| mRNA IDs | Primary Information | |
| NM_020661.1 | Gene Symbol | AICDA |
| Protein Name | Activation-induced cytidine deaminase | |
| Alternate Names | AID, ARP2, CDA2, HIGM2 | |
| Gene Locus | 12p13 | |
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| Disease name | Characteristic / Associated features | Category | inheritance type |
| Activation-induced cytidine deaminase deficiency | Recurrent upper and lower respiratory tract infections; Gastrointestinal infections;Low-absent IgG, IgA; Normal-elevated IgM; Impaired Ig class switch recombination (CSR); Lymphadenopathy; Giant germinal centers in lymph nodes; Normal number of B cells; Defective generation of somatic hypermutations (SHM); Recurrent bacterial infections; No opportunistic infections | Predominantly antibody deficiencies | Autosomal recessive |