ABCA5
Cholesterol transporter ABCA5
Also known as: ABCA5_HUMAN, EST90625
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q8WWZ7
- Gene
- ABCA5
- Ensembl
- ENSG00000154265
- Chromosome
- 17
- Canonical length
- 1642 aa
- Protein class
- Human disease related genes, Predicted intracellular proteins, Predicted membrane proteins, Transporters
- Subcellular location
- Nucleoplasm
OverviewNCBI Gene
The membrane-associated 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 intracellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, and White). This encoded protein is a member of the ABC1 subfamily. Members of the ABC1 subfamily comprise the only major ABC subfamily found exclusively in multicellular eukaryotes. This gene is clustered among 4 other ABC1 family members on 17q24, but neither the substrate nor the function of this gene is known. Alternative splicing of this gene results in several transcript variants; however, not all variants have been fully described. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
1642 residues, UniProt reviewed canonical sequence.
>Q8WWZ7|ABCA5
1 MSTAIREVGV WRQTRTLLLK NYLIKCRTKK SSVQEILFPL FFLFWLILIS MMHPNKKYEE
61 VPNIELNPMD KFTLSNLILG YTPVTNITSS IMQKVSTDHL PDVIITEEYT NEKEMLTSSL
121 SKPSNFVGVV FKDSMSYELR FFPDMIPVSS IYMDSRAGCS KSCEAAQYWS SGFTVLQASI
181 DAAIIQLKTN VSLWKELEST KAVIMGETAV VEIDTFPRGV ILIYLVIAFS PFGYFLAIHI
241 VAEKEKKIKE FLKIMGLHDT AFWLSWVLLY TSLIFLMSLL MAVIATASLL FPQSSSIVIF
301 LLFFLYGLSS VFFALMLTPL FKKSKHVGIV EFFVTVAFGF IGLMIILIES FPKSLVWLFS
361 PFCHCTFVIG IAQVMHLEDF NEGASFSNLT AGPYPLIITI IMLTLNSIFY VLLAVYLDQV
421 IPGEFGLRRS SLYFLKPSYW SKSKRNYEEL SEGNVNGNIS FSEIIEPVSS EFVGKEAIRI
481 SGIQKTYRKK GENVEALRNL SFDIYEGQIT ALLGHSGTGK STLMNILCGL CPPSDGFASI
541 YGHRVSEIDE MFEARKMIGI CPQLDIHFDV LTVEENLSIL ASIKGIPANN IIQEVQKVLL
601 DLDMQTIKDN QAKKLSGGQK RKLSLGIAVL GNPKILLLDE PTAGMDPCSR HIVWNLLKYR
661 KANRVTVFST HFMDEADILA DRKAVISQGM LKCVGSSMFL KSKWGIGYRL SMYIDKYCAT
721 ESLSSLVKQH IPGATLLQQN DQQLVYSLPF KDMDKFSGLF SALDSHSNLG VISYGVSMTT
781 LEDVFLKLEV EAEIDQADYS VFTQQPLEEE MDSKSFDEME QSLLILSETK AALVSTMSLW
841 KQQMYTIAKF HFFTLKRESK SVRSVLLLLL IFFTVQIFMF LVHHSFKNAV VPIKLVPDLY
901 FLKPGDKPHK YKTSLLLQNS ADSDISDLIS FFTSQNIMVT MINDSDYVSV APHSAALNVM
961 HSEKDYVFAA VFNSTMVYSL PILVNIISNY YLYHLNVTET IQIWSTPFFQ EITDIVFKIE
1021 LYFQAALLGI IVTAMPPYFA MENAENHKIK AYTQLKLSGL LPSAYWIGQA VVDIPLFFII
1081 LILMLGSLLA FHYGLYFYTV KFLAVVFCLI GYVPSVILFT YIASFTFKKI LNTKEFWSFI
1141 YSVAALACIA ITEITFFMGY TIATILHYAF CIIIPIYPLL GCLISFIKIS WKNVRKNVDT
1201 YNPWDRLSVA VISPYLQCVL WIFLLQYYEK KYGGRSIRKD PFFRNLSTKS KNRKLPEPPD
1261 NEDEDEDVKA ERLKVKELMG CQCCEEKPSI MVSNLHKEYD DKKDFLLSRK VKKVATKYIS
1321 FCVKKGEILG LLGPNGAGKS TIINILVGDI EPTSGQVFLG DYSSETSEDD DSLKCMGYCP
1381 QINPLWPDTT LQEHFEIYGA VKGMSASDMK EVISRITHAL DLKEHLQKTV KKLPAGIKRK
1441 LCFALSMLGN PQITLLDEPS TGMDPKAKQH MWRAIRTAFK NRKRAAILTT HYMEEAEAVC
1501 DRVAIMVSGQ LRCIGTVQHL KSKFGKGYFL EIKLKDWIEN LEVDRLQREI QYIFPNASRQ
1561 ESFSSILAYK IPKEDVQSLS QSFFKLEEAK HAFAIEEYSF SQATLEQVFV ELTKEQEEED
1621 NSCGTLNSTL WWERTQEDRV VFLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ABCA5 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
- 30 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 30 nTPM
- retina: 25 nTPM
- skin: 22 nTPM
- cerebellum: 20 nTPM
- liver: 20 nTPM
- pancreas: 17 nTPM
Single-cell type
- myonuclei: 918 nCPM
- distal convoluted tubule cells: 828 nCPM
- gonadotrophs: 718 nCPM
- renal collecting duct intercalated cells: 494 nCPM
- somatotrophs: 447 nCPM
- early primary spermatocytes: 335 nCPM
Immune cell
- naive B-cell: 2.3 nTPM
- eosinophil: 2.1 nTPM
- MAIT T-cell: 1.8 nTPM
- plasmacytoid DC: 1.8 nTPM
- memory CD4 T-cell: 1.7 nTPM
- memory CD8 T-cell: 1.5 nTPM
Brain region
- cerebellum: 81 nTPM
- choroid plexus: 49 nTPM
- hypothalamus: 48 nTPM
- cerebral cortex: 47 nTPM
- medulla oblongata: 42 nTPM
- pons: 42 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about ABCA5.
Disease | GeneticClinVar
9 pathogenic / likely-pathogenic of 300 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Gingival fibromatosis-hypertrichosis syndrome
- See cases
- Hypercholesterolemia, familial, 1
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)
- 0.84
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.37
- DepMap mean gene effect
- -0.01
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cholesterol efflux
- cholesterol homeostasis
- cholesterol metabolic process
- high-density lipoprotein particle remodeling
- lipid transport
- negative regulation of macrophage derived foam cell differentiation
- positive regulation of reverse cholesterol transport
- regulation of cholesterol efflux
- reverse cholesterol transport
Molecular functions
- ABC-type transporter activity
- ATP binding
- ATP hydrolysis activity
- ATPase-coupled transmembrane transporter activity
- lipid transporter activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- ABC transporter-like, ATP-binding domain
- AAA+ ATPase domain
- ABC-2 type transporter, transmembrane domain
- ABC transporter-like, conserved site
- ABC transporter A
- P-loop containing nucleoside triphosphate hydrolase
- ABCA1-4-like, C-terminal R2 regulatory domain
- ABC transporter
- ABC-2 family transporter protein
- ABCA1-like, C-terminal R1 regulatory domain
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads ABCA5 as an antibody target. Whether an autoantibody or antibody against ABCA5 could matter depends on whether native ABCA5 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ABCA5 is annotated at the cell surface, where native ABCA5 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 ABCA5 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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