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All Cells carry, contain and control all sorts of proteins that are comprised completely from Amino acids.
it would depend on amino acid in question. pH above amino acid pI, zwitterion will carry net negative (-) charge. at pH below pI, zwitterion will carry net positive (+) charge. depending on the amino acid, some have more than one acidic or basic functional group. such functional groups can make the amino acid vary in net charge from 2- to 2+ if not more.
The triplet decides where one amino acid is to be put into the Protein. In other works, it ' it codes ' for an amino acid.
Amino Acids
All Cells carry, contain and control all sorts of proteins that are comprised completely from Amino acids.
Amino acids
No, a grease spot test or Sudan IV test can be used to test for lipids. Ninhydrin is used to test for amino acids.
two amino cids
No, most of the R-groups of the 20 standard amino acids have strong bonds that do not allow them to be ionizable. All charged amino acids are ionizable (positive and negative) but only Cys and Tyr have pKRs for the rest.
one amino acid in the sequence would change
Polypeptides are short chains of amino acids, they have no functionality as a protein (long amino acid) would have.
Glutamic acid has a carboxylic acid (COO-) group on the gamma carbon of the amino acid. The carboxylic acid group carries a negative charge and is considered acidic. Lysine has a amino group (NH3+) on the zeta carbon of the amino acid. The positively charged group on the terminal carbon atom makes it an basic amino acid.