Protein Variants | Comment | Organism |
---|---|---|
S3A | purified recombinant mutant enzyme S3A and wild-type have similar deamination activities on an ssDNA substrate in vitro. AID-/- B cells expressing AIDS3A show a consistently higher percentage of class-switched IgG1-expressing B cells than control enzyme. Mutating S3 to A does not alter catalysis but does result in increased AID activity in class switch recombination | Mus musculus |
S3D | AID-/- B cells expressing AID-S3D show a consistently higher percentage of class-switched IgG1-expressing B cells than control enzyme. Mutating S3 to A does not alter catalysis but does result in increased AID activity in class switch recombination | Mus musculus |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
cytosine in single-stranded DNA + H2O | Mus musculus | the enzyme initiates class switch recombination and somatic hypermutation of immunoglobulin genes in B lymphocytes. Activation-induced cytidine deaminase also produces off-target DNA damage, including mutations in oncogenes and double-stranded breaks that can serve as substrates for oncogenic chromosomal translocations | uracil in single-stranded DNA + NH3 | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Mus musculus | Q9WVE0 | - |
- |
Posttranslational Modification | Comment | Organism |
---|---|---|
phosphoprotein | phosphorylation at serine 38 and threonine 140 increases activity. Activation-induced cytidine deaminase activity and its oncogenic potential can be downregulated by phosphorylation of Ser3. This process is controlled by serine/threonine protein phosphatase 2A | Mus musculus |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
B-lymphocyte | - |
Mus musculus | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
cytosine in single-stranded DNA + H2O | - |
Mus musculus | uracil in single-stranded DNA + NH3 | - |
? | |
cytosine in single-stranded DNA + H2O | the enzyme initiates class switch recombination and somatic hypermutation of immunoglobulin genes in B lymphocytes. Activation-induced cytidine deaminase also produces off-target DNA damage, including mutations in oncogenes and double-stranded breaks that can serve as substrates for oncogenic chromosomal translocations | Mus musculus | uracil in single-stranded DNA + NH3 | - |
? |
Synonyms | Comment | Organism |
---|---|---|
activation-induced cytidine deaminase | - |
Mus musculus |
AID | - |
Mus musculus |
General Information | Comment | Organism |
---|---|---|
physiological function | the enzyme initiates class switch recombination and somatic hypermutation of immunoglobulin genes in B lymphocytes. Activation-induced cytidine deaminase also produces off-target DNA damage, including mutations in oncogenes and double-stranded breaks that can serve as substrates for oncogenic chromosomal translocations | Mus musculus |