![]() ![]() On the other hand, peptide bond is formed due to the condensation reaction between amine (NH2) and carboxyl group (COOH) of two consecutive α amino acid. Thus it behaves as single bond and possesses sp2 hybridization and structurally flexible because of the rotation of C-O-C bond.Įster bonds are the backbones of lipids and peptide bonds are the key components o protein.īasically ester bonds are formed due to the condensation reaction between carboxylic acid group (COOH) and hydroxyl groups (OH) of one acid and alcohol. The unshared pair of electrons from oxygen can not participate in resonance because, after sharing the electron pairs oxygen becomes partially positive and it will not be feasible as oxygen is more electronegative than nitrogen. Whereas ester bond contains a carbonyl center (C=O) and the C-C-O and O-C-O bond angle becomes 120 0. This bond is not flexible and free rotation about this bond is become restricted. In peptide bond, due to delocalization of unshared electron pair, C-N bond possesses partial double bond character. In the formation of peptide bond, amine group (NH 2) from one amino acid reacts with the carboxylic acid group (COOH) of another amino acid and one water molecule is removed.Įster Bond Formation. It is formed by linking two consecutive alpha amino acids. Peptide bond is mainly a covalent chemical bond which is called amide (-CONH 2) type bond present in protein. One of the important ester linkage present in living organism is formed between the oxygen molecule of glycerol and hydroxyl group comes from fatty acid. The ester linkage is formed when a carboxylic acid group (COOH) from a molecule and an alcohol group(OH) from another different molecule participate in a reaction in the presence of concentrated acid ( act as catalyst) and eliminate one water (H 2O) molecule. Definition of Ester Linkage and Peptide Linkage Similarities and differences between these two bonds are pointed out in this article. In ester bond, an oxygen atom is bound with the carbon atom of any alkyl or aryl group.Įster bond is a type of chemical bond, that helps to join alcohol group with carboxylic acid group in the presence of catalyst ,but peptide bond is a type of chemical covalent bond that is formed between the reaction of two successive α amino acid. Function Peptide Bond forms protein / polypeptide Ester linkages are backbone of lipid molecules Formation Peptide bond is formed through condensation reaction between two amino acids Ester bond is also formed between alcohol and acid molecule due to condensation reaction Participating atoms Nitrogen atom from one amino acid forms the peptide linkage with the carbon of carboxylic group from another amino acid. Subject Peptide Bond Ester Bond Connection between Peptide bonds connect two amino acids Ester bond connects an alcohol with an carboxylic acid. In this article ” Peptide Bond vs Ester Bond” the similarities and differences between these two bonds are clarified specifically. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |