MetaCyc Enzyme: fructose 6-phosphate aldolase 2

Gene: fsaB Accession Numbers: EG11905 (MetaCyc), b3946, ECK3938

Synonyms: yijG, talC, FSA 2

Species: Escherichia coli K-12 substr. MG1655

Fructose 6-phosphate aldolase (FSA) is a novel enzyme activity. Its discovery in E. coli appears to be the first report of this activity in any organism. The fsaB (formerly talC, [Reizer95]) gene encodes a second FSA in E. coli whose activity has not been studied in detail. The enzyme is a class I aldolase. The physiological role of FSA is not yet known [Schurmann01].

FsaB: "fructose-six-phosphate aldolase B"

Locations: cytosol

Map Position: [4,137,069 <- 4,137,731]

Molecular Weight of Polypeptide: 23.555 kD (from nucleotide sequence)

Unification Links: ASAP:ABE-0012915 , EchoBASE:EB1850 , EcoGene:EG11905 , EcoliWiki:b3946 , ModBase:P32669 , OU-Microarray:b3946 , PortEco:fsaB , PR:PRO_000022710 , Protein Model Portal:P32669 , RefSeq:NP_418381 , RegulonDB:EG11905 , SMR:P32669 , String:511145.b3946 , Swiss-Model:P32669 , UniProt:P32669

Relationship Links: InterPro:IN-FAMILY:IPR001585 , InterPro:IN-FAMILY:IPR004731 , InterPro:IN-FAMILY:IPR013785 , InterPro:IN-FAMILY:IPR018225 , InterPro:IN-FAMILY:IPR023001 , Panther:IN-FAMILY:PTHR10683 , Pfam:IN-FAMILY:PF00923 , Prosite:IN-FAMILY:PS00958 , Prosite:IN-FAMILY:PS01054

Gene-Reaction Schematic: ?

Gene-Reaction Schematic

GO Terms:

Biological Process: GO:0005975 - carbohydrate metabolic process Inferred by computational analysis [UniProtGOA11a, GOA01a]
GO:0006000 - fructose metabolic process Inferred by computational analysis [GOA06]
Molecular Function: GO:0097023 - fructose 6-phosphate aldolase activity Inferred from experiment [Schurmann01]
GO:0003824 - catalytic activity Inferred by computational analysis [GOA01a]
GO:0016829 - lyase activity Inferred by computational analysis [UniProtGOA11a]
GO:0016832 - aldehyde-lyase activity Inferred by computational analysis [GOA06, GOA01a]
Cellular Component: GO:0005737 - cytoplasm Inferred by computational analysis [UniProtGOA11, UniProtGOA11a, GOA06]
GO:0005829 - cytosol Inferred by computational analysis [DiazMejia09]

MultiFun Terms: metabolism

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

Enzymatic reaction of: fructose 6-phosphate aldolase

EC Number: 4.1.2.-

β-D-fructofuranose 6-phosphate <=> dihydroxyacetone + D-glyceraldehyde 3-phosphate

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction of enzyme catalysis.

This reaction is reversible.

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

Sequence Features

Feature Class Location Citations Comment
Active-Site 85
UniProt: Non-Experimental Qualifier: by similarity;

10/20/97 Gene b3946 from Blattner lab Genbank (v. M52) entry merged into EcoCyc gene EG11905; confirmed by SwissProt match.


DiazMejia09: Diaz-Mejia JJ, Babu M, Emili A (2009). "Computational and experimental approaches to chart the Escherichia coli cell-envelope-associated proteome and interactome." FEMS Microbiol Rev 33(1);66-97. PMID: 19054114

GOA01a: GOA, DDB, FB, MGI, ZFIN (2001). "Gene Ontology annotation through association of InterPro records with GO terms."

GOA06: GOA, SIB (2006). "Electronic Gene Ontology annotations created by transferring manual GO annotations between orthologous microbial proteins."

Reizer95: Reizer J, Reizer A, Saier MH (1995). "Novel phosphotransferase system genes revealed by bacterial genome analysis--a gene cluster encoding a unique Enzyme I and the proteins of a fructose-like permease system." Microbiology 141 ( Pt 4);961-71. PMID: 7773398

Schurmann01: Schurmann M, Sprenger GA (2001). "Fructose-6-phosphate aldolase is a novel class I aldolase from Escherichia coli and is related to a novel group of bacterial transaldolases." J Biol Chem 2001;276(14);11055-61. PMID: 11120740

UniProt10a: UniProt Consortium (2010). "UniProt version 2010-07 released on 2010-06-15 00:00:00." Database.

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

UniProtGOA11a: 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 Tue Jul 28, 2015, biocyc12.