ABCC9
ATP binding cassette subfamily C member 9
Named by Dr Will Powers — at family level only
Gene summary
A protein-coding gene on chromosome 12 (drug and xenobiotic transporters). The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes.
Source: NCBI Gene, accessed 2026-10-07.
Protein reference (UniProt)
- Protein
ATP-binding cassette sub-family C member 9
- Function
Subunit of ATP-sensitive potassium channels (KATP). Can form cardiac and smooth muscle-type KATP channels with KCNJ11. KCNJ11 forms the channel pore while ABCC9 is required for activation and regulation. Can form a sulfonylurea-sensitive but ATP-insensitive potassium channel with KCNJ8 (By similarity).
- Subcellular location
Membrane.
- Associated conditions
Cardiomyopathy, dilated, 1O (CMD1O); Atrial fibrillation, familial, 12 (ATFB12); Hypertrichotic osteochondrodysplasia (HTOCD); Intellectual disability and myopathy syndrome (IDMYS).
Source: UniProtKB/Swiss-Prot O60706, release 2026_03, licensed CC BY 4.0. This is the protein’s normal biology, not evidence about post-drug syndromes; associated conditions are inherited disorders of the gene, not PFS, PSSD or PRSD.
Why its pathway is in the library
Transporters set systemic exposure to finasteride/SSRIs and clear conjugated steroid metabolites — directly relevant to both drug pharmacokinetics and Powers' clearance-centered PFS mechanism.
Written for the whole drug transporters family, not for ABCC9 specifically.
Powers’ note (his unpublished theorizing)
Powers named the ABCC transporter family (2026 summit interview, unpublished) as intracellular transporter genes implicated in metabolite clearance in his experimentally verifiable mechanism; individual ABCC members not separately named.
Mentioned in 0 corpus records
No corpus record names ABCC9 directly yet. It is in the library because it sits in a pathway the corpus tracks (Drug transporters).
Also in drug and xenobiotic transporters
All 62 genes- SLC6A4
solute carrier family 6 member 4
chr 17· Drug transporters· 10 records - ABCC2Powers
ATP binding cassette subfamily C member 2
chr 10· Drug transporters· 6 records - ABCC3Powers
ATP binding cassette subfamily C member 3
chr 17· Drug transporters· 5 records - ABCB1
ATP binding cassette subfamily B member 1
chr 7· Drug transporters· 3 records - ABCC5Powers
ATP binding cassette subfamily C member 5
chr 3· Drug transporters· 3 records - SLCO1B1Powers
solute carrier organic anion transporter family member 1B1
chr 12· Drug transporters· 4 records - SLC18A2
solute carrier family 18 member A2
chr 10· Drug transporters· 1 record - SLCO1B3
solute carrier organic anion transporter family member 1B3
chr 12· Drug transporters· 1 record
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