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- * Beta-eliminating lyases pyridoxal-phosphate attachment site *
- ***************************************************************
-
- Tryptophan indole-lyase (EC 4.1.99.1) (tryptophanase) and tyrosine phenol-
- lyase (EC 4.1.99.2) (beta-tyrosinase) are related pyridoxal-phosphate
- dependent homotetrameric enzymes [1]. Tryptophan indole-lyase catalyzes the
- transformation of tryptophan into indole, pyruvate and ammonia and tyrosine
- phenol-lyase transforms tyrosine into phenol, pyruvate and ammonia.
-
- Both enzymes are proteins that contains 450 to 470 amino acids. The pyridoxal-
- phosphate group is attached to a lysine residue in the central section of the
- sequence.
-
- -Consensus pattern: Y-x-D-x(3)-M-S-[GA]-K-K-D-x-[LIVM](2)-x-[LIVM]-G-G
- [The 2nd K is the pyridoxal-P attachment site]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: October 1993 / First entry.
-
- [ 1] Iwamori S., Yoshino S., Ishiwata K., Makiguchi N.
- J. Ferment. Bioeng. 72:147-151(1991).
-