CATH Classification

Domain Context

CATH Clusters

Superfamily Trypsin-like serine proteases
Functional Family Tryptase gamma 1

Enzyme Information

3.4.21.59
Tryptase.
based on mapping to UniProt Q15661
Preferential cleavage: Arg-|-Xaa, Lys-|-Xaa, but with more restricted specificity than trypsin.
-!- Occurs as a tetrameric molecule with high affinity for heparin, in mast cell granules. -!- Not inhibited by alpha-1-proteinase inhibitor of alpha-2- macroglobulin. -!- Belongs to peptidase family S1.

UniProtKB Entries (1)

Q15661
TRYB1_HUMAN
Homo sapiens
Tryptase alpha/beta-1

PDB Structure

PDB 5WI6
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Dual functionality of beta-tryptase protomers as both proteases and cofactors in the active tetramer.
Maun, H.R., Liu, P.S., Franke, Y., Eigenbrot, C., Forrest, W.F., Schwartz, L.B., Lazarus, R.A.
J. Biol. Chem.