产品内容
本酶催化的反应为Endopeptidase Activity With Very Broad Specificity, Although Some Subsite Preferences Have Been Noted, E.g. Large Hydrophobic Residues In The P1 And P4 Positions, And Pro In The P2 Position [1,2]. Best Known For Its Action On Caseins, Although It Has Been Shown To Hydrolyse Hemoglobin And Oxidized Insulin B Chain,与乳酸乳球菌(Lactococcus lactis)的细胞被膜相关,通过C-端膜锚定序列附着。负责水解牛奶中的酪蛋白并提供细胞生长所必需的肽。在奶酪制作和乳酸酪蛋白生产中很重要,是快速生长到高细胞密度并伴随产生足量乳酸所必需的。来自不同起始菌株的lactocepin之间的特异性差异可能部分导致赋予奶酪不同的风味品质 [4]。属于肽酶家族S8(枯草杆菌蛋白酶家族)。