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Chymopapain (EC 3.4.22.6, chymopapain A, chymopapain B, chymopapain S, brand name Chymodiactin) is a proteolytic enzyme isolated from the latex of papaya (Carica papaya).It is a cysteine protease which belongs to the papain-like protease (PLCP) group. [1]
The patient must be closely monitored for anaphylactic shock, and anyone allergic to sheep protein, papain, bromelain, or papaya extracts (papain is used to cleave the antibody into Fab and Fc fragments) should not use ovine digoxin immune fab. Because it is relatively new, no drug interaction studies have been performed yet. [citation needed]
Members of the papain-like protease family play a number of important roles in plant development, including seed germination, leaf senescence, and responding to abiotic stress. Papain-like proteases are involved in regulation of programmed cell death in plants, for example in tapetum during development of pollen.
Papain is the main ingredient of Papacarie, a gel used for chemomechanical dental caries removal. It does not require drilling and does not interfere in the bond strength of restorative materials to dentin. [13] Papain has been known to interfere with urine drug tests for cannabinoids. [14] It is found in some drug detox products.
An antibody digested by papain yields three fragments, two Fab fragments and one Fc fragment An antibody digested by pepsin yields two fragments: a F(ab') 2 fragment and a pFc' fragment The fragment crystallizable region ( Fc region ) is the tail region of an antibody that interacts with cell surface receptors called Fc receptors and some ...
An earlier study [13] had highlighted the similarity in specificity of caricain, chymopapain and papain. All seven bonds of the oxidized B chain of insulin that were hydrolyzed by caricain were also cleaved by papain, and six were hydrolyzed by chymopapain. Caricain can be assayed with Bz-ArgkNHPhNO2, kcat/Km being 187 M21 s21 at pH 6.8 and 40˚C.
The 71st Edition, published in 2017, was the final hardcover edition, weighed in at 4.6 pounds (2.1 kg) and contained information on over 1,000 drugs. [1] Since then, the PDR has been available online for free. The Physicians' Desk Reference was first published in 1947 by Medical Economics Inc., a magazine publisher founded by Lansing Chapman. [2]
The U.S. Food and Drug Administration [1] [2] and International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use have provided specific regulations and guidelines surrounding this component of the drug and device development process. The effective, efficient and regulatory-compliant ...