76216
Papain from Carica papaya
solution, light brown, ≥10 U/mg protein (~25 mg/ml)
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About This Item
Recommended Products
biological source
papaya
Quality Level
form
solution
specific activity
≥10 U/mg protein (~25 mg/ml)
mol wt
Mr ~23000
technique(s)
cell culture | mammalian: suitable
single cell analysis: suitable
color
light brown
storage temp.
2-8°C
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General description
Papain is a proteolytic enzyme and is naturally occurring in papaya (Carica papaya L.). It is obtained from the latex of cut unripe papaya. Papain belongs to the cysteine proteinase family. It is a globular, single-chain protein composed of four disulfide bridges and catalytically essential residues. Papain consists of an all α-domain and anti-parallel β-sheet domain.
Application
Papain from Carica papaya has been used:
- in the enzymatic dissociation of rat cortices to extract astrocytes for cell culture
- to study its effects on Alpaca seminal plasma viscosity and sperm function
- to study its effects on the yield and cryo-survival of Rhinoceros spermatozoa
Papain is used as a meat tenderizer. It′s also used to break up tissue in the preparation of primary cell cultures.
Biochem/physiol Actions
Papain is a cysteine protease that cleaves peptide bonds and is known to cleave the Fc portion of antibodies.
Papain plays an important role in many biological processes in many living organisms. It exhibits proteolytic activity against proteins, amino-acid esters and amide links, and short-chain peptides. Papain preferentially cleaves the peptide bonds of basic amino acids such as arginine, phenylalanine, and lysine. It has a wide range of applications in drug discovery, pharmaceutical, food, baking, and dairy industries.
Unit Definition
1 U corresponds to the amount of enzyme which hydrolyzes 1 μmol N-benzoyl-L-arginine ethyl ester (BAEE, Cat. No. 12880) per minute at pH 6.2 and 25°C
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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José M Laparra et al.
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This study aims to understand the enhancing effect of glycosaminoglycans (GAGs), such as chondroitin/dermatan structures, on Fe uptake to Caco-2 cells. High-sulfated GAGs were selectively purified from cooked haddock. An in vitro digestion/Caco-2 cell culture model was used to evaluate
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Journal of agricultural and food chemistry, 56(21), 10346-10351 (2008-10-15)
This study continues previous research to confirm that glycosaminoglycans (GAGs) exert a positive effect on promoting iron uptake by Caco-2 cells. Cooked haddock was digested with papain, and GAGs were further purified on the basis of their sulfur content. Reverse
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