ADD2
Description
The ADD2 (adducin 2) is a protein-coding gene located on chromosome 2.
ADD2 encodes the beta-adducin protein, a key component of the adducin family, which are heteromeric proteins involved in the assembly of the spectrin-actin network in cells. Adducins are comprised of alpha, beta, and gamma subunits, each encoded by separate genes. While adducin alpha and gamma are expressed throughout the body, beta-adducin is primarily found in the brain and hematopoietic tissues. Originally identified in red blood cells, beta-adducin forms a heterodimer with alpha-adducin. Polymorphisms in these subunits have been linked to blood pressure regulation. The protein has two distinct domains: a globular amino-terminal region and a protease-sensitive carboxy-terminal region. The carboxy-terminal domain contains phosphorylation sites, a calmodulin binding site, and is essential for interactions with spectrin and actin.
ADD2 is also known as ADDB.
Associated Diseases
- dehydrated hereditary stomatocytosis
- severe congenital hypochromic anemia with ringed sideroblasts
- beta-thalassemia-X-linked thrombocytopenia syndrome
- hemoglobin D disease
- primary familial polycythemia due to EPO receptor mutation
- hereditary persistence of fetal hemoglobin-sickle cell disease syndrome
- microcytic anemia with liver iron overload
- dominant beta-thalassemia
- cryohydrocytosis
- familial pseudohyperkalemia
- Rh deficiency syndrome
- sideroblastic anemia 3
- hereditary elliptocytosis
- hemoglobin E-beta-thalassemia syndrome
- overhydrated hereditary stomatocytosis
- hemoglobin E disease
- hereditary spherocytosis type 4
