Regulation of anti-phosphatidylserine antibodies |
| |
Authors: | Li Hui Jiang Yufei Cao Hong Radic Marko Prak Eline Luning Weigert Martin |
| |
Institution: | Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA. |
| |
Abstract: | The degree of heavy chain (H) editing, the types of Vkappa editors, and the pattern of Jkappa usage are correlated with a range of the affinity of anti-DNA. This range was determined by the number and location of arginine (R) residues in the VH. We, here, changed a key arginine residue in the VH of anti-DNA transgene to glycine, which sharply reduces the affinity for dsDNA. However, complete reversion of this anti-DNA to germline enhances the affinity for phosphatidylserine (PS). The B cells of this low-affinity anti-DNA and anti-PS transgenic mouse are tightly regulated by receptor editing. Thus, anti-PS B cells are another example of a constitutive self-antigen regulated in the bone marrow. |
| |
Keywords: | |
本文献已被 ScienceDirect PubMed 等数据库收录! |
|