SLC26A2: Sulfate transporter. May play a role in endochondral bone formation. Defects in SLC26A2 are the cause of diastrophic dysplasia (DTD). DTD is an autosomal recessive disease characterized by osteochondrodysplasia with clinical features including dwarfism, spinal deformation, and specific joint abnormalities. Defects in SLC26A2 are the cause of achondrogenesis type 1B (ACG1B). ACG1B is a recessively inherited chondrodysplasia characterized by extremely poor skeletal development and perinatal death. Defects in SLC26A2 are the cause of atelosteogenesis type 2 (AO2); also known as neonatal osseous dysplasia 1. AO2 is characterized by severely shortened limbs, small chest, scoliosis, club foot of the equinovarus type (talipes equinovarus), abducted thumbs and great toes, and cleft palate. Patients die of respiratory insufficiency shortly after birth because of the collapse of the airways and pulmonary hypoplasia due to the small rib cage. Defects in SLC26A2 are the cause of multiple epiphyseal dysplasia type 4 (EDM4). EDM is a generalized skeletal dysplasia associated with significant morbidity. Joint pain, joint deformity, waddling gait, and short stature are the main clinical signs and symptoms. EDM is broadly categorized into the more severe Fairbank and the milder Ribbing types. EDM4 is a recessively inherited form, characterized by early childhood-onset hip dysplasia and recurrent patella dislocation. Short stature in EDM4 patients is not frequent. Belongs to the SLC26A/SulP transporter (TC 2.A.53) family.
Protein type: Membrane protein, integral; Membrane protein, multi-pass; Transporter; Transporter, SLC family
Cellular Component: membrane; integral to membrane
Molecular Function: sulfate transmembrane transporter activity; secondary active sulfate transmembrane transporter activity
Biological Process: ossification; transport; sulfate transport; ion transport; transmembrane transport
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