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- *****************************************************
- * Phosphoenolpyruvate carboxykinase (ATP) signature *
- *****************************************************
-
- Phosphoenolpyruvate carboxykinase (ATP) (EC 4.1.1.49) (PEPCK) [1] catalyzes
- the formation of phosphoenolpyruvate by decarboxylation of oxaloacetate while
- hydrolyzing ATP, a rate limiting step in gluconeogenesis (the biosynthesis of
- glucose).
-
- The sequence of this enzyme has been obtained from Escherichia coli, yeast,
- and Trypanosoma brucei; these three sequences are evolutionary related and
- share many regions of similarity. As a signature pattern we selected a highly
- conserved region that contains four acidic residues and which is located in
- the central part of the enzyme. The beginning of the pattern is located about
- 10 residues to the C-terminus of a putative ATP-binding site.
-
- -Consensus pattern: L-I-G-D-D-E-H-x-W-x-D-x-G-V-F-N
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
-
- -Note: phosphoenolpyruvate carboxykinase (GTP) (EC 4.1.1.32) an enzyme that
- catalyzes the same reaction, but using GTP instead of ATP, is not related to
- the above enzyme (see the relevant section).
-
- -Last update: December 1991 / First entry.
-
- [ 1] Medina V., Pontarollo R., Glaeske D., Tabel H., Goldie H.
- J. Bacteriol. 172:7151-7156(1990).
-