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Protein

Siroheme synthase 1

Gene

cysG1

Organism
Cronobacter sakazakii (strain ATCC BAA-894) (Enterobacter sakazakii)
Status
Reviewed-Annotation score: -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

2 S-adenosyl-L-methionine + uroporphyrinogen III = 2 S-adenosyl-L-homocysteine + precorrin-2.UniRule annotation
Precorrin-2 + NAD+ = sirohydrochlorin + NADH.UniRule annotation
Siroheme + 2 H+ = sirohydrochlorin + Fe2+.UniRule annotation

Pathwayi: adenosylcobalamin 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 1 (cysG1), Siroheme synthase 2 (cysG2)
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.

Pathwayi: adenosylcobalamin 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 1 (cysG1), Siroheme synthase 2 (cysG2)
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.

Pathwayi: siroheme 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 1 (cysG1), Siroheme synthase 2 (cysG2)
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.

Pathwayi: siroheme 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 1 (cysG1), Siroheme synthase 2 (cysG2)
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.

Pathwayi: siroheme 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 1 (cysG1), Siroheme synthase 2 (cysG2)
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)DescriptionActionsGraphical viewLength
Binding sitei224S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation1
Active sitei247Proton acceptorUniRule annotation1
Active sitei269Proton donorUniRule annotation1
Binding sitei305S-adenosyl-L-methionine; via carbonyl oxygenUniRule annotation1
Binding sitei382S-adenosyl-L-methionine; via amide nitrogenUniRule annotation1
Binding sitei411S-adenosyl-L-methionine; via amide nitrogen and carbonyl oxygenUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi22 – 23NADUniRule annotation2
Nucleotide bindingi43 – 44NADUniRule annotation2

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionLyase, Methyltransferase, Multifunctional enzyme, Oxidoreductase, Transferase
Biological processCobalamin biosynthesis, Porphyrin biosynthesis
LigandNAD, S-adenosyl-L-methionine

Enzyme and pathway databases

BioCyciCSAK290339:G1G9O-497-MONOMER
UniPathwayiUPA00148; UER00211
UPA00148; UER00222
UPA00262; UER00211
UPA00262; UER00222
UPA00262; UER00376

Names & Taxonomyi

Protein namesi
Recommended name:
Siroheme synthase 1UniRule annotation
Including the following 3 domains:
Uroporphyrinogen-III C-methyltransferase 1UniRule annotation (EC:2.1.1.107UniRule annotation)
Short name:
Urogen III methylase 1UniRule annotation
Alternative name(s):
SUMT 1UniRule annotation
Uroporphyrinogen III methylase 1UniRule annotation
Short name:
UROM 1UniRule annotation
Precorrin-2 dehydrogenase 1UniRule annotation (EC:1.3.1.76UniRule annotation)
Sirohydrochlorin ferrochelatase 1UniRule annotation (EC:4.99.1.4UniRule annotation)
Gene namesi
Name:cysG1UniRule annotation
Ordered Locus Names:ESA_00538
OrganismiCronobacter sakazakii (strain ATCC BAA-894) (Enterobacter sakazakii)
Taxonomic identifieri290339 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeCronobacter
Proteomesi
  • UP000000260 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003305021 – 471Siroheme synthase 1Add BLAST471

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei128PhosphoserineUniRule annotation1

Keywords - PTMi

Phosphoprotein

Proteomic databases

PRIDEiA7MJ67

Interactioni

Protein-protein interaction databases

STRINGi290339.ESA_00538

Structurei

3D structure databases

ProteinModelPortaliA7MJ67
SMRiA7MJ67
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni1 – 203precorrin-2 dehydrogenase / sirohydrochlorin ferrochelataseUniRule annotationAdd BLAST203
Regioni215 – 471Uroporphyrinogen-III C-methyltransferaseUniRule annotationAdd BLAST257
Regioni300 – 302S-adenosyl-L-methionine bindingUniRule annotation3
Regioni330 – 331S-adenosyl-L-methionine bindingUniRule annotation2

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

eggNOGiENOG4105CB8 Bacteria
COG0007 LUCA
COG1648 LUCA
HOGENOMiHOG000290518
KOiK02302
OMAiQVSEYWP

Family and domain databases

CDDicd11642 SUMT, 1 hit
Gene3Di1.10.8.210, 1 hit
3.30.950.10, 1 hit
3.40.1010.10, 1 hit
HAMAPiMF_01646 Siroheme_synth, 1 hit
InterProiView protein in InterPro
IPR000878 4pyrrol_Mease
IPR035996 4pyrrol_Methylase_sf
IPR014777 4pyrrole_Mease_sub1
IPR014776 4pyrrole_Mease_sub2
IPR006366 CobA/CysG_C
IPR036291 NAD(P)-bd_dom_sf
IPR037115 Sirohaem_synt_dimer_dom_sf
IPR012409 Sirohaem_synth
IPR028281 Sirohaem_synthase_central
IPR019478 Sirohaem_synthase_dimer_dom
IPR006367 Sirohaem_synthase_N
IPR003043 Uropor_MeTrfase_CS
PfamiView protein in Pfam
PF10414 CysG_dimeriser, 1 hit
PF14824 Sirohm_synth_M, 1 hit
PF00590 TP_methylase, 1 hit
PIRSFiPIRSF036426 Sirohaem_synth, 1 hit
SUPFAMiSSF51735 SSF51735, 1 hit
SSF53790 SSF53790, 1 hit
TIGRFAMsiTIGR01469 cobA_cysG_Cterm, 1 hit
TIGR01470 cysG_Nterm, 1 hit
PROSITEiView protein in PROSITE
PS00839 SUMT_1, 1 hit
PS00840 SUMT_2, 1 hit

Sequencei

Sequence statusi: Complete.

A7MJ67-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MEYLPLFAQL KQRPVLVVGG GEVALRKIAL LRRAGACVSV VAKKLHPELA
60 70 80 90 100
ALEQEGALRW LAQSFEPAQL DAVFLVIAAT SDAALNRRVF DEANARQRLV
110 120 130 140 150
NVVDDQPLCS FIFPSIVDRS PLIVAISSSG NAPVLARLLR EKIESLLPAS
160 170 180 190 200
LGRMAEVAGG FRDRIKARIP TTDGRRRFWE KAFRGRFASL MAAGDTRAAE
210 220 230 240 250
AVLEAELDAP QGPQGEIILV GAGPGDAGLL TLRGLQVMQQ ADVVLYDHLV
260 270 280 290 300
SDGVLDLVRR DADRICVGKR AGAHAVAQHE TNQMLIDFAR EGKTVVRLKG
310 320 330 340 350
GDPFIFGRGG EELEAAKAAG VPFQVVPGVT AASGATAYAG IPLTHRDYAQ
360 370 380 390 400
SAVFVTGHYK PDSEPFDWAL LAKSRQTLAI YMGTMKAAEI SQQLIAHGRD
410 420 430 440 450
ATTPVAVISR GTREDQRVLT GTLDTLNILA KDAPMPALLV VGEVVQLHQQ
460 470
LAWFQHSTDA ENLRSSVVNL A
Length:471
Mass (Da):50,673
Last modified:October 2, 2007 - v1
Checksum:i28F682F12075C41B
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000783 Genomic DNA Translation: ABU75829.1
RefSeqiWP_012123930.1, NC_009778.1

Genome annotation databases

EnsemblBacteriaiABU75829; ABU75829; ESA_00538
KEGGiesa:ESA_00538
PATRICifig|290339.8.peg.482

Similar proteinsi

Entry informationi

Entry nameiCYSG1_CROS8
AccessioniPrimary (citable) accession number: A7MJ67
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: October 2, 2007
Last modified: March 28, 2018
This is version 79 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome
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Main funding by: National Institutes of Health