The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Somatic hypermutation (SHM) of immunoglobulin (Ig) genes appears to involve the generation of double-strand DNA breaks (DSBs) and their error-prone repair. Here we show that DSBs occur at a high frequency in unrearranged (germline) Ig variable (V) genes, BCL6 and c-MYC. These DSBs are blunt, target the mutational RGYW/RGY hotspot, and would be resolved through nonhomologous end-joining, as indicated...
Ig somatic mutations would be introduced by a polymerase (pol) while repairing DNA outside main DNA replication. We show that human B cells constitutively express the translesion pol ζ, which effectively extends DNA past mismatched bases (mispair extender), and pol η, which bypasses DNA lesions in an error-free fashion. Upon B cell receptor (BCR) engagement and coculture with activated CD4 + ...
We used our monoclonal model of germinal center maturation, CL-01 B cells, to investigate the role of CD30 in human B cell differentiation. CL-01 cells are IgM + IgD + CD30 + and switch to IgG, IgA, and IgE when exposed to CD40L and IL-4. Switching is hampered by CD30 coengagement, possibly through interference with the CD40-mediated NF-κB-dependent transcriptional activation...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.