翻訳と辞書 Words near each other ・ Leucocoprinus cepistipes ・ Leucocoprinus cretaceus ・ Leucocoprinus fragilissimus ・ Leucocortinarius ・ Leucocoryne ・ Leucocosmia ・ Leucocrinum ・ Leucocroton ・ Leucocroton havanensis ・ Leucocryptos ・ Leucoctenorrhoe ・ Leucine 2,3-aminomutase ・ Leucine carboxyl methyltransferase 1 ・ Leucine dehydrogenase ・ Leucine N-acetyltransferase ・ Leucine operon leader ・ Leucine rich repeat containing 15 ・ Leucine transaminase ・ Leucine zipper ・ Leucine-responsive regulatory protein ・ Leucine-rich repeat ・ Leucines ・ Leucine—tRNA ligase ・ Leucinodes ・ Leucinodes africensis ・ Leucinodes bilinealis ・ Leucinodes cordalis ・ Leucinodes diaphana ・ Leucinodes erosialis ・ Leucinodes ethiopica Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Leucine operon leader ： ウィキペディア英語版 Leucine operon leader The Leucine operon leader is an RNA element found upstream of the first gene in the Leucine biosynthetic operon. The leader sequence can assume two different secondary structures known as the terminator and the anti-terminator structure. The leader also codes for very short peptide sequence that is rich in leucine amino acid. The terminator structure is recognised as a termination signal for RNA polymerase and the operon is not transcribed. This structure forms when the cell has an excess of leucine and ribosome movement over the leader transcript is not impeded.〔 When there is a deficiency of the charged leucyl tRNA the ribosome translating the leader peptide stalls and the antiterminator structure can form. This allows RNA polymerase to transcribe the operon.〔 At least 6 amino acid operons are known to be regulated by attenuation.〔 ==References== 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「Leucine operon leader」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.