Reviewed, UniProtKB/Swiss-Prot A1JSB7 (CYSG2_YERE8)

Names and origin

Protein names

Recommended name:
    Siroheme synthase 2
Including the following 3 domains:
    1- Recommended name:
            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- Recommended name:
            Precorrin-2 dehydrogenase
              EC=1.3.1.76
    3- Recommended name:
            Sirohydrochlorin ferrochelatase
              EC=4.99.1.4

Gene names

Name:	cysG2
Ordered Locus Names:	YE3968

Organism

Yersinia enterocolitica serotype O:8 / biotype 1B (strain 8081) [Complete proteome] [HAMAP]

Taxonomic identifier

393305 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Yersinia

Protein attributes

Sequence length	472 AA.
Sequence status	Complete.
Protein existence	Inferred 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 MF_01646
Catalytic activity	S-adenosyl-L-methionine + uroporphyrinogen III = S-adenosyl-L-homocysteine + precorrin-1. HAMAP MF_01646 S-adenosyl-L-methionine + precorrin-1 = S-adenosyl-L-homocysteine + precorrin-2. HAMAP MF_01646 Precorrin-2 + NAD+ = sirohydrochlorin + NADH. HAMAP MF_01646 Siroheme + 2 H+ = sirohydrochlorin + Fe2+. HAMAP MF_01646
Pathway	Cofactor biosynthesis; adenosylcobalamin biosynthesis; precorrin-2 from uroporphyrinogen III: step 1/1. HAMAP MF_01646 Cofactor biosynthesis; adenosylcobalamin biosynthesis; sirohydrochlorin from precorrin-2: step 1/1. Porphyrin metabolism; siroheme biosynthesis; precorrin-2 from uroporphyrinogen III: step 1/1. HAMAP MF_01646 Porphyrin metabolism; siroheme biosynthesis; siroheme from sirohydrochlorin: step 1/1. HAMAP MF_01646 Porphyrin metabolism; siroheme biosynthesis; sirohydrochlorin from precorrin-2: step 1/1.
Sequence similarities	Belongs to the precorrin methyltransferase family.

Ontologies

Keywords
Biological process	Cobalamin biosynthesis Porphyrin biosynthesis
Ligand	NAD S-adenosyl-L-methionine
Molecular function	Lyase Methyltransferase Oxidoreductase Transferase
Technical term	Complete proteome Multifunctional enzyme
Gene Ontology (GO)
Biological process	cobalamin biosynthetic process Inferred from electronic annotation. Source: HAMAP oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW siroheme biosynthetic process Inferred from electronic annotation. Source: HAMAP
Molecular function	binding Inferred from electronic annotation. Source: InterPro precorrin-2 dehydrogenase activity Inferred from electronic annotation. Source: HAMAP sirohydrochlorin ferrochelatase activity Inferred from electronic annotation. Source: EC uroporphyrin-III C-methyltransferase activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 472	472	Siroheme synthase 2 HAMAP MF_01646		PRO_0000330571
Regions
	Region	218 – 457	240	Uroporphyrinogen-III C-methyltransferase HAMAP MF_01646

Sequences

	Sequence		Length	Mass (Da)
	A1JSB7-1 [UniParc]. Last modified February 6, 2007. Version 1. Checksum: 51BE67EF4B78F238	FASTA	472	51,812
	10 20 30 40 50 60 MDYFPIFCQL QNKACLLVGG GEVAERKARL LLDAGAAVTV NACEFTEQFH DWAEQGLLSL 70 80 90 100 110 120 VSGEFAPELL AEKWLVIAAT DQVAVNALVY QSANQQRVFC NVVDDPKRTS FIMPSIIDRS 130 140 150 160 170 180 PIMIAISSGG KAPVLARLLR EKLEAMLPQH LGQLAQLAGN LRQRVKQHFA AMTDRRRFWE 190 200 210 220 230 240 KLLTHDRLAQ SLANEDQVQV EQHVEQLFNA PLSDRGEVVL VGAGPGDAGL LTLKGLQQIQ 250 260 270 280 290 300 QADVVVYDRL VSDEVMNLVR RDAERIFVGK ESGRHTVPQD QINQILLQQA QQGKRVVRLK 310 320 330 340 350 360 GGDPFIFGRG GEELETLADY NIPFSVVPGI TAASGCSAYS GIPLTHRDHA QSVRLITGHA 370 380 390 400 410 420 KKDSQLDWAN LAAEKQTLVF YMGLSQAGEI QQQLIRHGMP AATPVALVEN GTSRHQRVVS 430 440 450 460 470 GELSQLALLS QQVSSPSLII VGSVVSLREK LNWFSSAEHG KTGMKEQVER VG

References

[1]

"The complete genome sequence and comparative genome analysis of the high pathogenicity Yersinia enterocolitica strain 8081." Thomson N.R., Howard S., Wren B.W., Holden M.T.G., Crossman L., Challis G.L., Churcher C., Mungall K., Brooks K., Chillingworth T., Feltwell T., Abdellah Z., Hauser H., Jagels K., Maddison M., Moule S., Sanders M., Whitehead S. , Quail M.A., Dougan G., Parkhill J., Prentice M.B. PLoS Genet. 2:2039-2051(2006) [PubMed: 17173484] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBL GenBank DDBJ	AM286415 Genomic DNA. Translation: CAL13987.1.
RefSeq	YP_001008113.1.
3D structure databases
SMR	A1JSB7. Positions 1-456.
ModBase	Search...
Protein-protein interaction databases
STRING	A1JSB7.
Genome annotation databases
GeneID	4716180.
GenomeReviews	Gene locus YE3968 in contig AM286415_GR.
KEGG	yen:YE3968.
NMPDR	fig|630.2.peg.3898.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG0007.
HOGENOM	HBG730212.
OMA	MCRRDAE.
PhylomeDB	A1JSB7.
Family and domain databases
HAMAP	MF_01646. Siroheme_synth. [Tree]
InterPro	IPR000878. 4pyrrol_Mease. IPR014777. 4pyrrole_Mease_sub1. IPR014776. 4pyrrole_Mease_sub2. IPR006366. CobA_cysG_C. IPR016040. NAD(P)-bd_dom. IPR019478. Sirohaem_synthase_dimer_dom. IPR006367. Sirohaem_synthase_N. IPR003043. Uropor_MeTrfase_CS. [Graphical view]
Gene3D	G3DSA:3.40.1010.10. 4pyrrole_Mease_sub1. 1 hit. G3DSA:3.30.950.10. 4pyrrole_Mease_sub2. 1 hit. G3DSA:3.40.50.720. NAD(P)-bd. 1 hit.
Pfam	PF10414. CysG_dimeriser. 1 hit. PF00590. TP_methylase. 1 hit. [Graphical view]
TIGRFAMs	TIGR01469. cobA_cysG_Cterm. 1 hit. TIGR01470. cysG_Nterm. 1 hit.
PROSITE	PS00839. SUMT_1. 1 hit. PS00840. SUMT_2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

CYSG2_YERE8

Accession

Primary (citable) accession number: A1JSB7

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 29, 2008
Last sequence update:	February 6, 2007
Last modified:	February 9, 2010
This is version 28 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)