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A1AVU5 (CYSG_RUTMC) Reviewed, UniProtKB/Swiss-Prot

Last modified February 19, 2014. Version 57. 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

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:cysG
Ordered Locus Names:Rmag_0270
OrganismRuthia magnifica subsp. Calyptogena magnifica [Complete proteome] [HAMAP]
Taxonomic identifier413404 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriasulfur-oxidizing symbionts

Protein attributes

Sequence length472 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 annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 472472Siroheme synthase HAMAP-Rule MF_01646
PRO_0000330550

Regions

Region218 – 460243Uroporphyrinogen-III C-methyltransferase HAMAP-Rule MF_01646

Sequences

Sequence LengthMass (Da)Tools
A1AVU5 [UniParc].

Last modified January 23, 2007. Version 1.
Checksum: 652623FA74F2E4AA

FASTA47252,011
        10         20         30         40         50         60 
MNYLPIFIDI KQKPCLVVGG GDIAYRKINF LLKAHGQVTC IAKSSCKNVV KLASDNKIIY 

        70         80         90        100        110        120 
FEKSFEASDI KEQVLIVSAT DNTSLNKQVS ELSNQNNIPV NVVDSPDLCT FIMPSIVDRS 

       130        140        150        160        170        180 
PIVIAISSAG KAPVLARLIR AKLESTLPHA YGKLAELAGN FRDKVKEKFS NIEDRRYFWE 

       190        200        210        220        230        240 
KTFSGIIAEK VFSGKIQEAK ADLQVQLDGS TKTQVGEVYL VGGGPGDPDL LTFKALRLMQ 

       250        260        270        280        290        300 
QADVVLYDRL VSNGVMGLVR RDAQLIYVGK ERDNHVVPQG DINQLLVNLA KQGRRVCRLK 

       310        320        330        340        350        360 
GGDPFIFGRG GEEIETLAEN GISFQVVPGI TAASGCSTYS GIPLTHRDYS QSCRFVTGHL 

       370        380        390        400        410        420 
KDGSMNLPWH ELSVEQQTIV FYMALNGARH LSEQLITHGM SPDMPVALVE KGTTPEQKVY 

       430        440        450        460        470 
TTTLKKLPDL VKNEIIHAPT LIIIGEVVTL REKLNWFDAK LASSKKSYLF GG 

« Hide

References

[1]"The Calyptogena magnifica chemoautotrophic symbiont genome."
Newton I.L.G., Woyke T., Auchtung T.A., Dilly G.F., Dutton R.J., Fisher M.C., Fontanez K.M., Lau E., Stewart F.J., Richardson P.M., Barry K.W., Saunders E., Detter J.C., Wu D., Eisen J.A., Cavanaugh C.M.
Science 315:998-1000(2007) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000488 Genomic DNA. Translation: ABL02052.1.
RefSeqYP_903523.1. NC_008610.1.

3D structure databases

ProteinModelPortalA1AVU5.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING413404.Rmag_0270.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABL02052; ABL02052; Rmag_0270.
GeneID4555165.
KEGGrma:Rmag_0270.
PATRIC32000163. VBICanRut45856_0310.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0007.
HOGENOMHOG000290518.
KOK02302.
OMAQASFIMP.
OrthoDBEOG6DRPFR.
ProtClustDBCLSK850414.

Enzyme and pathway databases

BioCycCRUT413404:GHM7-279-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.
PROSITEPS00840. SUMT_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameCYSG_RUTMC
AccessionPrimary (citable) accession number: A1AVU5
Entry history
Integrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: January 23, 2007
Last modified: February 19, 2014
This is version 57 of the entry and version 1 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