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Q9PF46 (CYSG_XYLFA) Reviewed, UniProtKB/Swiss-Prot

Last modified June 11, 2014. Version 82. 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:XF_0832
OrganismXylella fastidiosa (strain 9a5c) [Complete proteome] [HAMAP]
Taxonomic identifier160492 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaXanthomonadalesXanthomonadaceaeXylella

Protein attributes

Sequence length476 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

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. 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

In the N-terminal section; belongs to the precorrin-2 dehydrogenase / sirohydrochlorin ferrochelatase family.

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

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 476476Siroheme synthase HAMAP-Rule MF_01646
PRO_0000330568

Regions

Nucleotide binding25 – 262NAD By similarity
Nucleotide binding46 – 472NAD By similarity
Region1 – 207207precorrin-2 dehydrogenase / sirohydrochlorin ferrochelatase By similarity
Region220 – 476257Uroporphyrinogen-III C-methyltransferase By similarity
Region305 – 3073S-adenosyl-L-methionine binding By similarity
Region335 – 3362S-adenosyl-L-methionine binding By similarity

Sites

Active site2521Proton acceptor By similarity
Active site2741Proton donor By similarity
Binding site3101S-adenosyl-L-methionine; via carbonyl oxygen By similarity
Binding site3871S-adenosyl-L-methionine; via amide nitrogen By similarity
Binding site4161S-adenosyl-L-methionine; via amide nitrogen and carbonyl oxygen By similarity

Amino acid modifications

Modified residue1321Phosphoserine By similarity

Sequences

Sequence LengthMass (Da)Tools
Q9PF46 [UniParc].

Last modified October 1, 2000. Version 1.
Checksum: 3F8FDB589B8FAAF2

FASTA47651,598
        10         20         30         40         50         60 
MTANVLFPLF ANLHDRAVLV VGGGKVAERK TEALLKVGAL PIIGAPSLTA SLQHWAETGR 

        70         80         90        100        110        120 
ITWRQGTFEN SWLQEDIWLV IAATDQPEVN HAAARAAHAQ RLFVNVVDDI ALSNVQVPAV 

       130        140        150        160        170        180 
VERGPLRIAI SSGGGAPMVA RYLRQQLESL IDDSWGRLTT LFAQRRDTIR ARYPNIEARR 

       190        200        210        220        230        240 
RFFETQLTGP LQRLLRKQRH AEAEAVLEAA LAETPPTGSG SVTLVGAGAG DAGLLTLNAL 

       250        260        270        280        290        300 
RALNEADIIL YDRLVSDTVL QVARRDAEQI EVGKSATGHS VRQEDIHSLM LQHARAGQRV 

       310        320        330        340        350        360 
VRLKGGDPFV FGRGGEELEF LRTHNIPYEV IPGITAALAC AAYAGIPLTH RDHAQSLCLI 

       370        380        390        400        410        420 
TAHCQSSLDT LDWAALAQER QTLAFYMGVA GLPTIQQRLC EAGRAETTPF ALIENGARAQ 

       430        440        450        460        470 
QRVLTGTLKT LAHTAQTYAV RPPALLILGE VTTLAEHLHW FGTAPLSAPC PPALIL 

« Hide

References

[1]"The genome sequence of the plant pathogen Xylella fastidiosa."
Simpson A.J.G., Reinach F.C., Arruda P., Abreu F.A., Acencio M., Alvarenga R., Alves L.M.C., Araya J.E., Baia G.S., Baptista C.S., Barros M.H., Bonaccorsi E.D., Bordin S., Bove J.M., Briones M.R.S., Bueno M.R.P., Camargo A.A., Camargo L.E.A. expand/collapse author list , Carraro D.M., Carrer H., Colauto N.B., Colombo C., Costa F.F., Costa M.C.R., Costa-Neto C.M., Coutinho L.L., Cristofani M., Dias-Neto E., Docena C., El-Dorry H., Facincani A.P., Ferreira A.J.S., Ferreira V.C.A., Ferro J.A., Fraga J.S., Franca S.C., Franco M.C., Frohme M., Furlan L.R., Garnier M., Goldman G.H., Goldman M.H.S., Gomes S.L., Gruber A., Ho P.L., Hoheisel J.D., Junqueira M.L., Kemper E.L., Kitajima J.P., Krieger J.E., Kuramae E.E., Laigret F., Lambais M.R., Leite L.C.C., Lemos E.G.M., Lemos M.V.F., Lopes S.A., Lopes C.R., Machado J.A., Machado M.A., Madeira A.M.B.N., Madeira H.M.F., Marino C.L., Marques M.V., Martins E.A.L., Martins E.M.F., Matsukuma A.Y., Menck C.F.M., Miracca E.C., Miyaki C.Y., Monteiro-Vitorello C.B., Moon D.H., Nagai M.A., Nascimento A.L.T.O., Netto L.E.S., Nhani A. Jr., Nobrega F.G., Nunes L.R., Oliveira M.A., de Oliveira M.C., de Oliveira R.C., Palmieri D.A., Paris A., Peixoto B.R., Pereira G.A.G., Pereira H.A. Jr., Pesquero J.B., Quaggio R.B., Roberto P.G., Rodrigues V., de Rosa A.J.M., de Rosa V.E. Jr., de Sa R.G., Santelli R.V., Sawasaki H.E., da Silva A.C.R., da Silva A.M., da Silva F.R., Silva W.A. Jr., da Silveira J.F., Silvestri M.L.Z., Siqueira W.J., de Souza A.A., de Souza A.P., Terenzi M.F., Truffi D., Tsai S.M., Tsuhako M.H., Vallada H., Van Sluys M.A., Verjovski-Almeida S., Vettore A.L., Zago M.A., Zatz M., Meidanis J., Setubal J.C.
Nature 406:151-159(2000) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: 9a5c.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AE003849 Genomic DNA. Translation: AAF83642.1.
PIRE82758.
RefSeqNP_298122.1. NC_002488.3.

3D structure databases

ProteinModelPortalQ9PF46.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING160492.XF0832.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaAAF83642; AAF83642; XF_0832.
GeneID1126367.
KEGGxfa:XF0832.
PATRIC24131673. VBIXylFas578_0876.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0007.
KOK02302.
OMAQASFIMP.
OrthoDBEOG6DRPFR.

Enzyme and pathway databases

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_XYLFA
AccessionPrimary (citable) accession number: Q9PF46
Entry history
Integrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: October 1, 2000
Last modified: June 11, 2014
This is version 82 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