ABCC2
ATP-binding cassette sub-family C member 2
Also known as: CMOAT, cMRP, DJS, MRP2, MRP2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q92887
- Gene
- ABCC2
- Ensembl
- ENSG00000023839
- Chromosome
- 10
- Canonical length
- 1545 aa
- Protein class
- Cancer-related genes, Disease related genes, Enzymes, FDA approved drug targets, Human disease related genes, Metabolic proteins, Plasma proteins, Predicted membrane proteins, Transporters
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 expressed in the canalicular (apical) part of the hepatocyte and functions in biliary transport. Substrates include anticancer drugs such as vinblastine; therefore, this protein appears to contribute to drug resistance in mammalian cells. Several different mutations in this gene have been observed in patients with Dubin-Johnson syndrome (DJS), an autosomal recessive disorder characterized by conjugated hyperbilirubinemia. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
1545 residues, UniProt reviewed canonical sequence.
>Q92887|ABCC2
1 MLEKFCNSTF WNSSFLDSPE ADLPLCFEQT VLVWIPLGYL WLLAPWQLLH VYKSRTKRSS
61 TTKLYLAKQV FVGFLLILAA IELALVLTED SGQATVPAVR YTNPSLYLGT WLLVLLIQYS
121 RQWCVQKNSW FLSLFWILSI LCGTFQFQTL IRTLLQGDNS NLAYSCLFFI SYGFQILILI
181 FSAFSENNES SNNPSSIASF LSSITYSWYD SIILKGYKRP LTLEDVWEVD EEMKTKTLVS
241 KFETHMKREL QKARRALQRR QEKSSQQNSG ARLPGLNKNQ SQSQDALVLE DVEKKKKKSG
301 TKKDVPKSWL MKALFKTFYM VLLKSFLLKL VNDIFTFVSP QLLKLLISFA SDRDTYLWIG
361 YLCAILLFTA ALIQSFCLQC YFQLCFKLGV KVRTAIMASV YKKALTLSNL ARKEYTVGET
421 VNLMSVDAQK LMDVTNFMHM LWSSVLQIVL SIFFLWRELG PSVLAGVGVM VLVIPINAIL
481 STKSKTIQVK NMKNKDKRLK IMNEILSGIK ILKYFAWEPS FRDQVQNLRK KELKNLLAFS
541 QLQCVVIFVF QLTPVLVSVV TFSVYVLVDS NNILDAQKAF TSITLFNILR FPLSMLPMMI
601 SSMLQASVST ERLEKYLGGD DLDTSAIRHD CNFDKAMQFS EASFTWEHDS EATVRDVNLD
661 IMAGQLVAVI GPVGSGKSSL ISAMLGEMEN VHGHITIKGT TAYVPQQSWI QNGTIKDNIL
721 FGTEFNEKRY QQVLEACALL PDLEMLPGGD LAEIGEKGIN LSGGQKQRIS LARATYQNLD
781 IYLLDDPLSA VDAHVGKHIF NKVLGPNGLL KGKTRLLVTH SMHFLPQVDE IVVLGNGTIV
841 EKGSYSALLA KKGEFAKNLK TFLRHTGPEE EATVHDGSEE EDDDYGLISS VEEIPEDAAS
901 ITMRRENSFR RTLSRSSRSN GRHLKSLRNS LKTRNVNSLK EDEELVKGQK LIKKEFIETG
961 KVKFSIYLEY LQAIGLFSIF FIILAFVMNS VAFIGSNLWL SAWTSDSKIF NSTDYPASQR
1021 DMRVGVYGAL GLAQGIFVFI AHFWSAFGFV HASNILHKQL LNNILRAPMR FFDTTPTGRI
1081 VNRFAGDIST VDDTLPQSLR SWITCFLGII STLVMICMAT PVFTIIVIPL GIIYVSVQMF
1141 YVSTSRQLRR LDSVTRSPIY SHFSETVSGL PVIRAFEHQQ RFLKHNEVRI DTNQKCVFSW
1201 ITSNRWLAIR LELVGNLTVF FSALMMVIYR DTLSGDTVGF VLSNALNITQ TLNWLVRMTS
1261 EIETNIVAVE RITEYTKVEN EAPWVTDKRP PPDWPSKGKI QFNNYQVRYR PELDLVLRGI
1321 TCDIGSMEKI GVVGRTGAGK SSLTNCLFRI LEAAGGQIII DGVDIASIGL HDLREKLTII
1381 PQDPILFSGS LRMNLDPFNN YSDEEIWKAL ELAHLKSFVA SLQLGLSHEV TEAGGNLSIG
1441 QRQLLCLGRA LLRKSKILVL DEATAAVDLE TDNLIQTTIQ NEFAHCTVIT IAHRLHTIMD
1501 SDKVMVLDNG KIIECGSPEE LLQIPGPFYF MAKEAGIENV NSTKFLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ABCC2 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
- 17
- Mean surface accessibility (rSASA)
- 0.27
- Highest tissue expression
- 114 nTPM
Expression across tissuesHPA
Tissue
- liver: 114 nTPM
- small intestine: 38 nTPM
- duodenum: 37 nTPM
- gallbladder: 23 nTPM
- kidney: 17 nTPM
- retina: 3.6 nTPM
Single-cell type
- hepatocytes: 584 nCPM
- proximal tubule cells: 144 nCPM
- enterocytes: 71 nCPM
- epididymal basal cells: 41 nCPM
- neutrophils: 34 nCPM
- melanocytes: 31 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
- white matter: 1.1 nTPM
- cerebellum: 1 nTPM
- medulla oblongata: 0.8 nTPM
- basal ganglia: 0.7 nTPM
- cerebral cortex: 0.6 nTPM
- pons: 0.6 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about ABCC2.
Disease | AllUniProt
Conditions ABCC2 is implicated in, by any mechanism.
- Dubin-Johnson syndrome (DJS) MIM:237500
Disease | GeneticClinVar
189 pathogenic / likely-pathogenic of 1,308 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Dubin-Johnson syndrome
- ABCC2-related disorder
- Inborn genetic diseases
- Autosomal recessive inherited pseudoxanthoma elasticum
- Colon adenocarcinoma
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)
- 1.16
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.99
- DepMap mean gene effect
- -0.06
- DepMap dependency class
- selective
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
- bile acid and bile salt transport
- bilirubin transport
- cardiac muscle cell differentiation
- gene expression
- glutathione metabolic process
- glutathione transport
- heme catabolic process
- leukotriene transport
- mercury ion transport
- mRNA metabolic process
- negative regulation of gene expression
- phosphatidylinositol 3-kinase/protein kinase B signal transduction
- proximal tubule development
- response to cisplatin
- response to growth hormone
- response to insulin
- response to peptide
- response to wortmannin
- transepithelial transport
- transmembrane transport
- transport across blood-brain barrier
- xenobiotic detoxification by transmembrane export across the plasma membrane
- xenobiotic export from cell
- xenobiotic metabolic process
- xenobiotic transmembrane transport
- xenobiotic transport across blood-brain barrier
- glucuronoside transport
Molecular functions
- ABC-type glutathione S-conjugate transporter activity
- ABC-type transporter activity
- ABC-type xenobiotic transporter activity
- ATP binding
- ATP hydrolysis activity
- ATPase-coupled inorganic anion transmembrane transporter activity
- ATPase-coupled transmembrane transporter activity
- bilirubin transmembrane transporter activity
- organic anion transmembrane transporter activity
- toxin transmembrane transporter activity
- xenobiotic transmembrane transporter activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- ABC transporter-like, ATP-binding domain
- AAA+ ATPase domain
- Multi drug resistance-associated protein
- 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, TMD0 domain
- ABC transporter
- ABC transporter transmembrane region
- ABC transporter TMD0 domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ABCC2 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 ABCC2 as an antibody target. Whether an autoantibody or antibody against ABCC2 could matter depends on whether native ABCC2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ABCC2 is annotated at the cell surface, where native ABCC2 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 ABCC2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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