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- *****************************************
- * Triosephosphate isomerase active site *
- *****************************************
-
- Triosephosphate isomerase (EC 5.3.1.1) (TIM) [1] is the glycolytic enzyme that
- catalyzes the reversible interconversion of glyceraldehyde 3-phosphate and
- dihydroxyacetone phosphate. TIM plays an important role in several metabolic
- pathways and is essential for efficient energy production. It is a dimer of
- identical subunits, each of which is made up of about 250 amino-acid residues.
- A glutamic acid residue is involved in the catalytic mechanism [2]. The
- sequence around the active site residue is perfectly conserved in all known
- TIM's and can be used as a signature pattern for this type of enzyme.
-
- -Consensus pattern: A-Y-E-P-[LIVM]-W-[SA]-I-G-T-G
- [E is the active site residue]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: June 1994 / Pattern and text revised.
-
- [ 1] Lolis E., Alber T., Davenport R.C., Rose D., Hartman F.C., Petsko G.A.
- Biochemistry 29:6609-6618(1990).
- [ 2] Knowles J.R.
- Nature 350:121-124(1991).
-