Non-protein amino acids, Biology

NON-PROTEIN AMINO ACIDS

Non-protein amino acids are the ones which are not incorporated in proteins but occur freely or in combined state in non-protein substances.

Their number is more than 180.

(i)       Ornithine and Citrulline threonine.

(ii)      Homoserine is intermediate in synthesis of cysteine, methionine and threonine.

(iii)         Diaminopimelic acid is intermediate in synthesis of lysines.

(iv)      D-Alanine and D-Glutamic acid are component of peptidolycan of bacterial wall.

(v)      Gamma Aminobutyric acid or GABA is a synaptic neurotransmitter that causes inhibition by opening chloride channels.

(vi)      A number of antibiotics contain amino acid analogues that prevent protein synthesis, e.g., D-Phenylalanine  in Gramicidin - S

(vii)     Actinomycin - D, an inhibitor of RNA synthesis, contains D-Valine.

Posted Date: 10/9/2012 5:32:58 AM | Location : United States







Related Discussions:- Non-protein amino acids, Assignment Help, Ask Question on Non-protein amino acids, Get Answer, Expert's Help, Non-protein amino acids Discussions

Write discussion on Non-protein amino acids
Your posts are moderated
Related Questions
Kinds of Matter On basis of its chemical organization, matter id of three categories elements, compounds and mixture An element is composed of obviously, earth similar atoms

Antibodies of dissimilar specificities, which react to the same antigen, are known as polyclonal antibodies.

Birth control pills maintain a high blood level of estrogen and progesterone. What is happening in the ovary when the blood level of estrogen is high? How is the uterus responding?

Define Changes in Tract Minerals - Nutrition during Stress? Changes in the balance of magnesium, phosphate, zinc and potassium follows alterations in nitrogen balance. Iron and

If a fragment of nucleic acid has a nucleotide sequence TAC can one assert that it is a codon or an anticodon? A nucleic acid having a TAC sequence surely is not tRNA, it is DN

Evaluate how best to achieve the goal of fostering the integration of biology, statistics, and mathematics. What impediments stand in the way of progress? What is the best way to

Sonology : This is the study of hearing. Sonology is a type of science of neologism which is used to describe the study of sound in a variety of disciplines. In medicine, this term

What is more and less biologically complex out of whey protien and ice cream and why?

How different are pteridophytes from bryophytes regarding substance transport? Pteridophytes are tracheophyte (vascular) plants, i.e., they have tissues specialized in conduct

How does brain recognize difference between high and low c and soft and loud sounds?