l-Amino acid α-ligase (Lal), catalyzing the formation of α-dipeptides from unprotected l-amino acids in an ATP-dependent manner, is used in cost-effective fermentative production of dipeptides. We searched for novel Lals by in silico screening using Hidden Markov Model-based profile analysis, and identified five novel Lals that showed low similarity and different substrate specificity from known Lals.
l-
氨基酸 α-连接酶(Lal)以
ATP 依赖性方式催化未受保护的 l-
氨基酸形成 α-二肽,被用于经济高效的二肽发酵生产。我们利用基于隐马尔可夫模型的剖面分析方法,通过
硅筛选寻找新型拉尔,结果发现了五种新型拉尔,它们与已知拉尔的相似性较低,底物特异性也不同。