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A4SRH0 (CYSG2_AERS4) Reviewed, UniProtKB/Swiss-Prot

Last modified February 19, 2014. Version 55. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Siroheme synthase 2

Including the following 3 domains:

  1. Uroporphyrinogen-III C-methyltransferase
    Short name=Urogen III methylase
    EC=2.1.1.107
    Alternative name(s):
    SUMT
    Uroporphyrinogen III methylase
    Short name=UROM
  2. Precorrin-2 dehydrogenase
    EC=1.3.1.76
  3. Sirohydrochlorin ferrochelatase
    EC=4.99.1.4
Gene names
Name:cysG2
Ordered Locus Names:ASA_3524
OrganismAeromonas salmonicida (strain A449) [Complete proteome] [HAMAP]
Taxonomic identifier382245 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaAeromonadalesAeromonadaceaeAeromonas

Protein attributes

Sequence length480 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Multifunctional enzyme that catalyzes the SAM-dependent methylation of uroporphyrinogen III at position C-2 and C-7 to form precorrin-2 and then position C-12 or C-18 to form trimethylpyrrocorphin 2. It also catalyzes the conversion of precorrin-2 into siroheme. This reaction consists of the NAD-dependent oxidation of precorrin-2 into sirohydrochlorin and its subsequent ferrochelation into siroheme By similarity. HAMAP-Rule MF_01646

Catalytic activity

S-adenosyl-L-methionine + uroporphyrinogen III = S-adenosyl-L-homocysteine + precorrin-1. HAMAP-Rule MF_01646

S-adenosyl-L-methionine + precorrin-1 = S-adenosyl-L-homocysteine + precorrin-2. HAMAP-Rule MF_01646

Precorrin-2 + NAD+ = sirohydrochlorin + NADH. HAMAP-Rule MF_01646

Siroheme + 2 H+ = sirohydrochlorin + Fe2+. HAMAP-Rule MF_01646

Pathway

Cofactor biosynthesis; adenosylcobalamin biosynthesis; precorrin-2 from uroporphyrinogen III: step 1/1. HAMAP-Rule MF_01646

Cofactor biosynthesis; adenosylcobalamin biosynthesis; sirohydrochlorin from precorrin-2: step 1/1.

Porphyrin-containing compound metabolism; siroheme biosynthesis; precorrin-2 from uroporphyrinogen III: step 1/1. HAMAP-Rule MF_01646

Porphyrin-containing compound metabolism; siroheme biosynthesis; siroheme from sirohydrochlorin: step 1/1.

Porphyrin-containing compound metabolism; siroheme biosynthesis; sirohydrochlorin from precorrin-2: step 1/1.

Sequence similarities

Belongs to the precorrin methyltransferase family.

Sequence caution

The sequence ABO91492.1 differs from that shown. Reason: Frameshift at position 22.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 480480Siroheme synthase 2 HAMAP-Rule MF_01646
PRO_0000330490

Regions

Region216 – 456241Uroporphyrinogen-III C-methyltransferase HAMAP-Rule MF_01646

Sequences

Sequence LengthMass (Da)Tools
A4SRH0 [UniParc].

Last modified April 29, 2008. Version 2.
Checksum: 73EA4371971ABAA8

FASTA48051,976
        10         20         30         40         50         60 
MDYLPMFARL EGRPVLLVGG GEVALRKARL LLAAGARLTL VSPEIEPEFA EFAGRFTHLV 

        70         80         90        100        110        120 
ERFTPAHLAG QLLVVAATDN LEVNALVYQS ANQLGLFVNV VDDPKRSSFI FPSIIDRSPL 

       130        140        150        160        170        180 
MVAVSSGGKA PVLVRLLRER LESLLPRHLG GLTELSGRVR DKAKQVLSSI SDRRRFWERA 

       190        200        210        220        230        240 
FASNTLAGLI EKQDWQSAET WLNDGLDKAQ SEVGEVVLVG AGPGDPGLLT LKALQQIQQA 

       250        260        270        280        290        300 
EVVLYDQLVS PEILDLVRRD ATLVSVGKKA GAHSVPQEET NRLLVEYARA GNRVVRLKGG 

       310        320        330        340        350        360 
DPFMFGCGGE ELEVLAAEGI PFSVVPGITA AAGATAYAGI PLTHRDHAQS AVFITGHCQK 

       370        380        390        400        410        420 
EGKEPDWQQL AVTQQTLVIY MGLMRSEHIQ QQLVSHGRSC TTPIAIIEWG TTARQRVLTG 

       430        440        450        460        470        480 
TLAELAVLAQ QAVSPSLIVI GEVVSLRKQL AWFGEKSGEK RDVQAGTDMN GCDLKLVNLA 

« Hide

References

[1]"The genome of Aeromonas salmonicida subsp. salmonicida A449: insights into the evolution of a fish pathogen."
Reith M.E., Singh R.K., Curtis B., Boyd J.M., Bouevitch A., Kimball J., Munholland J., Murphy C., Sarty D., Williams J., Nash J.H., Johnson S.C., Brown L.L.
BMC Genomics 9:427-427(2008) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: A449.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000644 Genomic DNA. Translation: ABO91492.1. Frameshift.
RefSeqYP_001143240.1. NC_009348.1.

3D structure databases

ProteinModelPortalA4SRH0.
SMRA4SRH0. Positions 1-455.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING382245.ASA_3524.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABO91492; ABO91492; ASA_3524.
GeneID4995755.
KEGGasa:ASA_3524.
PATRIC20793502. VBIAerSal2987_3511.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0007.
HOGENOMHOG000290518.
KOK02302.
OrthoDBEOG6BGNXZ.
ProtClustDBCLSK729798.

Enzyme and pathway databases

BioCycASAL382245:GJJN-3511-MONOMER.
UniPathwayUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.

Family and domain databases

Gene3D1.10.8.210. 1 hit.
3.30.950.10. 1 hit.
3.40.1010.10. 1 hit.
3.40.50.720. 1 hit.
HAMAPMF_01646. Siroheme_synth.
InterProIPR000878. 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]
PfamPF10414. CysG_dimeriser. 1 hit.
PF13241. NAD_binding_7. 1 hit.
PF00590. TP_methylase. 1 hit.
[Graphical view]
PIRSFPIRSF036426. Sirohaem_synth. 1 hit.
SUPFAMSSF53790. SSF53790. 1 hit.
TIGRFAMsTIGR01469. cobA_cysG_Cterm. 1 hit.
TIGR01470. cysG_Nterm. 1 hit.
PROSITEPS00839. SUMT_1. 1 hit.
PS00840. SUMT_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameCYSG2_AERS4
AccessionPrimary (citable) accession number: A4SRH0
Entry history
Integrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: April 29, 2008
Last modified: February 19, 2014
This is version 55 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways