The simple average molecular weight of the 20 common amino acids is 138 , but most biochemists use 110 when estimating the number of amino acids in a protein of known molecular weight. Why do you suppose this is? (Hint: There are two contributing factors to the answer. One of them will be apparent from a brief consideration of the amino acid compositions of common proteins. See, for example, Figure -Bellow)
Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
The simple average molecular weight of the 20 common amino acids is 138 , but most biochemists use 110 when estimating the number of amino acids in a protein of known molecular weight. Why do you suppose this is?
(Hint: There are two contributing factors to the answer. One of them will be apparent from a brief consideration of the amino acid compositions of common proteins. See, for example, Figure -Bellow)
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