软骨素酶 ABC 来源于普通变形杆菌

C755225-5U

5U

lyophilized powder, 0.3-3 units/mg solid

Sigma的软骨素酶ABC被用来消化O连接的硫酸软骨素类糖胺聚糖(CSGAG)。该酶还被用来消化蛋白质多糖中的糖胺聚糖链，在哺乳动物系统中构建和表达重组的多功能蛋白聚糖基因。此外，它还被用来消化蛋白聚糖复合物中的硫酸软骨素。该酶还被用于从蛋白聚糖中去除糖链，从而消除蛋白聚糖的轴突生长抑制作用。 Chondroitinase ABC from Sigma has been used to digest O-linked chondroitin sulfate-like glycosaminoglycan (CSGAG). The enzyme has also been used to digest glycosaminoglycan chains in proteoglycans during the construction and expression of a recombinant versican gene in mammalian systems. Furthermore, it has been used to digest chondroitin sulfate in the proteoglycan complexes. The enzyme has also been used in the removal of glycan chains from aggrecan, which eliminates the axon growth-inhibitory effect of aggrecan.

软骨苷酶ABC催化含有(1-4)-β-D-己糖氨基和(1-3)-β-D-葡萄糖醛酸基(或(1-3)-α-L-iduronosyl)的多糖与含有4-脱氧-β-D-葡萄糖-4-enuronosyl基团的双糖的清除降解。它作用于硫酸软骨素4、硫酸软骨素6、硫酸皮肤素。但是，它对透明质酸盐作用缓慢。其分子量约为120 kDa，含分子量分别为86 kDa和32 kDa的两个不同亚单位。硫酸软骨素pH值为8.0，透明质酸pH值为6.8。最佳温度为37℃。1mM Zn 2+ 可作为其抑制剂，0.05 M乙酸为该酶的激活剂。