PEPTIDE LINK Meaning and
Definition
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A peptide link, also known as a peptide bond or amide bond, is a chemical bond that connects two amino acids in a protein chain. It is formed through a condensation reaction, in which the carboxyl group (-COOH) of one amino acid reacts with the amino group (-NH2) of another amino acid, resulting in the release of a water molecule. This bond formation process is known as dehydration synthesis or a peptide bond formation reaction.
Structurally, a peptide link consists of a carbonyl (C=O) group attached to the carbon atom of the carboxyl group and a nitrogen (N) atom attached to the carbon atom of the amino group. This arrangement gives rise to a rigid, planar characteristic of the peptide bond, attributed to the presence of partial double bond character. The presence of this double bond character makes the peptide bond relatively stable and resistant to rotation.
Peptide links are responsible for connecting amino acids in a linear sequence during the synthesis of proteins. Amino acids can be joined together through a series of peptide links, forming a polypeptide chain. Overall, the peptide bond plays a crucial role in determining the structure, function, and properties of proteins due to its specific orientation and rigidity.
Common Misspellings for PEPTIDE LINK
- oeptide link
- leptide link
- 0eptide link
- pwptide link
- psptide link
- pdptide link
- prptide link
- p4ptide link
- p3ptide link
- peotide link
- peltide link
- pe0tide link
- pepride link
- pepfide link
- pepgide link
- pepyide link
- pep6ide link
- pep5ide link
- peptude link
- peptjde link
Etymology of PEPTIDE LINK
The term "peptide link" is derived from the combination of two words: "peptide" and "link".
1. Peptide: The word "peptide" originated from the Greek word "peptos", meaning "digestible" or "to digest". This term was coined in the early 20th century to describe the class of organic compounds composed of amino acids. Peptides are formed by the linkage of amino acids through peptide bonds.
2. Link: The word "link" has its roots in Old English and Old Norse languages, where "hlycnian" and "hlíka" respectively meant "to join" or "to bind together". It is commonly used to describe a connection or a bond between two entities.
Therefore, when these two words are combined, "peptide link" refers to the specific type of bond that joins amino acids in a peptide chain, known as a peptide bond.
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