serine protease 3

Target id: 2399

Nomenclature: serine protease 3

Family: S1: Chymotrypsin

Annotation status:  image of a grey circle Awaiting annotation/under development. Please contact us if you can help with annotation.  » Email us

   GtoImmuPdb view: OFF :     Currently no data for serine protease 3 in GtoImmuPdb

Gene and Protein Information
Species TM AA Chromosomal Location Gene Symbol Gene Name Reference
Human - 304 9p13 PRSS3 serine protease 3
Mouse - 246 6 B1 Prss3 protease, serine 3
Rat - - q22 LOC679835 similar to Anionic trypsin II precursor (Pretrypsinogen II)
Previous and Unofficial Names
mesotrypsin | MTG | PRSS4 | Try3 | TRY4 | trypsin 3 | trypsinogen 15 | protease, serine, 3 | protease, serine 3 | protease
Database Links
Specialist databases
MEROPS S01.174 (Hs)
Other databases
ChEMBL Target
Ensembl Gene
Entrez Gene
GenitoUrinary Development Molecular Anatomy Project
Human Protein Atlas
KEGG Enzyme
RefSeq Nucleotide
RefSeq Protein
Enzyme Reaction
EC Number:

Download all structure-activity data for this target as a CSV file

Key to terms and symbols Click column headers to sort
Ligand Sp. Action Affinity Units Reference
BPTI-K15R/R17G Hs Inhibition 8.2 pKi 1
pKi 8.2 (Ki 5.9x10-9 M) [1]
Inhibitor Comments
BPTI-K15R/R17G retains inhibitory activity towards human cationic trypsin and human anionic trypsin, but activity is weakened compared to wild type BPTI [1].


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1. Salameh MA, Soares AS, Hockla A, Radisky DC, Radisky ES. (2011) The P(2)' residue is a key determinant of mesotrypsin specificity: engineering a high-affinity inhibitor with anticancer activity. Biochem. J.440 (1): 95-105. [PMID:21806544]

How to cite this page

S1: Chymotrypsin: serine protease 3. Last modified on 27/02/2018. Accessed on 19/03/2018. IUPHAR/BPS Guide to PHARMACOLOGY,