The invention relates to the discovery of a novel Chondroitinase Glycoproteins (CHASEGP's), methods of manufacture, and potential uses in conditions where removal of chondroitin sulfates may be of therapeutic benefit. Chondroitinase Glycoproteins require both a substantial portion of the catalytic domain of the CHASEGP polypeptide and asparagine-linked glycosylation for optimal chondroitinase activity. The invention also includes carboxy-terminal deletion variants of CHASEGP that result in secreted variants of the protein to facilitate manufacture of a recombinant CHASEGP. Further described are suitable formulations of a substantially purified recombinant CHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity.; CHASEGP is useful for the degradation of glycosaminoglycans and chondroitin sulfate proteoglycans under clinical conditions where their removal is of therapeutic value.
本发明涉及一种新型软骨素酶糖蛋白(CHA
SEGP's)的发现、制造方法以及在去除
软骨素硫酸盐可能有治疗效果的情况下的潜在用途。软骨素酶糖蛋白需要 CHA
SEGP
多肽催化结构域的大部分和天冬酰胺连接的糖基化,以获得最佳的软骨素酶活性。本发明还包括 CHA
SEGP 的羧基末端缺失变体,这些变体可形成该蛋白的分泌型变体,以方便制造
重组 CHA
SEGP。本发明还描述了从真核细胞中提取的基本纯化的
重组 CHA
SEGP 糖蛋白的合适制剂,该制剂可产生其最佳活性所需的适当糖基化。