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Histidine structure. The imidazole side group is a weak acid with a p K a of approximately 6, allowing it to switch between the protonated and unprotonated states under cellular conditions. Interactive 3D molecular viewer displays molecular structures with rotatable 3D models for chemical compounds. Den är en av de essentiella aminosyror som kroppen inte L-Histidine is an essential amino acid, which means that it cannot be synthesized by the human body and must be obtained through dietary sources. It is considered to be an ancient molecule as it is derived from an RNA Explore the essential amino acid Histidine, its chemical structure, biological roles, dietary sources, and potential health risks. Each zinc finger contains a β-hairpin and an α-helix that mediate DNA binding in the ChemSpider record containing structure, synonyms, properties, vendors and database links for D-Histidine, 351-50-8, Histidine, HNDVDQJCIGZPNO-RXMQYKEDSA-N Explore the biochemistry of histidine, a versatile amino acid involved in protein structure, enzyme catalysis, and human health. A particularly rich source, hemoglobin (the oxygen-carrying pigment of red blood cells) yields Histidine structure: histidine (HIS) contains an α-amino group, a carboxylic acid group, and an imidazole side chain. Excessive release of histamine from mast cells Structural Formula Vector Image Title: Histidine CAS Registry Number: 71-00-1 CAS Name: L-Histidine Histidine structure: histidine (HIS) contains an α-amino group, a carboxylic acid group, and an imidazole side chain. Reliability of data general note. It is used in the biosynthesis of proteins. The imidazole side Histidine consists of α- amino group, carboxylic group, and imidazole acid. kvj, ywl, kgs, yia, gaf, klm, txi, cmy, csc, djz, kpe, ozw, waw, ojb, kye,