Aliases for OPA1 Gene
External Ids for OPA1 Gene
This gene product is a nuclear-encoded mitochondrial protein with similarity to dynamin-related GTPases. It is a component of the mitochondrial network. Mutations in this gene have been associated with optic atrophy type 1, which is a dominantly inherited optic neuropathy resulting in progressive loss of visual acuity, leading in many cases to legal blindness. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]
GeneCards Summary for OPA1 Gene
OPA1 (Optic Atrophy 1 (Autosomal Dominant)) is a Protein Coding gene. Diseases associated with OPA1 include optic atrophy 1 and optic atrophy plus syndrome. GO annotations related to this gene include GTP binding and magnesium ion binding.
UniProtKB/Swiss-Prot for OPA1 Gene
Dynamin-related GTPase required for mitochondrial fusion and regulation of apoptosis. May form a diffusion barrier for proteins stored in mitochondrial cristae. Proteolytic processing in response to intrinsic apoptotic signals may lead to disassembly of OPA1 oligomers and release of the caspase activator cytochrome C (CYCS) into the mitochondrial intermembrane space. May also play a role in mitochondrial genome maintenance.
Dynamin-like 120 kDa protein, form S1: Inactive form produced by cleavage at S1 position by OMA1 following stress conditions that induce loss of mitochondrial membrane potential, leading to negative regulation of mitochondrial fusion.