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Chemistry & Structure

Amino acid

An organic molecule containing both an amino group (-NH2) and a carboxyl group (-COOH). The 20 standard amino acids are the building blocks of peptides and proteins, linked together by peptide bonds.

Frequently Asked Questions

What is Amino acid?
An organic molecule containing both an amino group (-NH2) and a carboxyl group (-COOH). The 20 standard amino acids are the building blocks of peptides and proteins, linked together by peptide bonds.
Why is Amino acid important in peptide research?
Amino acid is a foundational concept in peptide science. Understanding peptide chemistry helps researchers and practitioners evaluate peptide quality, predict stability, and make informed decisions about storage, reconstitution, and formulation.

Related Terms

Peptide bond

A covalent chemical bond formed between the carboxyl group of one amino acid and the amino group of another through a condensation reaction. Peptide bonds link amino acids into peptide chains.

Amino acid sequence

The specific linear order of amino acids in a peptide chain, written from N-terminus to C-terminus. The sequence determines the peptide’s three-dimensional structure and biological activity.

Chirality

The property of a molecule that is non-superimposable on its mirror image. Natural amino acids are L-form (left-handed); D-form amino acids can be incorporated into peptides to resist enzymatic degradation.

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