Affinage

CDC50A

Cell cycle control protein 50A · UniProt Q9NV96

Length
361 aa
Mass
40.7 kDa
Annotated
2026-06-09
36 papers in source corpus 22 papers cited in narrative 22 extracted findings
Cross-family judge vs UniProt: Affinage preferred faithfulness: 5/6 claims corpus-supported (83%)

Mechanistic narrative

Synthesis pass · prose summary of the discoveries below

CDC50A (TMEM30A) is the obligate β-subunit of type IV P-type ATPase (P4-ATPase) phospholipid flippases, partnering with multiple catalytic α-subunits to drive inward translocation of aminophospholipids across membranes and thereby control membrane lipid asymmetry across diverse cellular processes (PMID:21454556, PMID:23269685). It forms heteromeric complexes with P4-ATPases including ATP8A2, ATP8A1, ATP8B1, and ATP11C, and is required for their correct folding, stable expression, ER export, and trafficking to the plasma membrane; N-linked glycosylation of CDC50A and both its transmembrane and exocytoplasmic domains are needed for a functional complex (PMID:21454556, PMID:20510206, PMID:25239307). Beyond chaperoning, the extracellular domain of CDC50A directly activates the ATP hydrolysis-coupled flippase reaction, as separation-of-function mutations permit stable complex formation and membrane delivery yet abolish PtdSer/PtdEtn-dependent ATPase activity (PMID:29276178). Functionally, the CDC50A–ATP8A1 complex drives PE-dependent membrane ruffling and cell migration (PMID:23269685), and CDC50A-dependent flippase activity supports actin remodeling and RAC1 membrane targeting during myoblast fusion (PMID:34664668), neurite outgrowth with ATP8A2 (PMID:22641037), and retinal vascular development via VEGF signaling (PMID:30814335). Loss of CDC50A abolishes PS flippase activity and exposes phosphatidylserine on the cell surface, causing photoreceptor death (PMID:28839191), synapse over-pruning by microglia through the GPR56 pathway (PMID:34585770), and erythroid apoptosis through impaired EPOR membrane-raft localization and STAT5 signaling (PMID:30819915); the resulting surface PS also functions as an immune signal exploited in lymphoma, enhancing macrophage phagocytosis and anti-CD47 efficacy (PMID:32094924) while engaging the inhibitory NK-cell receptor TIM-3 to evade cytotoxicity (PMID:38557174). CDC50A additionally supports trans-Golgi vesicle budding for insulin secretory granule biogenesis and GLUT2 surface delivery (PMID:33895325) and is co-opted by enveloped viruses, whose PS-dependent assembly depends on the ATP11C–CDC50A flippase (PMID:40812423).

Mechanistic history

Synthesis pass · year-by-year structured walk · 19 steps
  1. 2011 High

    Established that CDC50A is the obligate β-subunit of a P4-ATPase, defining its core molecular identity as a chaperone/activator required for flippase folding and activity rather than an independent transporter.

    Evidence Mass spectrometry, Co-IP, domain-swap and glycosylation mutagenesis, and reconstituted lipid transport with ATP8A2 in HEK293T and native photoreceptor membranes

    PMID:21454556

    Open questions at the time
    • Stoichiometry and structure of the complex not resolved
    • Whether all P4-ATPase partners use identical interaction interfaces unknown
  2. 2011 High

    Confirmed functional orthology to yeast Lem3 and showed CDC50A-dependent uptake of choline/ethanolamine phospholipids, linking the flippase to lipid-drug import and apoptosis sensitivity.

    Evidence Yeast Δlem3 complementation, TMEM30A-GFP localization, shRNA knockdown, fluorescent and [³H]PAF lipid uptake assays

    PMID:21289302

    Open questions at the time
    • Did not identify the specific mammalian P4-ATPase partner mediating uptake
    • Direct vs indirect contribution to apoptosis not dissected
  3. 2010 Medium

    Showed that P4-ATPase co-expression re-routes CDC50A from ER/Golgi to the plasma membrane, demonstrating that subcellular localization and flippase function are coupled to partner availability.

    Evidence Confocal microscopy, cell-surface biotinylation, ATP8B1 co-expression, aminophospholipid and perifosine uptake assays in HeLa/HEK293T/KB cells

    PMID:20510206

    Open questions at the time
    • Mechanism of differential trafficking between cell types unresolved
    • Single lab
  4. 2012 High

    Defined a physiological role in cell migration by showing the CDC50A–ATP8A1 complex drives PE-specific translocation required for membrane ruffle formation.

    Evidence Co-IP, siRNA knockdown, fluorescent PS/PE translocation assays, PE-binding peptide and PE-synthesis-deficient mutant in CHO cells

    PMID:23269685

    Open questions at the time
    • Link between PE translocation and ruffle machinery not biochemically defined
    • Downstream cytoskeletal effectors not identified in this study
  5. 2012 Medium

    Extended CDC50A function to neuronal morphogenesis, showing synergy with ATP8A2 in NGF-induced neurite outgrowth.

    Evidence RT-PCR, overexpression, RNAi, neurite length measurement in PC12 cells and hippocampal neurons

    PMID:22641037

    Open questions at the time
    • No in vitro flippase reconstitution in this context
    • Molecular link between flippase activity and outgrowth not established
  6. 2012 Medium

    Characterized CDC50A as a terminally glycosylated glycoprotein with tissue-specific localizations (detergent-resistant membranes, secretory vesicles, apical tubule regions, TGN), grounding later trafficking and raft-dependent roles.

    Evidence Immunohistochemistry/immunofluorescence with validated antibodies and detergent-resistant membrane fractionation across multiple organs

    PMID:22253360

    Open questions at the time
    • No functional consequence tested in this study
    • Partner P4-ATPase identities per tissue not defined
  7. 2014 Medium

    Demonstrated that endogenous CDC50A–ATP8B1 supports apical surface delivery of the bile acid transporter ASBT, connecting the flippase to membrane cargo trafficking.

    Evidence Endogenous Co-IP, siRNA knockdown, apical biotinylation, bile salt uptake in Caco-2 cells

    PMID:25239307

    Open questions at the time
    • Whether flippase catalytic activity vs complex presence drives cargo delivery not separated
    • Single lab
  8. 2017 High

    Localized the flippase-activating function to the CDC50A extracellular domain, separating chaperone activity from direct activation of ATP hydrolysis-coupled translocation.

    Evidence Error-prone PCR mutagenesis with deep sequencing, stable complex assays, PtdSer-dependent ATPase and trafficking readouts with ATP11C

    PMID:29276178

    Open questions at the time
    • Structural basis for how the ECD activates catalysis unknown
    • Whether the same residues activate all partner P4-ATPases untested
  9. 2017 High

    Provided in vivo proof that CDC50A loss mislocalizes its partner ATP8A2, reduces PS flippase activity, exposes surface PS, and causes photoreceptor death.

    Evidence Retinal conditional knockout mice, immunofluorescence, ERG, MEF flippase assay, Annexin V, TUNEL

    PMID:28839191

    Open questions at the time
    • Causal chain from PS exposure to cell death not fully dissected
    • Cone-specific vulnerability not mechanistically explained
  10. 2018 Medium

    Linked CDC50A to membrane-raft-dependent cytokine signaling, showing it is required for EPOR raft localization and STAT5 activation during erythropoiesis.

    Evidence Vav-Cre conditional KO mice, EPOR raft confocal imaging, STAT5 phospho-Western, colony assays, human CD34+ knockdown

    PMID:30819915

    Open questions at the time
    • Whether lipid asymmetry directly organizes EPOR rafts not shown biochemically
    • Partner P4-ATPase in erythroid cells not identified
  11. 2018 Medium

    Identified a co-factor role for CDC50A in the Plasmodium guanylate cyclase β complex required for ookinete gliding, indicating flippase-associated functions extend to parasite motility signaling.

    Evidence Live imaging, genetic deletion/complementation, Co-IP, ISP1 interaction analysis in Plasmodium yoelii

    PMID:30146157

    Open questions at the time
    • Ortholog context (parasite) may differ from mammalian CDC50A
    • Whether flippase activity is required for GCβ function unknown
  12. 2018 Low

    Reported a TMEM30A–APP βCTF interaction in endosomes associated with altered APP trafficking and Aβ production.

    Evidence Co-IP, endosomal co-localization, overexpression/knockdown, Aβ ELISA

    PMID:30086173

    Open questions at the time
    • Single Co-IP/co-localization without reconstitution or mutagenesis to confirm direct interaction
    • Causality between interaction and Aβ production unestablished
  13. 2019 Medium

    Showed CDC50A is required for retinal angiogenesis through endothelial proliferation, barrier integrity, and VEGF signaling.

    Evidence siRNA tube formation, Cdh5-Cre conditional KO mice, flat-mount imaging, BrdU/EdU, VEGF signaling Western blotting

    PMID:30814335

    Open questions at the time
    • Mechanistic link between flippase activity and VEGF signaling not resolved
    • Single lab
  14. 2021 Medium

    Connected CDC50A-dependent flippase activity to actin/RAC1-driven myoblast fusion and showed partner redundancy beyond ATP11A.

    Evidence CRISPR KO of CDC50A and ATP11A in C2C12, lipid translocation assay, RAC1 membrane fractionation, actin staining, fusion assay

    PMID:34664668

    Open questions at the time
    • Identity of the fusion-relevant P4-ATPase partner(s) unknown
    • How lipid asymmetry directs RAC1 targeting not defined
  15. 2021 Medium

    Demonstrated activity-dependent synaptic localization of CDC50A and that its loss exposes synaptic PS triggering aberrant microglial pruning via GPR56.

    Evidence Immunofluorescence, Annexin V, knockdown, microglial phagocytosis assay, GPR56 epistasis in mouse

    PMID:34585770

    Open questions at the time
    • Signal controlling activity-dependent CDC50A localization unknown
    • Contribution of GPR56-independent pathways not quantified
  16. 2021 Medium

    Revealed a trans-Golgi role in vesicle budding for insulin secretory granule biogenesis and GLUT2 surface delivery in β-cells.

    Evidence β-cell conditional KO mice, EM of granules, insulin processing, GLUT2 fractionation, clathrin colocalization, glucose tolerance tests

    PMID:33895325

    Open questions at the time
    • Whether flippase lipid translocation directly drives clathrin budding not shown
    • Single lab
  17. 2020 Medium

    Identified TMEM30A as a recurrently mutated tumor suppressor in DLBCL whose loss exposes surface PS to enhance macrophage phagocytosis and anti-CD47 sensitivity while boosting BCR signaling.

    Evidence DLBCL genomic sequencing, KO cell lines/primary cells, drug accumulation, phagocytosis, in vivo anti-CD47 blockade, BCR signaling assays

    PMID:32094924

    Open questions at the time
    • Direct mechanism linking PS exposure to BCR signaling not dissected
    • Single study
  18. 2024 Medium

    Showed that TMEM30A loss-driven surface PS engages NK-cell TIM-3 to enable immune evasion, identifying a targetable PS–TIM-3 axis.

    Evidence Genome-wide CRISPR screen, TMEM30A KO, Annexin V, NK degranulation/cytotoxicity assays, TIM-3 blockade and CRISPR deletion in primary NK cells

    PMID:38557174

    Open questions at the time
    • Relative contribution of other PS receptors not quantified
    • Single lab
  19. 2025 Medium

    Demonstrated that enveloped virus (NDV) assembly exploits the ATP11C–CDC50A flippase, with CDC50A ECD mutations reducing PS redistribution and impairing PS-dependent matrix protein clustering and virion release.

    Evidence CRISPR KO of ATP11C, CDC50A D193G/K319E mutagenesis, PS flipping assay, NDV titer and VLP assays, M protein confocal imaging

    PMID:40812423

    Open questions at the time
    • Whether other P4-ATPase partners also support viral assembly untested
    • Single lab

Open questions

Synthesis pass · forward-looking unresolved questions
  • How CDC50A selects among its many P4-ATPase partners in a tissue-specific manner, and the structural basis by which its extracellular domain activates catalysis, remain unresolved.
  • No structure of the CDC50A–P4-ATPase complex in the corpus
  • Determinants of partner specificity across tissues uncharacterized
  • Whether non-flippase functions (e.g. metabolic, viral receptor) are direct or downstream of lipid asymmetry unresolved

Mechanism profile

Synthesis pass · controlled-vocabulary classification · explore literature graph →
Molecular activity
GO:0008289 lipid binding 3 GO:0098772 molecular function regulator activity 3 GO:0060090 molecular adaptor activity 2 GO:0140096 catalytic activity, acting on a protein 2
Localization
GO:0005886 plasma membrane 4 GO:0005783 endoplasmic reticulum 3 GO:0005794 Golgi apparatus 3 GO:0005768 endosome 2
Pathway
R-HSA-1430728 Metabolism 3 R-HSA-5357801 Programmed Cell Death 3 R-HSA-9609507 Protein localization 3 R-HSA-168256 Immune System 2 R-HSA-5653656 Vesicle-mediated transport 1
Partners
APPATP11AATP11CATP8A1ATP8A2ATP8B1GCΒSLC10A2
Complex memberships
CDC50A–ATP11C flippaseCDC50A–ATP8A1 flippaseCDC50A–ATP8B1 flippaseP4-ATPase flippase complex (CDC50A–ATP8A2)

Evidence

Reading pass · 22 per-paper findings extracted from the source corpus
Year Finding Method Journal Conf PMIDs
2011 CDC50A is the obligate β-subunit of the P4-ATPase ATP8A2; the two proteins form a heteromeric complex (confirmed by mass spectrometry and Western blotting from native photoreceptor membranes and HEK293T co-expression). CDC50A is required for correct folding, stable expression, ER export, and phosphatidylserine/phosphatidylethanolamine flippase activity of ATP8A2. Both the transmembrane and exocytoplasmic domains of CDC50A are required for a functional complex, the N-terminal cytoplasmic domain participates directly in the reaction cycle, and N-linked glycosylation of CDC50A is required for stable expression of an active complex. Mass spectrometry, Western blotting, co-immunoprecipitation, heterologous co-expression in HEK293T, chimera/domain-swap analysis, mutagenesis of glycosylation sites, reconstituted lipid transport assay The Journal of biological chemistry High 21454556
2012 CDC50A associates with P4-ATPase ATP8A1 and recruits it to the plasma membrane. In CHO cells, CDC50A is the sole CDC50 family member expressed. CDC50A overexpression induces cell spreading and enhances cell migration; depletion of CDC50A abolishes inward translocation of both phosphatidylserine (PS) and phosphatidylethanolamine (PE) at the plasma membrane, inhibits membrane ruffle formation, and severely impairs cell migration. Depletion of ATP8A1 specifically inhibits PE (but not PS) translocation, indicating that the CDC50A–ATP8A1 flippase complex drives PE-dependent ruffle formation for cell migration. Co-immunoprecipitation, siRNA knockdown, overexpression, fluorescent phospholipid translocation assay, confocal microscopy, cell migration assay, PE-binding peptide and PE-synthesis-deficient mutant cell line The Journal of biological chemistry High 23269685
2017 The extracellular domain of CDC50A is required both for chaperoning P4-ATPases (ATP11C and others) to the plasma membrane and for inducing ATP11C's ATP hydrolysis-coupled flippase activity. Error-prone PCR mutagenesis identified 14 evolutionarily conserved residues in the extracellular domain whose mutation either disrupts stable complex formation with ATP11C or, in one case, permits stable complex formation and membrane delivery yet abolishes PtdSer/PtdEtn-dependent ATPase activity. Error-prone PCR mutagenesis of CDC50A, functional screening, deep sequencing, stable complex formation assay, PtdSer-dependent ATPase activity assay, plasma membrane trafficking assay The Journal of biological chemistry High 29276178
2011 Human TMEM30A (CDC50A) functionally complements yeast Δlem3 for choline phospholipid import, confirming orthology. In mammalian cells, TMEM30A-GFP localizes to plasma membranes and internal organelles; ectopic TMEM30A expression promotes uptake of exogenous choline and ethanolamine phospholipids (including PAF and Edelfosine), and shRNA knockdown reduces fluorescent phospholipid and [³H]PAF import and reduces apoptosis in response to these lipids. Yeast complementation assay (Δlem3 rescue), TMEM30A-GFP localization by confocal microscopy, shRNA knockdown, fluorescent lipid uptake assay, [³H]PAF import assay, mitochondrial depolarization and apoptosis assays Journal of immunology High 21289302
2010 CDC50A localizes to the endoplasmic reticulum and Golgi in both sensitive and resistant KB cells, but additionally traffics to early/late endosomes and the plasma membrane only in perifosine-sensitive KB cells. Co-expression of CDC50A with P4-ATPase ATP8B1 re-routes CDC50A to the plasma membrane and dramatically increases aminophospholipid and perifosine uptake in HeLa and HEK293T cells that otherwise retain CDC50A in ER/Golgi. Confocal microscopy, cell-surface biotinylation, co-expression with ATP8B1, fluorescent aminophospholipid uptake assay, perifosine uptake assay, overexpression and knockdown Biochemical pharmacology Medium 20510206
2012 ATP8A2 and CDC50A act synergistically in neurite outgrowth: Atp8a2 mRNA is highly expressed in PC12 cells, hippocampal neurons, and brain; overexpression of ATP8A2 increases neurite length in NGF-stimulated PC12 cells and primary hippocampal neurons; RNAi-mediated CDC50A loss-of-function reduces neurite outgrowth in hippocampal neurons; co-overexpression of CDC50A and ATP8A2 enhances NGF-induced neurite outgrowth beyond either alone. RT-PCR expression analysis, plasmid overexpression, RNAi knockdown, neurite length measurement in PC12 cells and primary hippocampal neurons FEBS letters Medium 22641037
2014 Endogenous ATP8B1 forms a functional heterodimer with CDC50A in intestinal Caco-2 cells (confirmed by co-immunoprecipitation). Depletion of ATP8B1 impairs apical membrane insertion of SLC10A2 (ASBT bile acid transporter), reducing its surface localization and bile salt uptake. Co-immunoprecipitation of endogenous proteins, siRNA knockdown, apical membrane biotinylation, bile salt uptake assay Biochimica et biophysica acta Medium 25239307
2012 CDC50A is a terminally glycosylated glycoprotein that resides in detergent-resistant membranes of hepatocytes and liver sinusoidal endothelial cells; in pancreas and stomach it localizes to secretory vesicles; in kidney it localizes to the apical region of proximal convoluted tubules; in WIF-B9 cells it partially co-stains with the trans-Golgi network. These localizations were determined with validated anti-CDC50A antibodies. Immunohistochemistry/immunofluorescence with validated antibodies, detergent-resistant membrane fractionation, tissue-specific localization in multiple organs The journal of histochemistry and cytochemistry Medium 22253360
2017 Loss of Tmem30a in mouse cone photoreceptors causes mislocalization of ATP8A2 to the inner segment and cell body (instead of outer segment), diminished PS flippase activity, increased PS exposure on the cell surface, loss of photopic ERG responses, and cone cell death. In MEFs from Tmem30a-mutant mice, PS flippase activity is directly reduced. Retinal-specific conditional knockout mouse model, immunofluorescence (ATP8A2 localization), electroretinography, in vitro PS flippase activity assay in MEFs, cell surface PS exposure assay (Annexin V staining), TUNEL Scientific reports High 28839191
2018 CDC50A acts as a co-factor for the Plasmodium guanylate cyclase β (GCβ): CDC50A binds to and stabilizes GCβ during ookinete development. The GCβ/CDC50A complex is anchored at the ookinete extrados site (OES) by inner membrane complex protein ISP1, and this spatial polarization is required for initiation of ookinete gliding motility. Real-time live imaging of GCβ translocation, genetic deletion/complementation in Plasmodium yoelii, co-immunoprecipitation of GCβ and CDC50A, ISP1 interaction screen, domain deletion analysis Current biology Medium 30146157
2018 Deletion of Tmem30a in hematopoietic cells impairs erythropoietin receptor (EPOR) localization to membrane raft microdomains and reduces EPOR-mediated STAT5 pathway activation, thereby causing increased apoptosis of erythroid cells and severe anemia. TMEM30A knockdown in human CD34+ cells also impairs erythropoiesis. Vav-Cre conditional knockout mice, confocal microscopy of EPOR membrane raft localization, Western blotting of STAT5 phosphorylation, erythroid colony assay, TUNEL, shRNA knockdown in human CD34+ cells Haematologica Medium 30819915
2018 TMEM30A physically interacts with the β-carboxyl-terminal fragment (βCTF) of APP in endosomes, and this interaction is associated with endosomal enlargement, impaired APP/βCTF vesicular traffic, accumulation of APP-CTFs, and increased Aβ production in cells with expressed BACE1. Co-immunoprecipitation of TMEM30A and βCTF, confocal co-localization in endosomes, overexpression and knockdown approaches, ELISA for Aβ production PloS one Low 30086173
2019 TMEM30A knockdown in primary human retinal endothelial cells reduces tube formation; endothelial-specific Tmem30a deletion in mice causes retarded retinal vascular development with hyperpruned vascular network, impaired vessel barrier integrity, and reduced EC proliferation. Mechanistically, TMEM30A deletion reduces VEGF-induced signaling in endothelial cells. siRNA knockdown in human retinal endothelial cells (tube formation assay), Cdh5-Cre conditional knockout mice, retinal flat-mount imaging, BrdU/EdU proliferation assay, VEGF signaling Western blotting Journal of cell science Medium 30814335
2021 Murine CDC50A localizes to synapses in a neuronal-activity-dependent manner. Cdc50a knockdown causes PS exposure at synapses, which triggers erroneous synapse removal by microglia partly through the GPR56 pathway, leading to synapse loss. Immunofluorescence localization of CDC50A at synapses, Annexin V staining for PS exposure, Cdc50a knockdown, microglial phagocytosis assay, genetic epistasis with GPR56 pathway The EMBO journal Medium 34585770
2021 Deletion of CDC50A in mouse C2C12 myoblasts abolishes aminophospholipid flippase activity, impairs actin remodeling, prevents RAC1 GTPase membrane targeting, and blocks cell fusion into multinucleated myotubes. By contrast, deletion of the P4-ATPase ATP11A affects aminophospholipid uptake but does not strongly impair cell fusion, indicating that CDC50A-dependent flippases beyond ATP11A mediate fusion. CRISPR-Cas9 knockout of CDC50A and ATP11A in C2C12 cells, fluorescent aminophospholipid translocation assay, RAC1 membrane fractionation, actin staining, myoblast fusion assay Journal of cell science Medium 34664668
2021 Conditional knockout of Tmem30a in pancreatic β-cells impairs clathrin-mediated vesicle budding at the trans-Golgi network, blocking immature secretory granule (ISG) formation and insulin maturation, and also prevents transport of glucose transporter GLUT2 to the plasma membrane, resulting in hyperglycemia and defective glucose-stimulated insulin secretion. Pancreatic β-cell-specific conditional KO mice, electron microscopy of secretory granules, insulin processing assays, GLUT2 membrane fractionation, clathrin colocalization by immunofluorescence, glucose tolerance tests Molecular therapy Medium 33895325
2020 TMEM30A loss-of-function (biallelic mutations) in DLBCL cells increases accumulation of chemotherapy drugs in tumor cells, increases tumor-associated macrophages and enhances anti-CD47 blockade efficacy (due to increased PS surface exposure as 'eat-me' signal), and increases B-cell signaling following antigen stimulation—conferring selective advantage during lymphoma development. Genomic sequencing of DLBCL cohort, TMEM30A-knockout cell lines and primary cells, drug accumulation assay, macrophage phagocytosis assay, anti-CD47 blockade in vivo, B-cell receptor signaling assays Nature medicine Medium 32094924
2024 TMEM30A knockout leukemia/lymphoma cells show increased surface PS, which engages the inhibitory NK cell receptor TIM-3, reducing NK cell degranulation, cytokine production, and cytotoxicity. Blockade of PS or genetic disruption of TIM-3 in NK cells restores killing of TMEM30A-KO cells. Genome-wide CRISPR screen, TMEM30A KO in multiple cell lines, PS surface staining (Annexin V), NK cell degranulation and cytokine assays, TIM-3 blockade antibody, CRISPR deletion of TIM-3 in primary NK cells Proceedings of the National Academy of Sciences Medium 38557174
2025 CDC50A mutations D193G/K319E in the extracellular domain compromise ATP11c flippase activity, reducing PS redistribution by ~60%. NDV exploits the ATP11c-CDC50A complex: CRISPR-Cas9 ATP11c knockout reduces PS flipping efficiency and impairs NDV replication and progeny virion release. NDV-induced PS externalization enhances matrix (M) protein clustering at PS-rich membrane domains, increasing virus-like particle production. CRISPR-Cas9 KO of ATP11c, CDC50A site-directed mutagenesis (D193G/K319E), PS flipping assay, NDV replication/titer assay, virus-like particle production assay, confocal imaging of M protein clustering The Journal of biological chemistry Medium 40812423
2024 METTL3-mediated m6A methylation modification of TMEM30A positively regulates TMEM30A expression. Elevated TMEM30A in oral squamous cell carcinoma modulates cellular ATP and lactate metabolic balance. m6A methylation detection, METTL3 knockdown/overexpression, TMEM30A expression assays (RT-PCR, Western blot), ATP and lactate metabolic assays Life sciences Low 39389339
2024 TMEM30A is required for MNV (murine norovirus) replication: TMEM30A-deficient intestinal epithelial cells prevent persistent enteric MNV infection in vivo. Mechanistically, TMEM30A maintains a lipid-ordered membrane state that is necessary for low-affinity, high-avidity MNV binding and entry; exoplasmic PS (elevated upon TMEM30A loss) does not inhibit MNV infection. TMEM30A CRISPR KO in cell lines and mouse intestinal epithelial cells (conditional), MNV binding/entry assay, membrane fluidity/order measurements, in vivo infection model bioRxivpreprint Low bio_10.1101_2024.11.06.622376
2023 TMEM30A knockdown in mouse renal tubular epithelial cells (TCMK-1) reduces vesicle transporter protein synthesis, leading to reduced transport and surface expression of SGLT2 and consequently decreased glucose absorption. shRNA knockdown of TMEM30A in TCMK-1 cells, Western blotting of SGLT2, glucose uptake assay BMC nephrology Low 37612668

Source papers

Stage 0 corpus · 36 papers · ranked by NIH iCite citations
Year Title Journal Citations PMID
2011 Critical role of the beta-subunit CDC50A in the stable expression, assembly, subcellular localization, and lipid transport activity of the P4-ATPase ATP8A2. The Journal of biological chemistry 122 21454556
2012 Role for phospholipid flippase complex of ATP8A1 and CDC50A proteins in cell migration. The Journal of biological chemistry 76 23269685
2020 TMEM30A loss-of-function mutations drive lymphomagenesis and confer therapeutically exploitable vulnerability in B-cell lymphoma. Nature medicine 66 32094924
2004 Identification and characterization of CDC50A, CDC50B and CDC50C genes in silico. Oncology reports 56 15375526
2018 ISP1-Anchored Polarization of GCβ/CDC50A Complex Initiates Malaria Ookinete Gliding Motility. Current biology : CB 55 30146157
2017 The CDC50A extracellular domain is required for forming a functional complex with and chaperoning phospholipid flippases to the plasma membrane. The Journal of biological chemistry 46 29276178
2011 Human TMEM30a promotes uptake of antitumor and bioactive choline phospholipids into mammalian cells. Journal of immunology (Baltimore, Md. : 1950) 40 21289302
2021 Phospholipid-flippase chaperone CDC50A is required for synapse maintenance by regulating phosphatidylserine exposure. The EMBO journal 34 34585770
2014 The lipid flippase heterodimer ATP8B1-CDC50A is essential for surface expression of the apical sodium-dependent bile acid transporter (SLC10A2/ASBT) in intestinal Caco-2 cells. Biochimica et biophysica acta 34 25239307
2012 P4-ATPase ATP8A2 acts in synergy with CDC50A to enhance neurite outgrowth. FEBS letters 34 22641037
2018 Disruption of Tmem30a results in cerebellar ataxia and degeneration of Purkinje cells. Cell death & disease 27 30185775
2019 Tmem30a deficiency leads to retinal rod bipolar cell degeneration. Journal of neurochemistry 25 30548540
2017 Loss of Tmem30a leads to photoreceptor degeneration. Scientific reports 24 28839191
2018 Tmem30a Plays Critical Roles in Ensuring the Survival of Hematopoietic Cells and Leukemia Cells in Mice. The American journal of pathology 23 29574182
2012 Cellular localization and biochemical analysis of mammalian CDC50A, a glycosylated β-subunit for P4 ATPases. The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society 23 22253360
2010 CDC50A plays a key role in the uptake of the anticancer drug perifosine in human carcinoma cells. Biochemical pharmacology 23 20510206
2019 TMEM30A deficiency in endothelial cells impairs cell proliferation and angiogenesis. Journal of cell science 22 30814335
2021 The phosphatidylserine flippase β-subunit Tmem30a is essential for normal insulin maturation and secretion. Molecular therapy : the journal of the American Society of Gene Therapy 20 33895325
2017 Hepatic Tmem30a Deficiency Causes Intrahepatic Cholestasis by Impairing Expression and Localization of Bile Salt Transporters. The American journal of pathology 19 28919113
2021 CDC50A is required for aminophospholipid transport and cell fusion in mouse C2C12 myoblasts. Journal of cell science 12 34664668
2018 TMEM30A is a candidate interacting partner for the β-carboxyl-terminal fragment of amyloid-β precursor protein in endosomes. PloS one 12 30086173
2021 Loss of phosphatidylserine flippase β-subunit Tmem30a in podocytes leads to albuminuria and glomerulosclerosis. Disease models & mechanisms 11 34080006
2021 Deletion of phosphatidylserine flippase β-subunit Tmem30a in satellite cells leads to delayed skeletal muscle regeneration. Zoological research 11 34472226
2023 TMEM30A is essential for hair cell polarity maintenance in postnatal mouse cochlea. Cellular & molecular biology letters 9 36959542
2024 Deletion of the TMEM30A gene enables leukemic cell evasion of NK cell cytotoxicity. Proceedings of the National Academy of Sciences of the United States of America 8 38557174
2023 Physiological and Pathological Functions of TMEM30A: An Essential Subunit of P4-ATPase Phospholipid Flippases. Journal of lipids 8 37200892
2019 Deletion of a flippase subunit Tmem30a in hematopoietic cells impairs mouse fetal liver erythropoiesis. Haematologica 7 30819915
2024 Tmem30a protects against podocyte injury through suppression of pyroptosis. iScience 5 38868200
2022 CDC50A might be a novel biomarker of epithelial ovarian cancer-initiating cells. BMC cancer 5 35982417
2017 A biosystems approach to identify the molecular signaling mechanisms of TMEM30A during tumor migration. PloS one 5 28640862
2025 Mitigating Early Phosphatidylserine Exposure in a Tmem30a-Dependent Way Ameliorates Neuronal Damages After Ischemic Stroke. MedComm 2 40104262
2025 ANO6 Targets TMEM30A to Regulate Endoplasmic Reticulum Stress-Induced Lipid Peroxidation and Ferroptosis in Alzheimer's Cells. Cell biochemistry and biophysics 2 40221538
2024 The effect of m6A methyltransferase METTL3 mediated TMEM30A regulation on tumor energy metabolism and cisplatin anti-tumor activity in oral squamous cell carcinoma. Life sciences 2 39389339
2025 Newcastle disease virus exploits the phospholipid flippase ATP11c-CDC50A complex to promote viral infection. The Journal of biological chemistry 1 40812423
2023 Knockdown of TMEM30A in renal tubular epithelial cells leads to reduced glucose absorption. BMC nephrology 1 37612668
2025 Integration of metabolomics and transcriptomics reveals the mechanism of TMEM30A downregulation induced FSGS podocyte injury. American journal of physiology. Renal physiology 0 39907744

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