2024年11月17日 · Throughout the protein-synthesis process, the carboxyl group of the amino acid reacts with the amino group of an incoming amino acid, releasing a molecule of water. This process occurs at the end of the growing polypeptide chain, thus resulting in a bond between amino acids, known as a peptide (or polypeptide) chain.

2023年7月29日 · The backbone of any protein molecule is a polypeptide chain obtained by the condensation of a large number of amino acids with the elimination of water. You will recall that the amino acids are bifunctional organic nitrogen compounds containing an acid group, —COOH, and an amine group, —NH 2 .

What is a Polypeptide Chain? A polypeptide chain is a polymer consisting of amino acids bonded in a specific linear sequence through peptide bonds. Each amino acid has an amine group (-NH₂) and a carboxyl group (-COOH) that react to form these bonds in a condensation reaction, releasing water as a byproduct.

2021年1月26日 · The polypeptide definition describes a chain of more than twenty and less than fifty amino acids bound together via covalent peptide bonds. Singular amino acids are the building blocks of life and can be linked to form oligopeptides, polypeptides, and proteins inside the cell. This occurs during a process called protein synthesis.

The carboxyl group (COOH) of one amino acid links with the amino group (NH 2) of another to produce the sequence CONH and release water in a peptide bond (H 2 O). Polypeptide Structure. One or more polypeptide chains make up proteins. Each polypeptide chain is made up of smaller subunits or amino acids bonded together.

2018年9月24日 · polypeptide chain. By convention, the primary sequence is written in order from the amino acid at the N-terminus (usually on the left) to the amino acid at the C-terminus. The second level of protein structure, secondary structure, is the local conformation adopted by stretches of contiguous amino acids.

This review shows that water in biological systems is not just a passive liquid solvent but also a partner in the formation of the structure of proteins, nucleic acids and their complexes, thereby contributing to the stability and flexibility required for their proper function.

2014年12月21日 · Water becomes structured around the emerging polypeptide chain by interaction with the chain itself and is, thereby, forced to reflect the helical structure of the polypeptide inside it during the very early period immediately before and during emergence from the ribosomal exit tunnel.

2024年5月12日 · The first of these is the primary structure, which is the sequence of amino acids in a protein’s polypeptide chain or chains, beginning with the free amino group and maintained by the peptide bonds connecting each amino acid to the next.

2023年11月21日 · During this process, a water molecule is removed which creates a peptide bond between two amino acids. Each polypeptide chain is a series of amino acids joined together in a specific sequence...