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The acetolactate synthase (ALS) enzyme (also known as acetohydroxy acid synthase, or AHAS) is a protein found in plants and micro-organisms. ALS catalyzes the first step in the synthesis of the branched-chain amino acids (valine, leucine, and isoleucine). It is a human protein of yet unknown function, sharing some sequence similarity with bacterial ALS, and is encoded by the ''ILVBL'' gene. ==Structure== Acetolactase is a protein consisting of 590 residues. These residues are classified into three separate subunits. The units are d1yhya1, d1yhya2, and d1yhya3. This is classified by the SCOP domain assignments. The structure of acetolactate synthase that was used for the picture on this page was determined using X-ray diffraction at 2.70 angstroms. X-ray diffraction uses X-rays at specified wavelengths to produce patterns, as the X–ray is scattered in certain ways that give an idea to the structure of the molecule being analyzed. There are five specific ligands that interact with this protein. The five are listed below. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「acetolactate synthase」の詳細全文を読む スポンサード リンク
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