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Protein

Siroheme synthase

Gene

cysG

Organism
Xylella fastidiosa (strain M12)
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

Pathway:iadenosylcobalamin biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes precorrin-2 from uroporphyrinogen III.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Siroheme synthase (cysG)
This subpathway is part of the pathway adenosylcobalamin biosynthesis, which is itself part of Cofactor biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes precorrin-2 from uroporphyrinogen III, the pathway adenosylcobalamin biosynthesis and in Cofactor biosynthesis.

Pathway:iadenosylcobalamin biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes sirohydrochlorin from precorrin-2.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Siroheme synthase (cysG)
This subpathway is part of the pathway adenosylcobalamin biosynthesis, which is itself part of Cofactor biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes sirohydrochlorin from precorrin-2, the pathway adenosylcobalamin biosynthesis and in Cofactor biosynthesis.

Pathway:isiroheme biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes precorrin-2 from uroporphyrinogen III.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Siroheme synthase (cysG)
This subpathway is part of the pathway siroheme biosynthesis, which is itself part of Porphyrin-containing compound metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes precorrin-2 from uroporphyrinogen III, the pathway siroheme biosynthesis and in Porphyrin-containing compound metabolism.

Pathway:isiroheme biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes siroheme from sirohydrochlorin.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Siroheme synthase (cysG)
This subpathway is part of the pathway siroheme biosynthesis, which is itself part of Porphyrin-containing compound metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes siroheme from sirohydrochlorin, the pathway siroheme biosynthesis and in Porphyrin-containing compound metabolism.

Pathway:isiroheme biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes sirohydrochlorin from precorrin-2.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Siroheme synthase (cysG)
This subpathway is part of the pathway siroheme biosynthesis, which is itself part of Porphyrin-containing compound metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes sirohydrochlorin from precorrin-2, the pathway siroheme biosynthesis and in Porphyrin-containing compound metabolism.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei252 – 2521Proton acceptorUniRule annotation
Active sitei274 – 2741Proton donorUniRule annotation
Binding sitei310 – 3101S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation
Binding sitei387 – 3871S-adenosyl-L-methionine; via amide nitrogenUniRule annotation
Binding sitei416 – 4161S-adenosyl-L-methionine; via amide nitrogen and carbonyl oxygenUniRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi25 – 262NADUniRule annotation
Nucleotide bindingi46 – 472NADUniRule annotation

GO - Molecular functioni

GO - Biological processi

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

BioCyciXFAS405440:GH0D-2059-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:Xfasm12_2018
OrganismiXylella fastidiosa (strain M12)
Taxonomic identifieri405440 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaXanthomonadalesXanthomonadaceaeXylella

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 476476Siroheme synthasePRO_1000186962Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei132 – 1321PhosphoserineUniRule annotation

Keywords - PTMi

Phosphoprotein

Structurei

3D structure databases

ProteinModelPortaliB0U4X0.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 207207precorrin-2 dehydrogenase / sirohydrochlorin ferrochelataseUniRule annotationAdd
BLAST
Regioni220 – 476257Uroporphyrinogen-III C-methyltransferaseUniRule annotationAdd
BLAST
Regioni305 – 3073S-adenosyl-L-methionine bindingUniRule annotation
Regioni335 – 3362S-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.
OMAiQASFIMP.
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.

B0U4X0-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTANALFPLF ANLHDRAVLV VGGGKVAERK TEALLKVGAL PIIGAPSLTT
60 70 80 90 100
SLQRWAETGR ITWRQGTFED SWLQEDIWLV IAATDQPEVN HAAARAAHAQ
110 120 130 140 150
RLFVNVVDDI ALSNVQVPAV VERGPLRIAI SSGGGAPMVA RYLRQQLESL
160 170 180 190 200
IDDSWGRLTT LFAQRRDTIR ARYPNIEARR RFFETQLAGP LQRLLRKQRH
210 220 230 240 250
AEAEAVLEAA LAETPLTESG SVTLVGAGAG DAGLLTLNAL RALNEADIIL
260 270 280 290 300
YDRLVSDTVL QMARRDAEQI EVGKSATGHS VRQEDIHTLM LQHAHAGQRV
310 320 330 340 350
VRLKGGDPFV FGRGGEELEF LRTHGIPYEV IPGITAALAC AAYAGIPLTH
360 370 380 390 400
RDHAQSLCLI TAHCQSSLDT LDWAALAQER QTLTFYMGVA GLPTIQQRLC
410 420 430 440 450
EAGRAETTPF ALIENGARAQ QRVLTGTLKT LAHTAQTYAV RPPALLILGE
460 470
VTALAEHLHW FGTAPLSAPC PPARIL
Length:476
Mass (Da):51,691
Last modified:April 8, 2008 - v1
Checksum:i3D5EC31A541DABAD
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000941 Genomic DNA. Translation: ACA12887.1.

Genome annotation databases

EnsemblBacteriaiACA12887; ACA12887; Xfasm12_2018.
KEGGixfm:Xfasm12_2018.
PATRICi24140853. VBIXylFas124301_2367.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000941 Genomic DNA. Translation: ACA12887.1.

3D structure databases

ProteinModelPortaliB0U4X0.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACA12887; ACA12887; Xfasm12_2018.
KEGGixfm:Xfasm12_2018.
PATRICi24140853. VBIXylFas124301_2367.

Phylogenomic databases

eggNOGiCOG0007.
HOGENOMiHOG000290518.
KOiK02302.
OMAiQASFIMP.
OrthoDBiEOG6DRPFR.

Enzyme and pathway databases

UniPathwayiUPA00148; UER00211.
UPA00148; UER00222.
UPA00262; UER00211.
UPA00262; UER00222.
UPA00262; UER00376.
BioCyciXFAS405440:GH0D-2059-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. "Whole genome sequences of two Xylella fastidiosa strains (M12 and M23) causing almond leaf scorch disease in California."
    Chen J., Xie G., Han S., Chertkov O., Sims D., Civerolo E.L.
    J. Bacteriol. 192:4534-4534(2010) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: M12.

Entry informationi

Entry nameiCYSG_XYLFM
AccessioniPrimary (citable) accession number: B0U4X0
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: April 8, 2008
Last modified: July 22, 2015
This is version 60 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

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.