Question

Name two amino acids in which sulfur can be seen.

Answer 1

Amino acids:

1. Amino acids are chemical molecules with amino and carboxylate functional groups as well as a side chain (R group) that is unique to each amino acid.
2. Although there are more than 500 naturally occurring amino acids that can be used to make monomer units of peptides, such as proteins, only 22 of them appear in the genetic code.
3. Sulfur is found in the amino acids methionine and cysteine.
4. Methionine (Met) is a sulfur amino acid (AA) that limits growth and is the precursor of cysteine (Cys), the rate-limiting component in glutathione synthesis and the primary non-enzymatic intracellular antioxidant.
5. Cysteine and methionine are nonpolar and hydrophobic in nature.