1. Metabolic Enzyme/Protease
  2. Cathepsin
  3. Papain (1.5-10 units/mg)

Papain (1.5-10 units/mg) is a cysteine protease of the peptidase C1 family. Papain (1.5-10 units/mg) enhances red cell agglutination by anti-D and anti-A, and increases red cell sensitivity to K cell-mediated lysis in ADCC assays. Papain (1.5-10 units/mg) can induce pulmonary emphysema. Papain (1.5-10 units/mg) can be used for the researches of Rh haemolytic disease of the newborn and pulmonary emphysema.

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Papain (1.5-10 units/mg)

Papain (1.5-10 units/mg) Chemical Structure

CAS No. : 9001-73-4

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Description

Papain (1.5-10 units/mg) is a cysteine protease of the peptidase C1 family. Papain (1.5-10 units/mg) enhances red cell agglutination by anti-D and anti-A, and increases red cell sensitivity to K cell-mediated lysis in ADCC assays. Papain (1.5-10 units/mg) can induce pulmonary emphysema. Papain (1.5-10 units/mg) can be used for the researches of Rh haemolytic disease of the newborn and pulmonary emphysema[1][2].

In Vitro

Papain (1.5-10 units/mg) (5 U/mL; 15 min) pretreatment of O Rh-positive red cells enhances anti-D-mediated agglutination, while it slightly reduces anti-A-mediated agglutination of A Rh-negative red cells[2].
Papain (1.5-10 units/mg) (5 U/mL; 15 min) pretreatment of O Rh-positive red cells increases their sensitivity to lymphocyte-mediated lysis in anti-D-mediated ADCC assays at low antibody concentrations and a 15:1 effector-to-target ratio[2].
Papain (1.5-10 units/mg) (5 U/mL; 15 min) pretreatment of O Rh-positive target red cells enables significant PBMC-mediated lysis in anti-D-mediated ADCC assays at a 1:3:3 effector-to-target-to-competitor ratio[2].
Papain (1.5-10 units/mg) (5 U/mL; 15 min) pretreatment of A Rh-negative target red cells enables significant PBMC-mediated lysis in anti-A-mediated ADCC assays at a 1:3:3 effector-to-target-to-competitor ratio[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Papain (1.5-10 units/mg) (10 IU; intratracheal instillatio; at day 0 and 7) induces pulmonary emphysema in female BALB/c mice[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: BALB/c (female, 20-25 g)[1]
Dosage: 10 IU
Administration: Intratracheal instillatio; days 0 and 7
Result: Increased viscoelastic/inhomogeneous pressure, static elastance, and viscoelastic component of elastance.
Increased polymorphonuclear (PMN) cell count, mean alveolar diameter, functional residual capacity (FRC) and decreased elastic fiber area.
Increased KC levels, MIP-2 levels, and IFN-γ levels.
Left TNF-α, IL-1β, and IL-6 levels unchanged relative to saline controls.
CAS No.
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Solid

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[Papain (1.5-10 units/mg)]

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Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

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    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Papain (1.5-10 units/mg)
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