Reviewed, UniProtKB/Swiss-Prot A4FFQ6 (MTNC_SACEN)

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:	SACE_3607

Organism

Saccharopolyspora erythraea (strain NRRL 23338) [Complete proteome] [HAMAP]

Taxonomic identifier

405948 [NCBI]

Taxonomic lineage

Bacteria › Actinobacteria › Actinobacteridae › Actinomycetales › Pseudonocardineae › Pseudonocardiaceae › Saccharopolyspora

Protein attributes

Sequence length	240 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
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.
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.
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.
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	methionine biosynthetic process from S-adenosylmethionine Inferred from electronic annotation. Source: HAMAP methionine salvage 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
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 240	240	Enolase-phosphatase E1 HAMAP MF_01681		PRO_0000357394

Sequences

	Sequence		Length	Mass (Da)
	A4FFQ6-1 [UniParc]. Last modified April 17, 2007. Version 1. Checksum: 07AE1CDDEAF95FB3	FASTA	240	25,648
	10 20 30 40 50 60 MSASVAARWV VLDIEGTLTP TSQVHVVLYD YARPRLGPWI HDHPEDPVVR KAVEDVKSEA 70 80 90 100 110 120 GLPAEATAEQ VVAVLHGWMD ADRKAAPLKT LQGLIWQDGY ARGELTTDYF ADVVPALRAW 130 140 150 160 170 180 RQRGLVLAVF SSGSVAGQVA SFSHTTSGDL RGLFAQHFDT VNAGPKRERG SYEAIAAALG 190 200 210 220 230 240 AARPLQIVFL SDVPAELDAA AQAGWHTVGL ARPGEPYADA DFGSHPAVGA FDDIDIEVVS

References

[1]

"Complete genome sequence of the erythromycin-producing bacterium Saccharopolyspora erythraea NRRL23338." Oliynyk M., Samborskyy M., Lester J.B., Mironenko T., Scott N., Dickens S., Haydock S.F., Leadlay P.F. Nat. Biotechnol. 25:447-453(2007) [PubMed: 17369815] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	AM420293 Genomic DNA. Translation: CAM02881.1.
RefSeq	YP_001105806.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	A4FFQ6.
Genome annotation databases
GeneID	4943431.
GenomeReviews	Gene locus SACE_3607 in contig AM420293_GR.
KEGG	sen:SACE_3607.
Organism-specific databases
CMR	Search...
Phylogenomic databases
OMA	TTDLNFI.
Family and domain databases
HAMAP	MF_01681. [Tree]
InterPro	IPR005834. Dehalogen-like_hydro. IPR010041. Enolase_ppase. [Graphical view]
PANTHER	PTHR20371. Enolase_ppase. 1 hit.
Pfam	PF00702. Hydrolase. 1 hit. [Graphical view]
TIGRFAMs	TIGR01691. enolase-ppase. 1 hit.
ProtoNet	Search...

Entry information

Entry name

MTNC_SACEN

Accession

Primary (citable) accession number: A4FFQ6

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 16, 2008
Last sequence update:	April 17, 2007
Last modified:	November 3, 2009
This is version 19 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)