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Found Amino acids 34 times.

Displaying results 1 to 10.

1. Amino acid
Any of a class of 20 molecules that are combined to form protein s in living things. The sequence of amino acids in a protein and hence protein function are determined by the genetic code .

2. Amino acid sequence
Also known as the primary structure of a protein/polypeptide; the sequence of amino acids in a protein/polypeptide controlled by the sequence of DNA bases.

3. Amino acids
The subunits ( monomers ) from which proteins ( polymers ) are assembled. Each amino acid consists of an amino functional group, and a carboxyl acid group, and differs from other amino acids by the composition of an R group.

4. Anticodon
A sequence of three nucleotides on the transfer RNA molecule that recognizes and pairs with a specific codon on a messenger RNA molecule; helps control the sequence of amino acids in a growing polypeptide chain.

5. Calcitonin
Calcitonin is a hormone secreted by a type of cells in the thyroid gland. (Calcitonin is different from the thyroid hormone thyroxine ). Calcitonin is a small peptide of 32 amino acids. It functions to lower the circulating calcium and phosphate levels. Its secretion is controlled via feedback inhibition by calcium levels.

6. Carboxypeptidases
Enzyme s which remove amino acid s from polypeptide s (a chain of amino acids) one by one, starting from the carboxyl terminal (3' end).

7. Casamino acids
The group of amino acid s which results when casein , a protein found in milk, is broken down by enzyme s.

8. Degenerate code
The fact that in most cases in the genetic code used by all life on Earth, one particular amino acid is specified by more than one three-base combination of the four nitrogenous base s (called a codon ). There are enough different codons to specify 64 different amino acids, but there are in actuality only 20 amino acids (and three stop codon s) used in the making of protein s.

9. Edman degradation
A lab technique used to find out the order of amino acid s in a polypeptide (chain of amino acids). It involves using the Edman reagent, phenyl isothiocyanate (PITC), to react one by one with each amino acid, in order. The technique is used in machines which automatically sequence (determine the order of subunits) polypeptides.

10. Elongation
During protein synthesis, the growth of the polypeptide chain through the addition of amino acids ; the second step in translation .

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