Reviewed, UniProtKB/Swiss-Prot B0TM50 (MTNC_SHEHH)

Names and origin

Protein names

Recommended name:
    Enolase-phosphatase E1
    EC=3.1.3.77
Alternative name(s):
    2,3-diketo-5-methylthio-1-phosphopentane phosphatase

Gene names

Name:	mtnC
Ordered Locus Names:	Shal_0067

Organism

Shewanella halifaxensis (strain HAW-EB4) [Complete proteome] [HAMAP]

Taxonomic identifier

458817 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Alteromonadales › Shewanellaceae › Shewanella

Protein attributes

Sequence length	225 AA.
Sequence status	Complete.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Bifunctional enzyme that catalyzes the enolization of 2,3-diketo-5-methylthiopentyl-1-phosphate (DK-MTP-1-P) into the intermediate 2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate (HK-MTPenyl-1-P), which is then dephosphorylated to form the acireductone 1,2-dihydroxy-3-keto-5-methylthiopentene (DHK-MTPene) By similarity. HAMAP MF_01681
Catalytic activity	5-(methylthio)-2,3-dioxopentyl phosphate + H2O = 1,2-dihydroxy-5-(methylthio)pent-1-en-3-one + phosphate. HAMAP MF_01681
Cofactor	Binds 1 magnesium ion per subunit By similarity. HAMAP MF_01681
Pathway	Amino-acid biosynthesis; L-methionine biosynthesis via salvage pathway; L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate: step 3/6. HAMAP MF_01681 Amino-acid biosynthesis; L-methionine biosynthesis via salvage pathway; L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate: step 4/6.
Subunit structure	Monomer By similarity. HAMAP MF_01681
Sequence similarities	Belongs to the HAD-like hydrolase superfamily. MasA/mtnC family.

Ontologies

Keywords
Biological process	Amino-acid biosynthesis Methionine biosynthesis
Ligand	Magnesium Metal-binding
Molecular function	Hydrolase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	L-methionine biosynthetic process from S-adenosylmethionine Inferred from electronic annotation. Source: HAMAP L-methionine salvage from methylthioadenosine Inferred from electronic annotation. Source: InterPro
Molecular function	2,3-diketo-5-methylthiopentyl-1-phosphate enolase activity Inferred from electronic annotation. Source: HAMAP 2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate phosphatase activity Inferred from electronic annotation. Source: HAMAP acireductone synthase activity Inferred from electronic annotation. Source: EC magnesium ion binding Inferred from electronic annotation. Source: HAMAP phosphoglycolate phosphatase activity Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 225	225	Enolase-phosphatase E1 HAMAP MF_01681		PRO_0000357402

Sequences

	Sequence		Length	Mass (Da)
	B0TM50-1 [UniParc]. Last modified April 8, 2008. Version 1. Checksum: 99E284660613BB89	FASTA	225	25,070
	10 20 30 40 50 60 MGIRAIVVDT AGTTTDLNFI EEILFPYSAK ALPAFLEENQ HNVLVENCIC DVQDIALEPD 70 80 90 100 110 120 ASLARVTEIL LQWIKEDRKA TPLKTIQGLI WKQGYANGEF KGHIFPDFIE ALDGYKQQGL 130 140 150 160 170 180 RVYSFSSGSV EAQKLLFSHS DAGDLNDKFN GHFDTRTGNK RFKQAYCNIV NTISLSPKQI 190 200 210 220 LFVSDVLEEL KAASEAGLNV VQMVRDDSQR TGDFKTISSF AELSI

References

[1]

"Complete sequence of Shewanella halifaxensis HAW-EB4." Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H., Bruce D., Goodwin L., Pitluck S., Sims D., Brettin T., Detter J.C., Han C., Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L. , Kyrpides N., Kim E., Zhao J.-S., Richardson P. Submitted (JAN-2008) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000931 Genomic DNA. Translation: ABZ74643.1.
RefSeq	YP_001672302.1.
3D structure databases
SMR	B0TM50. Positions 2-225.
ModBase	Search...
Genome annotation databases
GeneID	5904614.
GenomeReviews	Gene locus Shal_0067 in contig CP000931_GR.
KEGG	shl:Shal_0067.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG294242.
OMA	TTDLNFI.
Family and domain databases
HAMAP	MF_01681. Salvage_MtnC. [Tree]
InterPro	IPR010041. Enolase_ppase. IPR006439. HAD-SF_hydro_IA_v1. IPR005833. Haloacid_DH/epoxide_hydro. [Graphical view]
PANTHER	PTHR20371. Enolase_ppase. 1 hit.
PRINTS	PR00413. HADHALOGNASE.
TIGRFAMs	TIGR01691. enolase-ppase. 1 hit. TIGR01549. HAD-SF-IA-v1. 1 hit.
ProtoNet	Search...

Entry information

Entry name

MTNC_SHEHH

Accession

Primary (citable) accession number: B0TM50

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 16, 2008
Last sequence update:	April 8, 2008
Last modified:	February 9, 2010
This is version 16 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)