AID mutant analyses indicate requirement for class-switch-specific cofactors

Activation-induced cytidine deaminase (AID) is the essential and sole B cell–specific factor required for class-switch recombination (CSR) and somatic hypermutation (SHM). However, it is not known how AID differentially regulates these two independent events. Involvement of several cofactors interacting with AID has been indicated by scattered distribution… CONTINUE READING