[10] EASY way to find charge of a polypeptide | Calculating the charge of polypeptide for a given pH

A simple and easy explanation on how to find and calculate the charge of a polypeptide chain for a given pH value. Examples taken here are with the polypeptide chain A-V-I-L-M-W (AVILM/ Ala-Val-Ile-Leu-Met/ Alanine-Valine-Isoleucine-Leucine-Methionine) at pH 5.9 and the polypeptide chain G-W-Y-Q-R (GWYQR/ Gly-Trp-Tyr-Gln-Arg/ Glycine-Tryptophan-Tyrosine-Glutamine-Arginine) at pH 10.5.

These sort of questions are commonly asked in PhD interviews and competitive exams such as GATE, IIT JAM, CSIR-NET, MCAT, etc.

Timestamps:
0:00 Introduction
0:14 Principle
1:00 AVILM
4:00 GWYQR

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