RNA aptamers specifically interact with the Fc region of mouse immunoglobulin G
Nobuya Sakai1, Hiromi Masuda, Joe Akitomi
1VALWAY Technology Center, NEC Soft, Ltd., Tokyo, 136-8627, Japan.
Abstract:
We have designed the in vitro selection method to obtain some aptamers such as a general antibody-probing agent, which might bind to the constant regions of mouse immunoglobulin G (IgG) subclasses. As a consequence, one of the selected aptamers found to recognize mouse IgG1, 2a, and 3 subclasses. According to the binding assay, it is suggested that this aptamer recognizes the constant regions of mouse IgG subclass. In addition, this aptamer could recognize the only native form of mouse IgGs but the denatured IgGs. These features show the advantage of the aptamer as an antibody-probing agent rather than the usual secondary antibodies.
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