MetaCyc Polypeptide: glycolate oxidase, predicted FAD-binding subunit

Gene: glcE Accession Numbers: G7544 (MetaCyc), b4468, ECK2973

Synonyms: yghL, gox, b2978 (obsolete)

Species: Escherichia coli K-12 substr. MG1655

Component of: glycolate oxidase (summary available)

Map Position: [3,123,492 <- 3,124,544]

Molecular Weight of Polypeptide: 38.361 kD (from nucleotide sequence), 40 kD (experimental) [Pellicer96 ]

Unification Links: ASAP:ABE-0174098 , EchoBASE:EB2819 , EcoGene:EG12996 , EcoliWiki:b4468 , ModBase:P52073 , PortEco:glcE , Protein Model Portal:P52073 , RefSeq:YP_026191 , RegulonDB:G7544 , SMR:P52073 , String:511145.b4468 , UniProt:P52073

Relationship Links: InterPro:IN-FAMILY:IPR006094 , InterPro:IN-FAMILY:IPR016164 , InterPro:IN-FAMILY:IPR016166 , InterPro:IN-FAMILY:IPR016169 , InterPro:IN-FAMILY:IPR016171 , OU-Microarray:RELATED-TO:b2978 , Pfam:IN-FAMILY:PF01565 , Prosite:IN-FAMILY:PS51387

Gene-Reaction Schematic: ?

Gene-Reaction Schematic

GO Terms:

Biological Process: GO:0046296 - glycolate catabolic process Inferred from experiment [Pellicer96]
GO:0055114 - oxidation-reduction process Inferred by computational analysis [UniProtGOA11, GOA01]
Molecular Function: GO:0019154 - glycolate dehydrogenase activity Inferred from experiment [Pellicer96]
GO:0003824 - catalytic activity Inferred by computational analysis [GOA01]
GO:0008762 - UDP-N-acetylmuramate dehydrogenase activity Inferred by computational analysis [GOA01]
GO:0016491 - oxidoreductase activity Inferred by computational analysis [UniProtGOA11]
GO:0016614 - oxidoreductase activity, acting on CH-OH group of donors Inferred by computational analysis [GOA01]
GO:0050660 - flavin adenine dinucleotide binding Inferred by computational analysis [GOA01]

MultiFun Terms: metabolism central intermediary metabolism glycolate metabolism

Imported from EcoCyc 02-Jun-2015 by Paley S , SRI International

Subunit of: glycolate oxidase

Species: Escherichia coli K-12 substr. MG1655

Subunit composition of glycolate oxidase = [GlcD][GlcE][GlcF]
         glycolate oxidase, predicted FAD-linked subunit = GlcD
         glycolate oxidase, predicted FAD-binding subunit = GlcE
         glycolate oxidase, predicted iron-sulfur subunit = GlcF (summary available)

Glycolate oxidase catalyzes the first step in the utilization of glycolate as the sole source of carbon [Lord72]. The enzyme may be membrane-associated; Sallal and Nimer ([Sallal89]) isolated a cytoplasmic membrane-associated glycolate oxidoreductase activity from E. coli ATCC11775 (serovar O1:K1:H7), and the GlcF subunit itself could only be detected in the membrane fraction [Pellicer96]. The physiological electron acceptor is unknown.

Crude extracts from an E. coli strain expressing glcDEF from a multicopy plasmid contain glycolate oxidase activity. Insertion mutants in either glcD, glcE, or glcF abolish this activity, suggesting that all three gene products are subunits of a glycolate oxidase complex [Pellicer96].

Expression of the glcDEFGB operon is induced by growth on glycolate [Pellicer99a].

Created in EcoCyc 30-Nov-2006 by Keseler I , SRI International
Imported from EcoCyc 02-Jun-2015 by Paley S , SRI International

Enzymatic reaction of: glycolate oxidase

Synonyms: glycolate oxidoreductase, glycolate:(acceptor) 2-oxidoreductase, glycolate dehydrogenase

EC Number:

glycolate + an oxidized unknown electron acceptor <=> glyoxylate + an reduced unknown electron acceptor

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the Enzyme Commission system.

The reaction is favored in the direction shown.

Alternative Substrates for glycolate [Lord72 ]: (R)-lactate [Comment 1 , Lord72 ]

In Pathways: superpathway of glycol metabolism and degradation , glycolate and glyoxylate degradation II , glycolate and glyoxylate degradation I

Imported from EcoCyc 02-Jun-2015 by Paley S , SRI International

Inhibitors (Unknown Mechanism): Zn2+ [Lord72] , copper sulfate [Lord72] , p-chloromercuribenzoate [Lord72] , Hg2+ [Lord72] , potassium cyanide [Lord72]

Kinetic Parameters:

Km (μM)

pH(opt): 8-8.8 [Lord72]

Sequence Features

Feature Class Location Citations Comment
Conserved-Region 1 -> 173
UniProt: FAD-binding PCMH-type;

Markus Krummenacker on Tue Oct 14, 1997:
Gene object created from Blattner lab Genbank (v. M52) entry.


GOA01: GOA, DDB, FB, MGI, ZFIN (2001). "Gene Ontology annotation through association of InterPro records with GO terms."

Lord72: Lord JM (1972). "Glycolate oxidoreductase in Escherichia coli." Biochim Biophys Acta 1972;267(2);227-37. PMID: 4557653

Pellicer96: Pellicer MT, Badia J, Aguilar J, Baldoma L (1996). "glc locus of Escherichia coli: characterization of genes encoding the subunits of glycolate oxidase and the glc regulator protein." J Bacteriol 1996;178(7);2051-9. PMID: 8606183

Pellicer99a: Pellicer MT, Fernandez C, Badia J, Aguilar J, Lin EC, Baldom L (1999). "Cross-induction of glc and ace operons of Escherichia coli attributable to pathway intersection. Characterization of the glc promoter." J Biol Chem 274(3);1745-52. PMID: 9880556

Sallal89: Sallal AK, Nimer NA (1989). "The intracellular localization of glycolate oxidoreductase in Escherichia coli." FEBS Lett 1989;258(2);277-80. PMID: 2689218

UniProt09: UniProt Consortium (2009). "UniProt version 15.8 released on 2009-10-01 00:00:00." Database.

UniProtGOA11: UniProt-GOA (2011). "Gene Ontology annotation based on manual assignment of UniProtKB keywords in UniProtKB/Swiss-Prot entries."

Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
Page generated by SRI International Pathway Tools version 19.0 on Wed Oct 7, 2015, biocyc13.