76218
Papain from Carica papaya
powder, almost white, ~12 U/mg
form
powder
specific activity
~12 U/mg
mol wt
Mr ~23000
color
almost white
storage temp.
−20°C
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Application
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.
Other Notes
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
Regulatory Information
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Q-G Li et al.
Heredity, 110(3), 259-266 (2012-12-06)
P34, a storage protein and major soybean allergen, has undergone a functional transition from a cysteine peptidase to a syringolide receptor. An exploration of the evolutionary mechanism of this functional transition is made. To identify homologous genes of P34, syntenic
Fernanda Brandão Mollica et al.
Journal of applied oral science : revista FOB, 20(4), 449-454 (2012-10-04)
There are several methods for identifying carious dentinal tissue aiming to avoid removal of healthy dentinal tissue. The purpose of this study was to test different methods for the detection of carious dentinal tissue regarding the amount of carious tissue
Yasuko Ito-Inaba et al.
Bioscience, biotechnology, and biochemistry, 76(10), 1990-1992 (2012-10-11)
Skunk cabbage (Symplocarpus renifolius) spadices contain abundant transcripts for cysteine protease (CP). From thermogenic spadices, we isolated SrCPA, a highly expressed CP gene that encoded a papain-type CP. SrCPA is structurally similar to other plant CPs, including the senescence-associated CPs
Yonghua Bi et al.
Journal of vascular and interventional radiology : JVIR, 23(11), 1529-1536 (2012-10-30)
The objective of this study was to determine the possibility of creating a novel animal model of abdominal aortic aneurysm (AAA) in rabbits by the periarterial application of papain. Twelve New Zealand white rabbits were randomized into two groups: (1)
Sumana Roy et al.
Acta crystallographica. Section D, Biological crystallography, 68(Pt 12), 1591-1603 (2012-11-16)
Papain is the archetype of a broad class of cysteine proteases (clan C1A) that contain a pro-peptide in the zymogen form which is required for correct folding and spatio-temporal regulation of proteolytic activity in the initial stages after expression. This
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