ABCC9
ATP-binding cassette sub-family C member 9
Also known as: ABCC9_HUMAN, CMD1O, SUR2
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O60706
- Gene
- ABCC9
- Ensembl
- ENSG00000069431
- Chromosome
- 12
- Canonical length
- 1549 aa
- Protein class
- Disease related genes, FDA approved drug targets, Human disease related genes, Metabolic proteins, Predicted membrane proteins, Transporters
- Subcellular location
- Nucleoplasm,Plasma membrane
OverviewNCBI Gene
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]
Canonical amino-acid sequenceUniProt
1549 residues, UniProt reviewed canonical sequence.
>O60706|ABCC9
1 MSLSFCGNNI SSYNINDGVL QNSCFVDALN LVPHVFLLFI TFPILFIGWG SQSSKVQIHH
61 NTWLHFPGHN LRWILTFALL FVHVCEIAEG IVSDSRRESR HLHLFMPAVM GFVATTTSIV
121 YYHNIETSNF PKLLLALFLY WVMAFITKTI KLVKYCQSGL DISNLRFCIT GMMVILNGLL
181 MAVEINVIRV RRYVFFMNPQ KVKPPEDLQD LGVRFLQPFV NLLSKATYWW MNTLIISAHK
241 KPIDLKAIGK LPIAMRAVTN YVCLKDAYEE QKKKVADHPN RTPSIWLAMY RAFGRPILLS
301 STFRYLADLL GFAGPLCISG IVQRVNETQN GTNNTTGISE TLSSKEFLEN AYVLAVLLFL
361 ALILQRTFLQ ASYYVTIETG INLRGALLAM IYNKILRLST SNLSMGEMTL GQINNLVAIE
421 TNQLMWFLFL CPNLWAMPVQ IIMGVILLYN LLGSSALVGA AVIVLLAPIQ YFIATKLAEA
481 QKSTLDYSTE RLKKTNEILK GIKLLKLYAW EHIFCKSVEE TRMKELSSLK TFALYTSLSI
541 FMNAAIPIAA VLATFVTHAY ASGNNLKPAE AFASLSLFHI LVTPLFLLST VVRFAVKAII
601 SVQKLNEFLL SDEIGDDSWR TGESSLPFES CKKHTGVQPK TINRKQPGRY HLDSYEQSTR
661 RLRPAETEDI AIKVTNGYFS WGSGLATLSN IDIRIPTGQL TMIVGQVGCG KSSLLLAILG
721 EMQTLEGKVH WSNVNESEPS FEATRSRNRY SVAYAAQKPW LLNATVEENI TFGSPFNKQR
781 YKAVTDACSL QPDIDLLPFG DQTEIGERGI NLSGGQRQRI CVARALYQNT NIVFLDDPFS
841 ALDIHLSDHL MQEGILKFLQ DDKRTLVLVT HKLQYLTHAD WIIAMKDGSV LREGTLKDIQ
901 TKDVELYEHW KTLMNRQDQE LEKDMEADQT TLERKTLRRA MYSREAKAQM EDEDEEEEEE
961 EDEDDNMSTV MRLRTKMPWK TCWRYLTSGG FFLLILMIFS KLLKHSVIVA IDYWLATWTS
1021 EYSINNTGKA DQTYYVAGFS ILCGAGIFLC LVTSLTVEWM GLTAAKNLHH NLLNKIILGP
1081 IRFFDTTPLG LILNRFSADT NIIDQHIPPT LESLTRSTLL CLSAIGMISY ATPVFLVALL
1141 PLGVAFYFIQ KYFRVASKDL QELDDSTQLP LLCHFSETAE GLTTIRAFRH ETRFKQRMLE
1201 LTDTNNIAYL FLSAANRWLE VRTDYLGACI VLTASIASIS GSSNSGLVGL GLLYALTITN
1261 YLNWVVRNLA DLEVQMGAVK KVNSFLTMES ENYEGTMDPS QVPEHWPQEG EIKIHDLCVR
1321 YENNLKPVLK HVKAYIKPGQ KVGICGRTGS GKSSLSLAFF RMVDIFDGKI VIDGIDISKL
1381 PLHTLRSRLS IILQDPILFS GSIRFNLDPE CKCTDDRLWE ALEIAQLKNM VKSLPGGLDA
1441 VVTEGGENFS VGQRQLFCLA RAFVRKSSIL IMDEATASID MATENILQKV VMTAFADRTV
1501 VTIAHRVSSI MDAGLVLVFS EGILVECDTV PNLLAHKNGL FSTLVMTNKLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ABCC9 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 15
- Mean surface accessibility (rSASA)
- 0.26
- Highest tissue expression
- 28 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 28 nTPM
- liver: 28 nTPM
- adipose tissue: 22 nTPM
- heart muscle: 20 nTPM
- tongue: 19 nTPM
- smooth muscle: 14 nTPM
Single-cell type
- myonuclei: 482 nCPM
- pericytes: 414 nCPM
- cardiomyocytes: 233 nCPM
- hepatocytes: 217 nCPM
- ependymal cells: 169 nCPM
- smooth muscle cells: 144 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- choroid plexus: 33 nTPM
- cerebral cortex: 26 nTPM
- midbrain: 24 nTPM
- medulla oblongata: 21 nTPM
- thalamus: 20 nTPM
- white matter: 20 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about ABCC9.
Disease | AllUniProt
Conditions ABCC9 is implicated in, by any mechanism.
- Cardiomyopathy, dilated, 1O (CMD1O) MIM:608569
- Atrial fibrillation, familial, 12 (ATFB12) MIM:614050
- Hypertrichotic osteochondrodysplasia (HTOCD) MIM:239850
- Intellectual disability and myopathy syndrome (IDMYS) MIM:619719
Disease | GeneticClinVar
104 pathogenic / likely-pathogenic of 2,199 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Dilated cardiomyopathy 1O
- Hypertrichotic osteochondrodysplasia Cantu type
- ABCC9-related disorder
- Cardiovascular phenotype
- Intellectual disability and myopathy syndrome
Disease | ImmuneIEDB
Conditions an epitope on ABCC9 was assayed in.
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.48
- gnomAD pLI
- 0
- gnomAD missense Z
- 4.97
- DepMap mean gene effect
- 0.01
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- action potential
- ATP metabolic process
- cardiac conduction
- cardiac muscle cell contraction
- cellular respiration
- cellular response to ATP
- cellular response to calcium ion
- cellular response to chemical stress
- cellular response to potassium ion
- cellular response to xenobiotic stimulus
- coronary vasculature development
- defense response to virus
- fatty acid oxidation
- fibroblast proliferation
- gene expression
- heart morphogenesis
- inorganic cation transmembrane transport
- MAPK cascade
- mitochondrion organization
- monoatomic cation transmembrane transport
- negative regulation of apoptotic process
- negative regulation of blood pressure
- oxygen metabolic process
- potassium ion import across plasma membrane
- potassium ion transmembrane transport
- reactive oxygen species biosynthetic process
- regulation of potassium ion transmembrane transport
- regulation of transcription by RNA polymerase II
- response to activity
- response to ATP
- response to estrogen
- response to hydrogen peroxide
- response to hydrogen sulfide
- response to hypoxia
- response to peptide
- skeletal muscle tissue development
- transmembrane transport
- transport across blood-brain barrier
- vasodilation
Molecular functions
- ABC-type transporter activity
- ATP binding
- ATP hydrolysis activity
- ATPase-coupled inorganic anion transmembrane transporter activity
- ATPase-coupled monoatomic cation transmembrane transporter activity
- ATPase-coupled transmembrane transporter activity
- potassium channel activator activity
- potassium channel activity
- potassium channel regulator activity
- protein-containing complex binding
- sulfonylurea receptor activity
- transmembrane transporter binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- ATP-binding cassette sub-family C member 8/9
- ABC transporter-like, ATP-binding domain
- AAA+ ATPase domain
- ABC transporter type 1, transmembrane domain
- ABC transporter-like, conserved site
- P-loop containing nucleoside triphosphate hydrolase
- ABC transporter type 1, transmembrane domain superfamily
- ATP-binding cassette transporter C-like
- ABC transporter
- ABC transporter transmembrane region
- ATP-binding cassette subfamily C member 9
- ATP-binding cassette sub-family C member 9, ATP-binding cassette domain 1
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ABCC9 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads ABCC9 as an antibody target. Whether an autoantibody or antibody against ABCC9 could matter depends on whether native ABCC9 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ABCC9 is annotated at the cell surface, where native ABCC9 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label ABCC9 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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