Papain

Papain family cysteine protease
Papain from Carica papaya
Identifiers
SymbolPeptidase_C1
PfamPF00112
InterProIPR000668
PROSITEPDOC00126
SCOP21aec / SCOPe / SUPFAM
Available protein structures:
Pfam  structures / ECOD  
PDBRCSB PDB; PDBe; PDBj
PDBsumstructure summary
papain
Identifiers
EC no.3.4.22.2
CAS no.9001-73-4
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Search
PMCarticles
PubMedarticles
NCBIproteins

Papain, also known as papaya proteinase I, is a cysteine protease (EC 3.4.22.2) enzyme present in papaya (Carica papaya) and mountain papaya (Vasconcellea cundinamarcensis). It is the namesake member of the papain-like protease family.

It has wide ranging commercial applications in the leather, cosmetic, textiles, detergents, food and pharmaceutical industries. In the food industry, papain is used as an active ingredient in many commercial meat tenderizers.[1]

  1. ^ Islam MN, Molinar-Toribio EM (July–December 2013). "Development of a meat tenderizer based on papaya peel. Observación por Pares Basada en Mapas Conceptuales: Una Estrategia para Fomentar el "Scholarship of Teaching and Learning" en la Universidad Tecnológica de Panamá. 2013;24" (PDF). RIDTEC. 9 (2).

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