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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Margatoxin ： ウィキペディア英語版 Margatoxin Margatoxin (MgTX) is a peptide that selectively inhibits Kv1.3 voltage-dependent potassium channels. It is found in the venom of ''Centruroides margaritatus'', also known as the Central American Bark Scorpion. Margatoxin was first discovered in 1993. It was purified from scorpion venom and its amino acid sequence was determined. ==Structure== Margatoxin is a peptide of 39 amino acids with a molecular weight of 4185 Dalton. The primary amino acid sequence of Margatoxin is as follows: Thr-Ile-Ile-Asn-Val-Lys-Cys-Thr-Ser-Pro-Lys-Gln-Cys-Leu-Pro-Pro-Cys-Lys-Ala-Gln-Phe-Gly-Gln-Ser-Ala-Gly-Ala-Lys-Cys-Met-Asn-Gly-Lys-Cys-Lys-Cys-Tyr-Pro-His. There are disulfide bridges between Cys 7-Cys29, Cys13-Cys34 and Cys17-Cys36. Margatoxin is classified as a 'Scorpion short toxin' by Pfam, showing sequence homology with other potassium channel blockers, such as charybdotoxin (44%), kaliotoxin (54%), iberiotoxin (41%) and noxiustoxin (79%), which are also derived from scorpion venom. 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「Margatoxin」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.