Previous symbols: CABC1, ADCK3. Aliases: COQ8, SCAR9.
COQ8A (coenzyme Q8A) is named by 2 disorder entries.
ai-gene-review gives COQ8A's core molecular functions as ATP binding; and ATP hydrolysis activity, acting in ubiquinone biosynthetic process. Despite its protein-kinase-like fold and its older name ADCK3, COQ8A is recorded with ATPase activity, not protein kinase activity: it supports the CoQ biosynthetic complex rather than catalysing a named chemical step of the pathway. The upstream review is being updated to place COQ8A in the ubiquinone biosynthesis complex and the mitochondrial inner membrane; the pinned ingest snapshot still carries the earlier, more generic terms.
Two entries type COQ8A as causative: Autosomal Recessive Ataxia Due to Ubiquinone Deficiency; and Primary Coenzyme Q10 Deficiency. Primary Coenzyme Q10 Deficiency records the variants as germline. There the gene sits on Defective COQ8 Kinase Support of CoQ10 Biosynthesis, together with its paralogue COQ8B, and on the shared node Defective CoQ10 Biosynthesis.
The entry for the ataxia COQ8A causes, Autosomal Recessive Ataxia Due to Ubiquinone Deficiency, types the gene as causative with a germline origin, and places it on COQ8A-Dependent Coenzyme Q10 Deficiency.
The KB mechanism nodes and ai-gene-review share ubiquinone biosynthetic process as a GO process by exact identifier.
ClinGen classifies COQ8A for 0 diseases in the cached snapshot.
Underlined values are claims re-computed from the knowledge base each time this page is built. The tables below are the source of truth.
ai-gene-review has this gene at status INITIALIZED; the description is shown only once the review is complete. Read the draft upstream.
Relationship is the entry's genetic[].relationship_type. untyped means the entry has a genetic record for the gene but does not type it; its free-text association is shown instead.
| Disorder | Relationship | Where the gene appears |
|---|---|---|
| Autosomal Recessive Ataxia Due to Ubiquinone Deficiency | causative germline |
mechanism: COQ8A-Dependent Coenzyme Q10 Deficiency
animal model: fruit fly (Drosophila melanogaster); mouse (Mus musculus)
|
| Primary Coenzyme Q10 Deficiency | causative germline |
mechanism: Defective COQ8 Kinase Support of CoQ10 Biosynthesis; Defective CoQ10 Biosynthesis
subtype: COQ8A
scoped to subtype: COQ8A
|
Identity from HGNC (snapshot 2026-10-01). Page layers are described in the gene pages documentation.