CLCN4A gene on chromosome Xp22.3 that encodes a voltage-gated chloride channel. CLCN4 has an evolutionary conserved CpG island, and maps close to apical protein Xenopus laevis (APXL)-like and ocular albinism type I (OA1), which are both located on Xp22.3. Its physiologic role is unknown, but may be linked to neuronal disease.
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