Amino Acids: Structure and Properties

amine and carboxylic acid

pH 7-9

The pKa of the carboxylic acid group is lower than the pKa of the protonated amine group

<p>To assign pKa values to each amino acid</p> Signup and view all the answers

<p>A side chain that varies between different amino acids</p> Signup and view all the answers

<p>carboxylic acid (-COOH) and amine (-NH2)</p> Signup and view all the answers

<p>D-sugars rotate light clockwise (dextrorotatory), while L-sugars rotate light counterclockwise (levorotatory)</p> Signup and view all the answers

<p>amide bonds</p> Signup and view all the answers

<p>based on its optical rotation, using the D/L system</p> Signup and view all the answers

<p>The N-terminus is the amino end, where the amine group is free, while the C-terminus is the carboxyl end, where the carboxyl group is free</p> Signup and view all the answers

<p>because the amino acids must be joined through peptide bonds, which require specific chemical reactions and conditions</p> Signup and view all the answers

<p>To protect the C-terminus and N-terminus of amino acids from reacting with other molecules during the synthesis process.</p> Signup and view all the answers

<p>Boc</p> Signup and view all the answers

<p>DCC (dicyclohexylcarbodiimide)</p> Signup and view all the answers

<p>It allows for easier purification and automation of the synthesis process.</p> Signup and view all the answers

<p>To facilitate the deprotection of protecting groups and promote the formation of peptide bonds.</p> Signup and view all the answers

<p>It is used to remove protecting groups, such as Boc.</p> Signup and view all the answers