Reviewed, UniProtKB/Swiss-Prot Q2FLB5 (ENO2_METHJ)

Names and origin

Protein names

Recommended name:
    Enolase 2
    EC=4.2.1.11
Alternative name(s):
    2-phosphoglycerate dehydratase 2
    2-phospho-D-glycerate hydro-lyase 2

Gene names

Name:	eno2
Ordered Locus Names:	Mhun_1101

Organism

Methanospirillum hungatei (strain JF-1 / DSM 864) [Complete proteome] [HAMAP]

Taxonomic identifier

323259 [NCBI]

Taxonomic lineage

Archaea › Euryarchaeota › Methanomicrobia › Methanomicrobiales › Methanospirillaceae › Methanospirillum

Protein attributes

Sequence length	426 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Catalyzes the reversible conversion of 2-phosphoglycerate into phosphoenolpyruvate. It is essential for the degradation of carbohydrates via glycolysis By similarity.
Catalytic activity	2-phospho-D-glycerate = phosphoenolpyruvate + H2O. HAMAP MF_00318
Cofactor	Magnesium. Required for catalysis and for stabilizing the dimer By similarity.
Enzyme regulation	The covalent binding to the substrate causes inactivation of the enzyme, and possibly serves as a signal for the export of the protein By similarity.
Pathway	Carbohydrate degradation; glycolysis; pyruvate from D-glyceraldehyde 3-phosphate: step 4/5. HAMAP MF_00318
Subcellular location	Cytoplasm. Secreted. Cell surface. Note: Fractions of enolase are present in both the cytoplasm and on the cell surface. The export of enolase possibly depends on the covalent binding to the substrate; once secreted, it remains attached to the archaeal cell surface By similarity.
Sequence similarities	Belongs to the enolase family.

Ontologies

Keywords
Biological process	Glycolysis
Cellular component	Cytoplasm Secreted
Ligand	Magnesium Metal-binding
Molecular function	Lyase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	glycolysis Inferred from electronic annotation. Source: HAMAP
Cellular component	cell surface Inferred from electronic annotation. Source: UniProtKB-SubCell extracellular region Inferred from electronic annotation. Source: UniProtKB-SubCell phosphopyruvate hydratase complex Inferred from electronic annotation. Source: InterPro
Molecular function	magnesium ion binding Inferred from electronic annotation. Source: HAMAP phosphopyruvate hydratase activity 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 – 426	426	Enolase 2 HAMAP MF_00318		PRO_0000267145
Regions
	Region	364 – 367	4	Substrate binding By similarity
Sites
	Active site	205	1	Proton donor By similarity
	Active site	337	1	Proton acceptor By similarity
	Metal binding	242	1	Magnesium By similarity
	Metal binding	285	1	Magnesium By similarity
	Metal binding	312	1	Magnesium By similarity
	Binding site	154	1	Substrate By similarity
	Binding site	164	1	Substrate By similarity
	Binding site	285	1	Substrate By similarity
	Binding site	312	1	Substrate By similarity
	Binding site	337	1	Substrate (covalent); in inhibited form By similarity
	Binding site	388	1	Substrate By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q2FLB5-1 [UniParc]. Last modified March 21, 2006. Version 1. Checksum: 837A41A682260B22	FASTA	426	46,126
	10 20 30 40 50 60 MDTRIKRIIA REILDSRGNP TVEVDITLNN GIRGRAACPS GASTGIHEAV ERRDGEKRFG 70 80 90 100 110 120 GKGVQGAVQA VMDIISPKLL GRDALEQKSI DSVMIELDGT PNKAKLGANA ILTVSMAVAR 130 140 150 160 170 180 AAANSEDVLL SEYLGPKSTL MPVPCMNIMN GGAHANWQGS DFQEYMIAPV GAPDYPEAVR 190 200 210 220 230 240 WGCEVYHSLK SVLKKKGLST GVGDEGGFAP IVPSNLEPAS LIVHAIEEAG YIPGKDIALV 250 260 270 280 290 300 LDPASSGFYK DGKYTLKTEK KVLTSEEMTD YYEDMIRTYP IISIEDGLAE DDWEGFAFMT 310 320 330 340 350 360 KRLGNTIQIV GDDIFVTNPE RIHRGLKEKT ANAVLIKLNQ IGTVTETIDA IRLAQKAGWG 370 380 390 400 410 420 TMVSHRSGET CDSFIADLTV ALGCGQLKTG APCRGERVEK YNQLLRINEF LGDKARYAGR QAFNSA

References

[1]

"Complete sequence of Methanospirillum hungatei JF-1." Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T., Hammon N., Israni S., Pitluck S., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Kiss H., Schmutz J., Larimer F., Land M. , Kyrpides N., Ivanova N., McInerney M.J., Brockman F., Culley D., Ferry J.G., Gunsalus R.P., Morrison M., Plugge C., Scholten J., Stams A.J.M., Boone D.R., Richardson P. Submitted (JAN-2006) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	CP000254 Genomic DNA. Translation: ABD40850.1.
RefSeq	YP_502569.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	3922134.
GenomeReviews	Gene locus Mhun_1101 in contig CP000254_GR.
KEGG	mhu:Mhun_1101.
NMPDR	fig|323259.5.peg.1159.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q2FLB5.
OMA	Q2FLB5. HARTVYD.
Enzyme and pathway databases
BioCyc	MHUN323259:MHUN_1101-MON.
Family and domain databases
HAMAP	MF_00318. [Tree]
InterPro	IPR000941. Enolase. [Graphical view]
PANTHER	PTHR11902. Enolase. 1 hit.
Pfam	PF00113. Enolase_C. 1 hit. PF03952. Enolase_N. 1 hit. [Graphical view]
PIRSF	PIRSF001400. Enolase. 1 hit.
PRINTS	PR00148. ENOLASE.
ProDom	PD000902. Enolase. 1 hit. [Graphical view] [Entries sharing at least one domain]
TIGRFAMs	TIGR01060. eno. 1 hit.
PROSITE	PS00164. ENOLASE. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

ENO2_METHJ

Accession

Primary (citable) accession number: Q2FLB5

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 12, 2006
Last sequence update:	March 21, 2006
Last modified:	June 16, 2009
This is version 29 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)