Human napsin A:: expression, immunochemical detection, and tissue localization

被引:51
作者
Schauer-Vukasinovic, V [1 ]
Bur, D [1 ]
Kling, D [1 ]
Grüninger, F [1 ]
Giller, T [1 ]
机构
[1] F Hoffmann La Roche & Co Ltd, Div Pharma, CH-4070 Basel, Switzerland
关键词
human napsin A; expression; napsin A antibody; immunohistochemistry; human kidney; human lung;
D O I
10.1016/S0014-5793(99)01458-1
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A novel aspartic proteinase, called napsin, has recently been found in human and mouse. Due to high similarity with cathepsin D a structural model of human napsin A could be built. Based on this model a potential epitope SFYLNRDPEEPDGGE has been identified, which was used to immunize rabbits. The resulting antibody was employed in monitoring the expression of recombinant human napsin A in HEK293 cell line. Western blot analysis confirmed the specificity of the antibody and showed that human napsin A is expressed as a single chain protein with the molecular weight of approximately 38 kDa, Immunohistochemical studies revealed high expression levels of napsin A in human kidney and lung but low expression in spleen. (C) 1999 Federation of European Biochemical Societies.
引用
收藏
页码:135 / 139
页数:5
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