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| Description: Aspartic acid (pKa = 3.9) and glutamic acid (pKa = 4.2) typically carry negative charges at pH 7. These amino acid residues are often referred to as aspartate and glutamate. (i.e., the conjugate bases rather than the acids). Unlike their acidic analogs, asparagine and glutamine have uncharged polar side chains. Like the basic and acidic amino acids, Asn and Gln are hydrophilic and tend to be on the surface of a protein molecule, in contact with the surrounding water. Picture Stats: Views: 212 Filesize: 51.27kB Height: 333 Width: 953 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=33910 |