CLCN7: Slowly voltage-gated channel mediating the exchange of chloride ions against protons. Functions as antiporter and contributes to the acidification of the lysosome lumen. Defects in CLCN7 are the cause of osteopetrosis autosomal recessive type 4 (OPTB4); also known as infantile malignant osteopetrosis type 2. Osteopetrosis is a rare genetic disease characterized by abnormally dense bone, due to defective resorption of immature bone. The disorder occurs in two forms: a severe autosomal recessive form occurring in utero, infancy, or childhood, and a benign autosomal dominant form occurring in adolescence or adulthood. Defects in CLCN7 are the cause of osteopetrosis autosomal dominant type 2 (OPTA2); also known as autosomal dominant Albers-Schonberg disease or marble disease autosomal dominant. Osteopetrosis is a rare genetic disease characterized by abnormally dense bone, due to defective resorption of immature bone. The disorder occurs in two forms: a severe autosomal recessive form occurring in utero, infancy, or childhood, and a benign autosomal dominant form occurring in adolescence or adulthood. OPTA2 is the most common form of osteopetrosis, occurring in adolescence or adulthood. It is characterized by sclerosis, predominantly involving the spine, the pelvis and the skull base. Belongs to the chloride channel (TC 2.A.49) family. ClC-7/CLCN7 subfamily.
Protein type: Membrane protein, multi-pass; Channel, chloride; Transporter, ion channel; Transporter; Membrane protein, integral
Chromosomal Location of Human Ortholog: 16p13
Cellular Component: membrane; lysosomal membrane; integral to membrane; cytoplasmic vesicle
Molecular Function: chloride channel activity; voltage-gated chloride channel activity; ATP binding; antiporter activity
Biological Process: transport; transmembrane transport; response to pH
Disease: Osteopetrosis, Autosomal Dominant 2; Osteopetrosis, Autosomal Recessive 4
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