A protein or a pharmaceutically acceptable salt thereof. The protein has a molecular weight of 10,000-30,000 Dalton, an isoelectric point greater than 9.5, and an N terminus of the sequence H-Lys-X-Phe-Lys-Val-Asp-Val-Leu-Ala-Ala-Leu-X-Phe-Asn-Ala-, wherein X is an amino acid or a tryptic cleavage product which has the sequence -Gly-Ala-Asn-Ala-Val-Asn-. Methods for the isolation and purification of the protein, compositions containing the protein, and methods for the use of the protein and compositions, are also disclosed.
一种蛋白质或其药学上可接受的盐。 该蛋白质的分子量为10,000-30,000道尔顿,等电点大于9.5,N端序列为H-Lys-X-Phe-Lys-Val-Asp-Val-Leu-Ala-Ala-Leu-X-Phe-Asn-Ala-,其中X为
氨基酸或胰
蛋白酶裂解产物,其序列为-Gly-Ala-Asn-Ala-Val-Asn-。 还公开了分离和纯化该蛋白质的方法、含有该蛋白质的组合物以及使用该蛋白质和组合物的方法。