ATP10B
Phospholipid-transporting ATPase VB
Also known as: AT10B_HUMAN, ATPVB, FLJ21477, KIAA0715
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O94823
- Gene
- ATP10B
- Ensembl
- ENSG00000118322
- Chromosome
- 5
- Canonical length
- 1461 aa
- Protein class
- Enzymes, Predicted intracellular proteins, Predicted membrane proteins
OverviewNCBI Gene
Enables glycosylceramide flippase activity and phosphatidylcholine flippase activity. Involved in lysosomal membrane organization. Located in endoplasmic reticulum; late endosome membrane; and lysosomal membrane. Part of phospholipid-translocating ATPase complex. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
1461 residues, UniProt reviewed canonical sequence.
>O94823|ATP10B
1 MALSVDSSWH RWQWRVRDGF PHCPSETTPL LSPEKGRQSY NLTQQRVVFP NNSIFHQDWE
61 EVSRRYPGNR TCTTKYTLFT FLPRNLFEQF HRWANLYFLF LVILNWMPSM EVFHREITML
121 PLAIVLFVIM IKDGMEDFKR HRFDKAINCS NIRIYERKEQ TYVQKCWKDV RVGDFIQMKC
181 NEIVPADILL LFSSDPNGIC HLETASLDGE TNLKQRCVVK GFSQQEVQFE PELFHNTIVC
241 EKPNNHLNKF KGYMEHPDQT RTGFGCESLL LRGCTIRNTE MAVGIVIYAG HETKAMLNNS
301 GPRYKRSKIE RRMNIDIFFC IGILILMCLI GAVGHSIWNG TFEEHPPFDV PDANGSFLPS
361 ALGGFYMFLT MIILLQVLIP ISLYVSIELV KLGQVFFLSN DLDLYDEETD LSIQCRALNI
421 AEDLGQIQYI FSDKTGTLTE NKMVFRRCTI MGSEYSHQEN AKRLETPKEL DSDGEEWTQY
481 QCLSFSARWA QDPATMRSQK GAQPLRRSQS ARVPIQGHYR QRSMGHRESS QPPVAFSSSI
541 EKDVTPDKNL LTKVRDAALW LETLSDSRPA KASLSTTSSI ADFFLALTIC NSVMVSTTTE
601 PRQRVTIKPS SKALGTSLEK IQQLFQKLKL LSLSQSFSST APSDTDLGES LGANVATTDS
661 DERDDASVCS GGDSTDDGGY RSSMWDQGDI LESGSGTSLE EALEAPATDL ARPEFCYEAE
721 SPDEAALVHA AHAYSFTLVS RTPEQVTVRL PQGTCLTFSL LCTLGFDSVR KRMSVVVRHP
781 LTGEIVVYTK GADSVIMDLL EDPACVPDIN MEKKLRKIRA RTQKHLDLYA RDGLRTLCIA
841 KKVVSEEDFR RWASFRREAE ASLDNRDELL METAQHLENQ LTLLGATGIE DRLQEGVPDT
901 IATLREAGIQ LWVLTGDKQE TAVNIAHSCR LLNQTDTVYT INTENQETCE SILNCALEEL
961 KQFRELQKPD RKLFGFRLPS KTPSITSEAV VPEAGLVIDG KTLNAIFQGK LEKKFLELTQ
1021 YCRSVLCCRS TPLQKSMIVK LVRDKLRVMT LSIGDGANDV SMIQAADIGI GISGQEGMQA
1081 VMSSDFAITR FKHLKKLLLV HGHWCYSRLA RMVVYYLYKN VCYVNLLFWY QFFCGFSSST
1141 MIDYWQMIFF NLFFTSLPPL VFGVLDKDIS AETLLALPEL YKSGQNSECY NLSTFWISMV
1201 DAFYQSLICF FIPYLAYKGS DIDVFTFGTP INTISLTTIL LHQAMEMKTW TIFHGVVLLG
1261 SFLMYFLVSL LYNATCVICN SPTNPYWVME GQLSNPTFYL VCFLTPVVAL LPRYFFLSLQ
1321 GTCGKSLISK AQKIDKLPPD KRNLEIQSWR SRQRPAPVPE VARPTHHPVS SITGQDFSAS
1381 TPKSSNPPKR KHVEESVLHE QRCGTECMRD DSCSGDSSAQ LSSGEHLLGP NRIMAYSRGQ
1441 TDMCRCSKRS SHRRSQSSLT ILocalizationUniProt · AlphaFold · HPA
Whether an antibody against ATP10B 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
- Other membrane
- Secreted
- No
- Transmembrane segments
- 10
- Mean surface accessibility (rSASA)
- 0.35
- Highest tissue expression
- 43 nTPM
Expression across tissuesHPA
Tissue
- rectum: 43 nTPM
- colon: 42 nTPM
- duodenum: 23 nTPM
- small intestine: 20 nTPM
- gallbladder: 16 nTPM
- epididymis: 12 nTPM
Single-cell type
- retinal pigment epithelial cells: 2,622 nCPM
- bergmann glia: 889 nCPM
- oligodendrocytes: 505 nCPM
- oligodendrocyte progenitor cells: 331 nCPM
- foveolar cells: 290 nCPM
- esophageal apical cells: 276 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: 37 nTPM
- medulla oblongata: 25 nTPM
- pons: 21 nTPM
- cerebellum: 20 nTPM
- basal ganglia: 20 nTPM
- thalamus: 18 nTPM
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)
- 1.02
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.09
- DepMap mean gene effect
- 0.05
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- phospholipid translocation
- lysosomal membrane organization
Molecular functions
- ATP binding
- ATP hydrolysis activity
- ATPase-coupled intramembrane lipid transporter activity
- glycosylceramide flippase activity
- magnesium ion binding
- phosphatidylcholine flippase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- P-type ATPase
- P-type ATPase, subfamily IV
- P-type ATPase, A domain superfamily
- P-type ATPase, phosphorylation site
- HAD superfamily
- P-type ATPase, transmembrane domain superfamily
- P-type ATPase, cytoplasmic domain N
- P-type ATPase, C-terminal
- P-type ATPase, N-terminal
- HAD-like superfamily
- P-type ATPase, haloacid dehalogenase domain
- P-type ATPase, cytoplasmic domain N
- Phospholipid-translocating ATPase N-terminal
- Phospholipid-translocating P-type ATPase C-terminal
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ATP10B 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 ATP10B as an antibody target. Whether an autoantibody or antibody against ATP10B could matter depends on whether native ATP10B is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ATP10B is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label ATP10B as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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