Uroporphyrinogen-III C-methyltransferase
     (Urogen III methylase)
     (EC 2.1.1.107)
     (SUMT)
     (Uroporphyrinogen III methylase)
     (UROM)
Precorrin-2 dehydrogenase
     (EC 1.3.1.76)
Sirohydrochlorin ferrochelatase
     (EC 4.99.1.4)

Gene name

	Name:	cysG
	OrderedLocusNames:	BPEN_166

From

Blochmannia pennsylvanicus (strain BPEN)

[TaxID: 291272]

[HAMAP proteome]

Taxonomy

Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacteriales; Enterobacteriaceae; ant endosymbionts; Candidatus Blochmannia.

Protein existence

3: Inferred from homology;

References

[1]

NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
DOI=10.1101/gr.3771305; PubMed=16077009 [NCBI, ExPASy, EBI, Israel, Japan]
Degnan P.H., Lazarus A.B., Wernegreen J.J.;
"Genome sequence of Blochmannia pennsylvanicus indicates parallel evolutionary trends among bacterial mutualists of insects.";
Genome Res. 15:1023-1033(2005).

Comments

FUNCTION: Multifunctional enzyme that catalyze 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 consist of the NAD-dependent oxidation of precorrin-2 into sirohydrochlorin and its subsequent ferrochelation into siroheme (By similarity).
CATALYTIC ACTIVITY: S-adenosyl-L-methionine + uroporphyrinogen III = S-adenosyl-L-homocysteine + precorrin-1.
CATALYTIC ACTIVITY: S-adenosyl-L-methionine + precorrin-1 = S-adenosyl-L-homocysteine + precorrin-2.
CATALYTIC ACTIVITY: Precorrin-2 + NAD⁺ = sirohydrochlorin + NADH.
CATALYTIC ACTIVITY: Siroheme + 2 H⁺ = sirohydrochlorin + Fe²⁺.
PATHWAY: Cofactor biosynthesis; adenosylcobalamin biosynthesis; precorrin-2 from uroporphyrinogen III: step 1/1 .
PATHWAY: Cofactor biosynthesis; adenosylcobalamin biosynthesis; sirohydrochlorin from precorrin-2: step 1/1 .
PATHWAY: Porphyrin metabolism; siroheme biosynthesis; precorrin-2 from uroporphyrinogen III: step 1/1 .
PATHWAY: Porphyrin metabolism; siroheme biosynthesis; siroheme from sirohydrochlorin: step 1/1 .
PATHWAY: Porphyrin metabolism; siroheme biosynthesis; sirohydrochlorin from precorrin-2: step 1/1 .
SIMILARITY: Belongs to the precorrin methyltransferase family.

Copyright

Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.

Cross-references

Sequence databases

EMBL

CP000016; AAZ40806.1; -; Genomic_DNA.

[EMBL / GenBank / DDBJ] [CoDingSequence]

RefSeq

YP_277679.1; -.

3D structure databases

ModBase

Q493N1.

Ontologies

GO:0043115;	Molecular function: precorrin-2 dehydrogenase activity (inferred from electronic annotation from HAMAP).
GO:0051266;	Molecular function: sirohydrochlorin ferrochelatase activity (inferred from electronic annotation from EC).
GO:0004851;	Molecular function: uroporphyrin-III C-methyltransferase activity (inferred from electronic annotation from HAMAP).
GO:0009236;	Biological process: cobalamin biosynthetic process (inferred from electronic annotation from HAMAP).
GO:0019354;	Biological process: siroheme biosynthetic process (inferred from electronic annotation from HAMAP).
QuickGo view.

Family and domain databases

HAMAP

MF_01646; -; 1.
PBIL [Tree]

InterPro

IPR000878; 4pyrrol_Mease.
IPR014777; 4pyrrole_Mease_sub1.
IPR014776; 4pyrrole_Mease_sub2.
IPR006366; CobA_cysG_C.
IPR006367; CysG_synth_N.
IPR016040; NAD(P)-bd.
IPR003043; Uropor_MeTrfase_CS.
Graphical view of domain structure.

Gene3D

G3DSA:3.40.1010.10; 4pyrrole_Mease_sub1; 1.
G3DSA:3.30.950.10; 4pyrrole_Mease_sub2; 1.
G3DSA:3.40.50.720; NAD(P)-bd; 1.

Pfam

PF00590; TP_methylase; 1.
Pfam graphical view of domain structure.

TIGRFAMs

TIGR01469; cobA_cysG_Cterm; 1.
TIGR01470; cysG_Nterm; 1.

PROSITE

PS00839; SUMT_1; 1.
PS00840; SUMT_2; 1.

BLOCKS

Q493N1.

Genome annotation databases

GeneID

3563112; -.

GenomeReviews

CP000016_GR; BPEN_166.

KEGG

bpn:BPEN_166; -.

Phylogenomic databases

HOGENOM

Q493N1; -.

Genome annotation databases

CMR

Q493N1; BPEN_166.

Other

ProtoNet

Q493N1.

UniRef

View cluster of proteins with at least 50% / 90% / 100% identity.

Keywords

Cobalamin biosynthesis; Complete proteome; Lyase; Methyltransferase; Multifunctional enzyme; NAD; Oxidoreductase; Porphyrin biosynthesis; S-adenosyl-L-methionine; Transferase.

Features

Feature table viewer

Feature aligner

`Key`	`From To`	`Length`	`Description`	`FTId`
`CHAIN`	`1 474`	`474`	`Siroheme synthase.`	`PRO_0000330495`
`REGION`	`220 460`	`241`	`Uroporphyrinogen-III C-methyltransferase.`

Sequence information

Length: 474 AA [This is the length of the unprocessed precursor]

Molecular weight: 52601 Da [This is the MW of the unprocessed precursor]

CRC64: F752193534C6FD69 [This is a checksum on the sequence]

        10         20         30         40         50         60 
MEYLPIFIDL KNRPVLVVGG GAVAARKIHM LQRATITIVA PALCTELKKV LIKQNISWIS 

        70         80         90        100        110        120 
KNFQPIMLNK VILVIVATND SKLNTFIYQN AEKHNILINT VDDKNKCSFI FPAIIDRNPV 

       130        140        150        160        170        180 
LIGISSCGKA PILVRILREK LELLLPKSLG FVAKLAGAWR NKVKQHIVDT VLRRQFWEKI 

       190        200        210        220        230        240 
FYNGHVVTLM EKGRPKEANK VLNYALNNSV KNKNNKTGHV TLVGAGPGDI GLLTIRGLQV 

       250        260        270        280        290        300 
IQQADIILYD YLVNSDILDL ARRDADKICV GKHVGNHSIS QKKLNQFIVQ LAQKGNKVVR 

       310        320        330        340        350        360 
LKGGDPFIFG RGGEELQAIS EAGIAFQVVP GITAGIGVAA YSGIPLTHRK YAHSVVFITG 

       370        380        390        400        410        420 
HNTNGDNQFN WNSLSNNQQT LVIYMGKINA ISIRNNLIIH GRNMHTPVAV ISRGTYQDQK 

       430        440        450        460        470 
ILIGTLIELE KLTQMADHPA LLVIGDVVSL HSKINWFGQK ALHYYLINSI INLI

Q493N1 in FASTA format

View entry in original UniProtKB/Swiss-Prot format
View entry in raw text format (no links)
Report form for errors/updates in this UniProtKB/Swiss-Prot entry

	BLAST submission on ExPASy/SIB or at NCBI (USA)		Sequence analysis tools: ProtParam, ProtScale, Compute pI/Mw, PeptideMass, PeptideCutter, Dotlet (Java)
	ScanProsite, MotifScan		Submit a homology modeling request to SWISS-MODEL
	NPSA Sequence analysis tools