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.
Does right-handed alpha-helix has the least restricted ϕ and ψ angles in polypeptides, compared with left-handed alpha-helix and beta sheet?
When amino acids are joined with one another, the C-N bond in the amide linkage causes rigidity which results in the the amino acid R-groups to favour the trans-conformation. This rigidity controls the folding potential and patterns of the final protein formed. In order to find out the possible rotation that can arise around the α-carbon, the torsion angles Phi (Φ) and Psi (ψ) are commonly measured.
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