Seroatlas · Human Serome Atlas

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 NSTKF

LocalizationUniProt · 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.

Disease | GeneticClinVar

189 pathogenic / likely-pathogenic of 1,308 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

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.

Canonical record: https://seroatlas.com/gene/ABCC2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

Loading the interactive Seroatlas protein explorer...