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从尖吻蝮蛇蛇毒中,通过嗜硫色谱、Sephadex G-75、Blue胶和PORTS HQ20离子交换色谱,分离纯化得到纯组分AA-PLA2-I,并证明其为新型酸性磷酸酯酶A2.经鉴定,该酶为分子量14.4 kD的单体蛋白,等电点5.66,不合中性糖基,N端序列为SLIQFETLIMKVVKK,其磷酸酯酶A2活性的最适温度和pH条件分别为50℃和pH 10.此外,该酶蛋白酶活性较弱,无出血毒性,但具有抗凝血活性,且其抗凝血活性耐热至70℃.
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中国生物化学与分子生物学报
ISSN: 1007-7626
CN: 11-3870/Q
Year: 2009
Issue: 10
Volume: 25
Page: 932-937
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 2
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