P5306
Papaína from papaya latex
lyophilized powder, aseptically filled
Sinónimos:
Papinasa
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Número CAS:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-627-2
MDL number:
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Permítanos ayudarleNombre del producto
Papaína from papaya latex, lyophilized powder, aseptically filled
biological source
papaya (latex)
sterility
aseptically filled
form
lyophilized powder
specific activity
≥8.0 units/mg protein
mol wt
23.4 kDa
solubility
H2O: soluble 1.2 mg/mL
storage temp.
−20°C
Quality Level
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Categorías relacionadas
Application
Utilizada para producir fragmentos Fab de los anticuerpos. Se utiliza también para la disociación celular, ya que se ha demostrado que es más eficaz y menos lesiva con ciertos tejidos.
Papain is used in dissecting solutions. It is used to produce Fab fragments of antibodies . It is used for cell dissociation since it has been shown to be more effective and less damaging with certain tissues. Papain has been used to isolate morphologically intact cortical neurons from postnatal rats. Limited papain digestion is used for structural studies of enzymes and other proteins. In addition, papain is used in red cell serology to modify the red cell surface to enhance or destroy the reactivity of many red cell antigens. Papain is useful for platelet serology studies. Papain has also been used in the enzymatic synthesis of amino acids, peptides, and other molecules. Product P5306 is provided as a lyophilized powder that is aseptically filled. It has been used to digest mouse retinas to study the RAGE axis in nonproliferative diabetic retinopathy (NPDR).
The product from Sigma has been used in the digestion of extracellular matrix (ECM). It has also been used with other proteolytic enzymes for in situ protein degradation to produce crystals suitable for structure determination.
Biochem/physiol Actions
Una proteasa de cisteína que rompe los enlaces peptídicos de los aminoácidos básicos, la leucina o la glicina
pH óptimo 6,0-7,0
También hidroliza ésteres y amidas.
pH óptimo 6,0-7,0
También hidroliza ésteres y amidas.
Papain papaya latex has antifungal activity against C. albicans. Papain consists of a single polypeptide chain with three disulfide bridges and a sulfhydryl group necessary for activity of the enzyme.
Other Notes
Véase más información sobre la papaína en www.sigma-aldrich.com/enzymeexplorer.
One unit will hydrolyze 1.0 μmole of BAEE per minute at pH 6.2 at 25 deg C.
General description
Papain is a thermostable enzyme and becomes inactive at 55°C. It has two domains and the catalytic region is present at the domain interface. The cysteine 25 in the active site performs the proteolysis by nucleophilic attack on the carbonyl carbon of a peptides. Papain has wide industrial applications in food and pharmaceutical industry.
Preparation Note
Prepared from P 4762
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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Improving thermostability of papain through structure-based protein engineering
Choudhury D, et al.
Protein engineering, design & selection : PEDS, 23(6), 457-467 (2010)
Clara Malo et al.
Andrologia, 53(11), e14224-e14224 (2021-09-09)
This study evaluated the effects of freezing extenders, cryoprotectants and their concentrations, presence of Orvus Es Paste and freezing rates for cryopreserving dromedary camel sperm. Semen (five males; 2 ejaculates/male) was frozen in one of the following extenders (Green Buffer®
Amy Wernimont et al.
PloS one, 4(4), e5094-e5094 (2009-04-09)
For every 100 purified proteins that enter crystallization trials, an average of 30 form crystals, and among these only 13-15 crystallize in a form that enables structure determination. In 2007, Dong et al reported that the addition of trace amounts
Papain, a plant enzyme of biological importance: a review
Ezekiel A and Florence M
American Journal of Biochemistry and Biotechnology, 8(2), 99-104 (2012)
Gaetano R Barile et al.
Investigative ophthalmology & visual science, 46(8), 2916-2924 (2005-07-27)
The receptor for advanced glycation end products (AGEs) has been implicated in the pathogenesis of diabetic complications. This study was conducted to characterize the role of the RAGE axis in a murine model of nonproliferative diabetic retinopathy (NPDR). The retinas
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