Which polypeptide of cholera enterotoxin is nontoxic but immunogenic?(a) A1(b) A2(c) B(d) B1I had been asked this question by my college director while I was bunking the class.My question comes from Immunological Preparations in chapter Immunological Preparations of Drug Biotechnology

Which polypeptide of cholera enterotoxin is nontoxic but immunogenic?(

1.	Which polypeptide of cholera enterotoxin is nontoxic but immunogenic?(a) A1(b) A2(c) B(d) B1I had been asked this question by my college director while I was bunking the class.My question comes from Immunological Preparations in chapter Immunological Preparations of Drug Biotechnology
Answer» Correct answer is (c) B The explanation is: Cholera enterotoxin (PRODUCED by Vibrio cholerae) consists of three polypeptides: A1, A2 and B polypeptides. The A polypeptides are TOXIC, while the B polypeptide is nontoxic but immunogenic. THUS, we can use the B polypeptide for the MANUFACTURE of vaccines.

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Which polypeptide of cholera enterotoxin is nontoxic but immunogenic?(a) A1(b) A2(c) B(d) B1I had been asked this question by my college director while I was bunking the class.My question comes from Immunological Preparations in chapter Immunological Preparations of Drug Biotechnology

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