Seroatlas · Human Serome Atlas

ABCC3

ATP-binding cassette sub-family C member 3

Also known as: cMOAT2, EST90757, MLP2, MOAT-D, MRP3, MRP3_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
O15438
Gene
ABCC3
Ensembl
ENSG00000108846
Chromosome
17
Canonical length
1527 aa
Protein class
Cancer-related genes, Enzymes, Metabolic proteins, Predicted intracellular proteins, Predicted membrane proteins, Transporters
Subcellular location
Plasma membrane,Basal body

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. The specific function of this protein has not yet been determined; however, this protein may play a role in the transport of biliary and intestinal excretion of organic anions. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

1527 residues, UniProt reviewed canonical sequence.

>O15438|ABCC3
     1  MDALCGSGEL GSKFWDSNLS VHTENPDLTP CFQNSLLAWV PCIYLWVALP CYLLYLRHHC
    61  RGYIILSHLS KLKMVLGVLL WCVSWADLFY SFHGLVHGRA PAPVFFVTPL VVGVTMLLAT
   121  LLIQYERLQG VQSSGVLIIF WFLCVVCAIV PFRSKILLAK AEGEISDPFR FTTFYIHFAL
   181  VLSALILACF REKPPFFSAK NVDPNPYPET SAGFLSRLFF WWFTKMAIYG YRHPLEEKDL
   241  WSLKEEDRSQ MVVQQLLEAW RKQEKQTARH KASAAPGKNA SGEDEVLLGA RPRPRKPSFL
   301  KALLATFGSS FLISACFKLI QDLLSFINPQ LLSILIRFIS NPMAPSWWGF LVAGLMFLCS
   361  MMQSLILQHY YHYIFVTGVK FRTGIMGVIY RKALVITNSV KRASTVGEIV NLMSVDAQRF
   421  MDLAPFLNLL WSAPLQIILA IYFLWQNLGP SVLAGVAFMV LLIPLNGAVA VKMRAFQVKQ
   481  MKLKDSRIKL MSEILNGIKV LKLYAWEPSF LKQVEGIRQG ELQLLRTAAY LHTTTTFTWM
   541  CSPFLVTLIT LWVYVYVDPN NVLDAEKAFV SVSLFNILRL PLNMLPQLIS NLTQASVSLK
   601  RIQQFLSQEE LDPQSVERKT ISPGYAITIH SGTFTWAQDL PPTLHSLDIQ VPKGALVAVV
   661  GPVGCGKSSL VSALLGEMEK LEGKVHMKGS VAYVPQQAWI QNCTLQENVL FGKALNPKRY
   721  QQTLEACALL ADLEMLPGGD QTEIGEKGIN LSGGQRQRVS LARAVYSDAD IFLLDDPLSA
   781  VDSHVAKHIF DHVIGPEGVL AGKTRVLVTH GISFLPQTDF IIVLADGQVS EMGPYPALLQ
   841  RNGSFANFLC NYAPDEDQGH LEDSWTALEG AEDKEALLIE DTLSNHTDLT DNDPVTYVVQ
   901  KQFMRQLSAL SSDGEGQGRP VPRRHLGPSE KVQVTEAKAD GALTQEEKAA IGTVELSVFW
   961  DYAKAVGLCT TLAICLLYVG QSAAAIGANV WLSAWTNDAM ADSRQNNTSL RLGVYAALGI
  1021  LQGFLVMLAA MAMAAGGIQA ARVLHQALLH NKIRSPQSFF DTTPSGRILN CFSKDIYVVD
  1081  EVLAPVILML LNSFFNAIST LVVIMASTPL FTVVILPLAV LYTLVQRFYA ATSRQLKRLE
  1141  SVSRSPIYSH FSETVTGASV IRAYNRSRDF EIISDTKVDA NQRSCYPYII SNRWLSIGVE
  1201  FVGNCVVLFA ALFAVIGRSS LNPGLVGLSV SYSLQVTFAL NWMIRMMSDL ESNIVAVERV
  1261  KEYSKTETEA PWVVEGSRPP EGWPPRGEVE FRNYSVRYRP GLDLVLRDLS LHVHGGEKVG
  1321  IVGRTGAGKS SMTLCLFRIL EAAKGEIRID GLNVADIGLH DLRSQLTIIP QDPILFSGTL
  1381  RMNLDPFGSY SEEDIWWALE LSHLHTFVSS QPAGLDFQCS EGGENLSVGQ RQLVCLARAL
  1441  LRKSRILVLD EATAAIDLET DNLIQATIRT QFDTCTVLTI AHRLNTIMDY TRVLVLDKGV
  1501  VAEFDSPANL IAARGIFYGM ARDAGLA

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against ABCC3 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
58 nTPM

Expression across tissuesHPA

Tissue

  • adrenal gland: 58 nTPM
  • liver: 49 nTPM
  • pancreas: 23 nTPM
  • colon: 19 nTPM
  • stomach: 17 nTPM
  • small intestine: 12 nTPM

Single-cell type

  • adrenal cortex cells: 816 nCPM
  • platelets: 721 nCPM
  • foveolar cells: 490 nCPM
  • hepatocytes: 420 nCPM
  • cholangiocytes: 416 nCPM
  • colonocytes: 358 nCPM

Immune cell

  • non-classical monocyte: 6.4 nTPM
  • total PBMC: 5.4 nTPM
  • intermediate monocyte: 5.1 nTPM
  • classical monocyte: 2.3 nTPM
  • myeloid DC: 1.3 nTPM
  • neutrophil: 1 nTPM

Brain region

  • medulla oblongata: 14 nTPM
  • thalamus: 7.7 nTPM
  • white matter: 6.6 nTPM
  • spinal cord: 5.5 nTPM
  • pons: 4.6 nTPM
  • cerebral cortex: 4.4 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about ABCC3.

Disease | ImmuneIEDB

Conditions an epitope on ABCC3 was assayed in.

Disease | AutoantibodyPubMed

Conditions in which antibodies against ABCC3 are reported. Each links to that disease's full target list.

Showing 0 of 1 — disease pages carrying at least 10 antigens.

ReferencesPubMed · IEDB

Publications for ABCC3 from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.

Reference: B cellIEDB

15 publications

Show 10 more

Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. IEDB — curated epitope assays from the Immune Epitope Database (Vita et al., Nucleic Acids Research 2019). Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.

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)
0.9
gnomAD pLI
0
gnomAD missense Z
0.63
DepMap mean gene effect
-0.02
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% 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

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads ABCC3 as an antibody target. Whether an autoantibody or antibody against ABCC3 could matter depends on whether native ABCC3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

ABCC3 is annotated at the cell surface, where native ABCC3 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 ABCC3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/ABCC3. 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).

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