Entrez Summary: 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. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MRP subfamily which is involved in multi-drug resistance. This protein is thought to form ATP-sensitive potassium channels in cardiac, skeletal, and vascular and non-vascular smooth muscle. Protein structure suggests a role as the drug-binding channel-modulating subunit of the extra-pancreatic ATP-sensitive potassium channels. Mutations in this gene are associated with cardiomyopathy dilated type 1O. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2011].
UniProt Summary: 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. {ECO:0000269|PubMed:9831708}.
Pfam DomainsGO Terms
Pfam Domains
ABC membrane
ABC tran
GO Terms
sulfonylurea receptor activity
inward rectifying potassium channel
potassium channel activity
potassium channel regulator activity
potassium ion import across plasma membrane
sarcomere
ATPase-coupled transmembrane transporter activity
regulation of cardiac conduction
inorganic ion import across plasma membrane
inorganic cation import across plasma membrane
import across plasma membrane
sarcolemma
ion channel binding
potassium ion transmembrane transport
potassium ion transport
defense response to virus
ATPase activity
regulation of heart contraction
response to virus
regulation of blood circulation
monovalent inorganic cation transport
inorganic cation transmembrane transport
regulation of system process
cation transmembrane transport
metal ion transport
inorganic ion transmembrane transport
import into cell
cation transport
ion transmembrane transport
defense response to other organism
response to drug
immune effector process
transmembrane transport
response to other organism
response to external biotic stimulus
response to biotic stimulus
defense response
ion transport
ATP binding
membrane
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)
Compound Hit
No hits were found.
Most Correlated Genes in Chemogenomics
No correlation found to any other genes in chemogenomics.
Tissues where Essential in the Avana Dataset (DepMap 20Q1)
Global Fraction of Cell Lines Where Essential: 0/739