黑龙江和河北地区大青叶蛋白SDS—PAGE分析

2015-10-21 18:44:32史连宏等
中国中医药信息杂志 2015年9期

史连宏等

摘要:目的 建立黑龙江和河北地区大青叶蛋白指纹图谱,为不同地区大青叶的鉴别和质量评价提供依据。方法 采用十二烷基磺酸钠-聚丙烯酰胺凝胶电泳(SDS-PAGE)技术,对黑龙江和河北地区的大青叶样品进行鉴别。结果 河北大青叶蛋白亚基的最大分子质量为168.2 kD,最小为19.8 kD,亚基1、6含量最高;黑龙江大庆大青叶蛋白亚基的最大分子质量为175 kD,最小为24.4 kD,亚基1、2、4含量最高;黑龙江哈尔滨大青叶蛋白亚基的最大分子质量为175 kD,最小为27.7 kD,亚基1、3含量最高。结论 SDS-PAGE技术可以用于鉴别不同地区大青叶。

关键词:大青叶;鉴别;十二烷基磺酸钠-聚丙烯酰胺凝胶电泳

DOI:10.3969/j.issn.1005-5304.2015.09.021

中圖分类号:R282.5 文献标识码:A 文章编号:1005-5304(2015)09-0076-03

Analysis on Isatidis Folium Protein in Heilongjiang and Hebei Provinces by SDS-PAGE SHI Lian-hong, YANG Xin, ZHAI Chun-mei, MENG Yong-hai (Key Laboratory of Basic and Application Research of North Chinese Medicine of the Ministry of Education, Heilongjiang University of Chinese Medicine, Heilongjang Key Laboratory of Pharmacodynamic Material Bases of TCM and Nature Medicine, Harbin 150040, China)

Abstract:Objective To build fingerprint of Isatidis Folium protein in Heiongjiang and Hebei Provinces;To provide the basis for the identification and quality evaluation of Isatidis Folium. Methods SDS-PAGE technology was used to identify the samples of Isatidis Folium protein in Heiongjiang and Hebei Provinces. Results Maximum molecular quality of Isatidis Folium protein subunit in Hebei Province was 168.2 kD, and the minimum was 19.8 kD. The subunit 1 and 6 had the highest contents. Maximum molecular quality of Isatidis Folium protein subunit in Daqing area was 175 kD, and the minimum was 24.4 kD. The subunit 1, 2 and 4 had the highest contents. Maximum molecular quality of Isatidis Folium protein subunit in Harbin area was 175 kD, and the minimum was 27.7 kD. The subunit 1 and 3 had the highest contents. Conclusion SDS-PAGE technology can be used to identify Isatidis Folium in different areas.

Key words:Isatidis Folium;identify;SDS-PAGE

根据《中华人民共和国药典》,正品板蓝根为十字花科菘蓝属植物菘蓝Isatis indigotica Fort.的干燥根,菘蓝的干燥叶为大青叶[1]。板蓝根与大青叶性味相似,均为味苦、性寒,均有药用功效和经济价值,

基金项目:黑龙江省自然科学基金面上项目(H201473);黑龙江省博士后资助课题(LBH-Z12259);黑龙江省教育厅科研课题(12531622);黑龙江中医药大学优秀青年教师支持计划项目(2012RCQ16)

通讯作者:孟永海,E-mail:124391407@qq.com

主要功效为凉血消肿、清热解毒,有抗内毒素的作用[2-3]。其不仅用于临床治疗,还可以预防疾病,应用非常广泛。本课题组前期建立了不同地区板蓝根十二烷基磺酸钠-聚丙烯酰胺凝胶电泳(SDS-PAGE)指纹图谱,明确了不同地区的板蓝根有差异性,也有相似性[4]。在此基础上,本研究建立不同地区大青叶SDS- PAGE指纹图谱,探讨其蛋白差异性。

1 仪器与试药

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