Amino acids forming pyruvate are convertible to acetyl-CoA. In addition to this, 5 amino acids form acetyl-CoA directly, without first forming pyruvate. Phenylalanine: Phenylalanine (an essential amino acid) is converted to tyrosine by phenylalanine hydroxylase; tetrahydropteridine, NADPH and O, are required. The reaction is not reversible. The catabolism of phenylalanine and tyrosine may be discussed under the following heads: 1. [...]
In this article we will discuss about:- 1. RNA Synthesis 2. RNA Polymerase 3. Sigma (σ) Factors 4. Ribozymes 5. Catabolism 6. Ribosomal RNAs are Processed from a Large Precursor 7. Messenger RNA (mRNA) is Modified at the 5' and 3' Ends 8. Transfer RNA (tRNA) is Extensively Processed and Modified. Contents: RNA Synthesis RNA Polymerase Sigma (σ) Factors of [...]
In this article we will discuss about the Metabolism of DNA:- 1. DNA Synthesis 2. Replication of DNA 3. Degradation 4. The DNA Polymerase Complex 5. Enzymes Repair Damaged DNA. Contents: DNA Synthesis Replication of DNA Degradation of DNA The DNA Polymerase Complex Enzymes Repair Damaged DNA 1. DNA Synthesis: a. The initiation of DNA synthesis requires priming by a [...]