B4U605 (MTNC_HYDS0) Reviewed, UniProtKB/Swiss-Prot

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:	HY04AAS1_1512

Organism

Hydrogenobaculum sp. (strain Y04AAS1) [Complete proteome] [HAMAP]

Taxonomic identifier

380749 [NCBI]

Taxonomic lineage

Bacteria › Aquificae › Aquificales › Aquificaceae › Hydrogenobaculum

Protein attributes

Sequence length	221 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 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: InterPro 2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate phosphatase activity Inferred from electronic annotation. Source: InterPro acireductone synthase activity Inferred from electronic annotation. Source: EC magnesium ion binding Inferred from electronic annotation. Source: InterPro 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 – 221	221	Enolase-phosphatase E1 HAMAP MF_01681		PRO_0000357371

Sequences

	Sequence		Length	Mass (Da)
	B4U605 [UniParc]. Last modified September 23, 2008. Version 1. Checksum: 8D111CAC5712931E	FASTA	221	25,513
	10 20 30 40 50 60 MIKAILTDIE GTTSSINYVK DVMFGYSKKR LKDYLQTHWE EEHVKNIVKS LSQKLEKNID 70 80 90 100 110 120 LQTAVLVFKD FIEKDIKDTL LKELQGHIWE EGFKSGELKG HIYEDAYIKL KELKEKGYKI 130 140 150 160 170 180 FAYSSGSIKA QKLFFGYSVY GDITNFFDGF FDTTMGSKKD KNSYIKIASA TEIDPQMFLF 190 200 210 220 LSDVKEEINA SKEAGMNAIL VSRDRPCEEK DCIRDFTEIN L

References

[1]

"Complete and draft genome sequences of six members of the Aquificales." Reysenbach A.-L., Hamamura N., Podar M., Griffiths E., Ferreira S., Hochstein R., Heidelberg J., Johnson J., Mead D., Pohorille A., Sarmiento M., Schweighofer K., Seshadri R., Voytek M.A. J. Bacteriol. 191:1992-1993(2009) [PubMed: 19136599] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Y04AAS1.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP001130 Genomic DNA. Translation: ACG58195.1.
RefSeq	YP_002122173.1. NC_011126.1.
3D structure databases
ProteinModelPortal	B4U605.
ModBase	Search...
Protein-protein interaction databases
STRING	B4U605.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	6744343.
GenomeReviews	Gene locus HY04AAS1_1512 in contig CP001130_GR.
KEGG	hya:HY04AAS1_1512.
PATRIC	22137748. VBIHydSp64203_1518.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG294242.
OMA	TTDLNFI.
ProtClustDB	CLSK866737.
Family and domain databases
HAMAP	MF_01681. Salvage_MtnC. [Tree]
InterPro	IPR023943. Enolase-phosphatase_E1. IPR010041. Enolase_ppase. IPR023214. HAD-like_dom. IPR006439. HAD-SF_hydro_IA_v1. [Graphical view]
Gene3D	G3DSA:3.40.50.1000. HAD-like_dom. 1 hit.
KO	K09880.
SUPFAM	SSF56784. HAD-like_dom. 1 hit.
TIGRFAMs	TIGR01691. Enolase-ppase. 1 hit. TIGR01549. HAD-SF-IA-v1. 1 hit.
ProtoNet	Search...

Entry information

Entry name

MTNC_HYDS0

Accession

Primary (citable) accession number: B4U605

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 16, 2008
Last sequence update:	September 23, 2008
Last modified:	January 25, 2012
This is version 27 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program