Anti-Mouse AID Purified (To Be Discontinued; refer to Cat. No. 14-5959)

Description: The eBio911 antibody reacts with mouse activation-induced cytidine deaminase (AID), a member of the cytidine deaminase family, which was cloned from a mouse B-cell lymphoma line induced by combined stimulation with transforming growth factor-beta, interleukin-4, and CD40 ligand. The human AID gene encodes a 198-amino acid protein containing a conserved cytidine deaminase motif. The human AID protein shares 92% amino acid identity with mouse AID. RT-PCR analysis of 15 human tissues detected strong expression of AID mRNA in lymph nodes and tonsils.
Class switch recombination (CSR) is a region-specific DNA recombination reaction that replaces one immunoglobulin (Ig) heavy-chain constant region gene with another. This enables a single variable region gene to be used in conjunction with different downstream heavy-chain constant region genes, each having a unique biologic activity. AID, a putative RNA editing enzyme, is required for this action.

References: Muramatsu, M., V.S. Sankaranand, S. Anant, M. Sugai, K. Kinoshita, N.O. Davidson, and T. Honjo. 1999. Specific expression of activation-induced cytidine deaminase (AID), a novel member of the RNA-editing deaminase family in germinal center B cells. J. Biol. Chem. 274: 18470-18476.

Kinoshita, K., M. Harigai, S. Fagarasan, M. Muramatsu, and T. Honjo. 2001. A hallmark of active class switch recombination: transcripts directed by I promoters on looped-out circular DNAs. PNAS. 98: 12620-12633.

Nagaoka H., M. Muramatsu, N. Yamamura, K. Kinoshita, and T. Honjo. 2002. Activation-induced deaminase (AID)-directed hypermutation in the immunoglobulin Sµ region: implication of AID involvement in a common step of class switch recombination and somatic hypermutation. J. Exp. Med. 195: 539-534.