphoprotein

Interactioni

Protein-protein interaction databases

STRINGi208963.PA14_30340.

Structurei

3D structure databases

ProteinModelPortaliQ02NA3.
SMRiQ02NA3. Positions 1-460.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 203203precorrin-2 dehydrogenase / sirohydrochlorin ferrochelataseUniRule annotationAdd
BLAST
Regioni217 – 465249Uroporphyrinogen-III C-methyltransferaseUniRule annotationAdd
BLAST
Regioni302 – 3043S-adenosyl-L-methionine bindingUniRule annotation
Regioni332 – 3332S-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.
OMAiLPVICEQ.
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.

Q02NA3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MDFLPLFHSL QGRLALVVGG GEVALRKARL LADAGARLRV VAPQIHIELR
60 70 80 90 100
HLVEQGGGEL LERDYQDGDQ PGCALIIAAT DDEPLNAEVS RAANARGIPV
110 120 130 140 150
NVVDAPALCS VIFPAIVDRS PLVVAVSSGG DAPVLARLIR AKLETWIPST
160 170 180 190 200
YGQLAGLASR FRHRVKELLP DLQQRRVFWE NLFQGEIAER VLAGRPAEAE
210 220 230 240 250
RLLEERLAGG LAHIATGEVY LVGAGPGDPD LLTFRALRLM QQADVVLYDR
260 270 280 290 300
LVAPSILELC RRDAERLYVG KRRAEHAVPQ DRINRLLVEL ASQGKRVLRL
310 320 330 340 350
KGGDPFIFGR GGEEIDELAA RGIPFQVVPG ITAASGCAAY AGIPLTHRDH
360 370 380 390 400
AQSVRFVTGH LKDGTTDLPW QDLVAPGQTL VFYMGLVGLP VICEQLVAHG
410 420 430 440 450
RSAQTPAALI QQGTTAQQRV FTGTLENLPQ LVAEHEVHAP TLVIVGEVVQ
460
LRDKLAWFEG AREDA
Length:465
Mass (Da):50,409
Last modified:November 13, 2006 - v1
Checksum:iF5D4B849A65F68E4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000438 Genomic DNA. Translation: ABJ11834.1.
RefSeqiYP_790583.1. NC_008463.1.

Genome annotation databases

EnsemblBacteriaiABJ11834; ABJ11834; PA14_30340.
KEGGipau:PA14_30340.
PATRICi19851051. VBIPseAer79785_2478.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000438 Genomic DNA. Translation: ABJ11834.1.
RefSeqiYP_790583.1. NC_008463.1.

3D structure databases

ProteinModelPortaliQ02NA3.
SMRiQ02NA3. Positions 1-460.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi208963.PA14_30340.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABJ11834; ABJ11834; PA14_30340.
KEGGipau:PA14_30340.
PATRICi19851051. VBIPseAer79785_2478.

Phylogenomic databases

eggNOGiCOG0007.
HOGENOMiHOG000290518.
KOiK02302.
OMAiLPVICEQ.
OrthoDBiEOG6DRPFR.

Enzyme and pathway databases

UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.
BioCyciPAER208963:GI5K-2464-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. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: UCBPP-PA14.

Entry informationi

Entry nameiCYSG_PSEAB
AccessioniPrimary (citable) accession number: Q02NA3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 28, 2008
Last sequence update: November 13, 2006
Last modified: March 31, 2015
This is version 64 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

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.