Methods: In the present experiment, acid dehydroxy amino acid analysis and isoelectric focusing in polyacylamide gels were used and the amino acid composition and isoelectric point of porcine platelet-derived growth factor were studied.
Methods: In the present experiment, acid dehydroxy amino acid analysis and isoelectric focusing in polyacylamide gels were used and the amino acid composition and isoelectric point of porcine platelet-derived growth factor were studied.
方法：用酸水解及聚丙烯酰胺凝胶等电聚焦的方法测定猪血小板衍生生长因子的氨基酸含量、组成成分和等电点。