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Protein

Siroheme synthase 2

Gene

cysG2

Organism
Aeromonas hydrophila subsp. hydrophila (strain ATCC 7966 / NCIB 9240)
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 sitei223 – 2231S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation
Active sitei246 – 2461Proton acceptorUniRule annotation
Active sitei268 – 2681Proton donorUniRule annotation
Binding sitei381 – 3811S-adenosyl-L-methionine; via amide nitrogenUniRule annotation
Binding sitei410 – 4101S-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

BioCyciAHYD380703:GH2M-3568-MONOMER.
UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.

Names & Taxonomyi

Protein namesi
Recommended name:
Siroheme synthase 2UniRule annotation
Including the following 3 domains:
Uroporphyrinogen-III C-methyltransferase 2UniRule annotation (EC:2.1.1.107UniRule annotation)
Short name:
Urogen III methylase 2UniRule annotation
Alternative name(s):
SUMT 2UniRule annotation
Uroporphyrinogen III methylase 2UniRule annotation
Short name:
UROM 2UniRule annotation
Precorrin-2 dehydrogenase 2UniRule annotation (EC:1.3.1.76UniRule annotation)
Sirohydrochlorin ferrochelatase 2UniRule annotation (EC:4.99.1.4UniRule annotation)
Gene namesi
Name:cysG2UniRule annotation
Ordered Locus Names:AHA_3568
OrganismiAeromonas hydrophila subsp. hydrophila (strain ATCC 7966 / NCIB 9240)
Taxonomic identifieri380703 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaAeromonadalesAeromonadaceaeAeromonas
ProteomesiUP000000756 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 470470Siroheme synthase 2PRO_0000330487Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei126 – 1261PhosphoserineUniRule annotation

Keywords - PTMi

Phosphoprotein

Interactioni

Protein-protein interaction databases

STRINGi380703.AHA_3568.

Structurei

3D structure databases

ProteinModelPortaliA0KP37.
SMRiA0KP37. Positions 1-455.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 202202precorrin-2 dehydrogenase / sirohydrochlorin ferrochelataseUniRule annotationAdd
BLAST
Regioni214 – 470257Uroporphyrinogen-III C-methyltransferaseUniRule annotationAdd
BLAST
Regioni299 – 3013S-adenosyl-L-methionine bindingUniRule annotation
Regioni329 – 3302S-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.
OMAiLHQQLAW.
OrthoDBiEOG6BGNXZ.

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.

A0KP37-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MDYLPMFAKL DGRPVLLVGG GEVALRKARL LLAAGARLTL VSPELEPDFH
60 70 80 90 100
QFADRFTHLA ERFTPAHLTG QILVVAATDD LEVNALVYQS ANQLGLFVNV
110 120 130 140 150
VDDPKRSSFI FPSIIDRSPI MVAVSSGGKA PVLVRLLRER LESLLPRHLG
160 170 180 190 200
ALAELSGRVR DQAKRVLSSI SDRRRFWERA FASNTLAGLI EKEDWQGAEQ
210 220 230 240 250
WLNDGLDQAK NEVGEVVLVG AGPGDPGLLT LKALQQIQQA EVVLYDQLVS
260 270 280 290 300
PEILDLVRRD ATLVSVGKKA GAHSVPQEET NRLLVEYAKA GNRVVRLKGG
310 320 330 340 350
DPFMFGRGGE ELEVLAEEGI PFSVVPGITA AAGATAYAGI PLTHRDHAQS
360 370 380 390 400
AVFITGHCQI DGKEPDWQQL AATSQTLVIY MGLMRSEHIQ QQLVSHGRSS
410 420 430 440 450
ATPIAIIERG TTARQRVLTG TLADLAELAA QAVSPSLIVI GEVVALRERL
460 470
AWFGEGQQQG TCDLKLVSLA
Length:470
Mass (Da):50,861
Last modified:December 11, 2006 - v1
Checksum:i9E572A53CAAF5A6A
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000462 Genomic DNA. Translation: ABK38644.1.
RefSeqiYP_858038.1. NC_008570.1.

Genome annotation databases

EnsemblBacteriaiABK38644; ABK38644; AHA_3568.
GeneIDi4488263.
KEGGiaha:AHA_3568.
PATRICi20784784. VBIAerHyd135212_3555.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000462 Genomic DNA. Translation: ABK38644.1.
RefSeqiYP_858038.1. NC_008570.1.

3D structure databases

ProteinModelPortaliA0KP37.
SMRiA0KP37. Positions 1-455.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi380703.AHA_3568.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABK38644; ABK38644; AHA_3568.
GeneIDi4488263.
KEGGiaha:AHA_3568.
PATRICi20784784. VBIAerHyd135212_3555.

Phylogenomic databases

eggNOGiCOG0007.
HOGENOMiHOG000290518.
KOiK02302.
OMAiLHQQLAW.
OrthoDBiEOG6BGNXZ.

Enzyme and pathway databases

UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.
BioCyciAHYD380703:GH2M-3568-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: ATCC 7966 / NCIB 9240.

Entry informationi

Entry nameiCYSG2_AERHH
AccessioniPrimary (citable) accession number: A0KP37
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 28, 2008
Last sequence update: December 11, 2006
Last modified: March 3, 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, 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.