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:	NMCC_1074

From

Neisseria meningitidis serogroup C (strain 053442)

[TaxID: 374833]

[HAMAP proteome]

Taxonomy

Bacteria; Proteobacteria; Betaproteobacteria; Neisseriales; Neisseriaceae; Neisseria.

Protein existence

3: Inferred from homology;

References

[1]

NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
DOI=10.1016/j.ygeno.2007.10.004; PubMed=18031983 [NCBI, ExPASy, EBI, Israel, Japan]
Peng J., Yang L., Yang F., Yang J., Yan Y., Nie H., Zhang X., Xiong Z., Jiang Y., Cheng F., Xu X., Chen S., Sun L., Li W., Shen Y., Shao Z., Liang X., Xu J., Jin Q.;
"Characterization of ST-4821 complex, a unique Neisseria meningitidis clone.";
Genomics 91:78-87(2008).

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

CP000381; ABX73254.1; -; Genomic_DNA.

[EMBL / GenBank / DDBJ] [CoDingSequence]

RefSeq

YP_001599210.1; -.

3D structure databases

ModBase

A9LZ77.

Ontologies

GO:0004325;	Molecular function: ferrochelatase activity (inferred from electronic annotation from HAMAP).
GO:0043115;	Molecular function: precorrin-2 dehydrogenase activity (inferred from electronic annotation from HAMAP).
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

IPR014777; 4pyrrole_Mease_sub1.
IPR014776; 4pyrrole_Mease_sub2.
IPR006366; CobA_cysG_C.
IPR006367; CysG_synth_N.
IPR016040; NAD(P)-bd.
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.

TIGRFAMs

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

PROSITE

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

BLOCKS

A9LZ77.

Genome annotation databases

GeneID

5795216; -.

GenomeReviews

CP000381_GR; NMCC_1074.

KEGG

nmn:NMCC_1074; -.

CMR

A9LZ77; NMCC_1074.

Other

ProtoNet

A9LZ77.

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`	`1 480`	`480`	`Siroheme synthase.`	`PRO_0000330523`
`REGION`	`216 456`	`241`	`Uroporphyrinogen-III C-methyltransferase.`

Sequence information

Length: 480 AA [This is the length of the unprocessed precursor]

Molecular weight: 51867 Da [This is the MW of the unprocessed precursor]

CRC64: EAD97FA6BA13CBAF [This is a checksum on the sequence]

        10         20         30         40         50         60 
MNYFPIFANL AGRPVLVVGG GSVAARKISL LLDAGAQVRV VANQLNAELS ALAAENKILW 

        70         80         90        100        110        120 
LAEEFRAEHI RTVFLIIAAS SDQALNRRVF QLAESCQKPV NVVDDRDYCS FIFPSIINRN 

       130        140        150        160        170        180 
PIQIAVSSSG SAPVLARLLR EKLEALLPHS LGDMAEISGR WRDAVKAKLK SVTERRRFWE 

       190        200        210        220        230        240 
KQFNGRFAAL VKNQQTAQAE QELAKQLEQN YQGGFVSLVG AGPGDAGLLT LKGLQEIQQA 

       250        260        270        280        290        300 
DVVLYDALVS DGILSLVRRD AERIFVGKRA RGDRTPQEDT NALMVRLARE GRRVVRLKGG 

       310        320        330        340        350        360 
DPFVFGRGGE ELETLARHQI PFSVVPGITA AVGATAYAGI PLTHRDYAQS AVFVTGHRKA 

       370        380        390        400        410        420 
DAPDIEWQTL ARSRQTLVIY MGALKAALIA ERLQQHGRSP DTPAAVISQG TLPAQKTATG 

       430        440        450        460        470        480 
TLANLAELAE TAPNPALIVI GEVVGLHEKL AWFGENGEGE NRVGQAYPAL GGLNAGQRAA

A9LZ77 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