What is the overall charge of Arginine at pH 14? a) +2 b) +1 c) 0 d) -1 HO H3N + + NH2 CH2CH2CH2NHCNH2
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What is the overall charge of Arginine at pH 14?
Explain why that number would be the net charge and how to determine what net charge is on a pH/amino acid.
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- Given this short polypeptide: Met-Ala-Gly-Ser A) Which is the amino terminal amino acid? B) How many amino acids are in this polypeptide? C) How many peptide bonds are in this polypeptide? D) Which amino acid has the smallest side chain? E) Which amino acid contains sulfur?A) illustrate in molecular detail how hemoglobin's reduced oxygen affinity is caused by protonation of the histidine side chain. b) what is the pKa of the histidine side-chain ionizable group expected to have?|A) describe in molecular detail how protonation of the histidine side-chain results in hemoglobin's lower affinity for oxygen. b) what value do you expect for the pKa of the histidine side-chain ionizable group?
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