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Overview

Uniprot IDP07477
Protein NameSerine protease 1
Gene NamePRSS1
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
225 DGCAQKNKPGVYTKV

Function

Has activity against the synthetic substrates Boc-Phe-Ser-Arg-Mec, Boc-Leu-Thr-Arg-Mec, Boc-Gln-Ala-Arg-Mec and Boc-Val-Pro-Arg-Mec. The single-chain form is more active than the two-chain form against all of these substrates

Protein Sequence

10 MNPLLILTFV 20 AAALAAPFDD 30 DDKIVGGYNC 40 EENSVPYQVS 50 LNSGYHFCGG 60 SLINEQWVVS 70 AGHCYKSRIQ 80 VRLGEHNIEV 90 LEGNEQFINA 100 AKIIRHPQYD 110 RKTLNNDIML 120 IKLSSRAVIN 130 ARVSTISLPT 140 APPATGTKCL 150 ISGWGNTASS 160 GADYPDELQC 170 LDAPVLSQAK 180 CEASYPGKIT 190 SNMFCVGFLE 200 GGKDSCQGDS 210 GGPVVCNGQL 220 QGVVSWGDGC 230 AQKNKPGVYT 240 KVYNYVKWIK NTIAANS

Gene Ontology

Classification GO ID Description
Cellular Component GO:0072562 blood microparticle
Cellular Component GO:0031012 extracellular matrix
Cellular Component GO:0005576 extracellular region
Cellular Component GO:0005615 extracellular space
Molecular Function GO:0046872 metal ion binding
Molecular Function GO:0004252 serine-type endopeptidase activity
Biological Process GO:0007586 digestion
Biological Process GO:0022617 extracellular matrix disassembly
Biological Process GO:0006508 proteolysis

Reference

[1] Wu Q, Li Z, Gong T, Zheng X, Zhou X et al.. Porphyromonas gingivalis infection induces lysine lactylation reprogramming in human umbilical vein endothelial cells.. Front Cell Infect Microbiol 16:1706727. 2026. PMID: 41696360.