CBARP

gene
On this page

Also known as MGC40084DOSBARP

Summary

CBARP (CACN subunit beta associated regulatory protein, HGNC:28617) is a protein-coding gene on chromosome 19p13.3, encoding Voltage-dependent calcium channel beta subunit-associated regulatory protein (Q8N350). Negatively regulates voltage-gated calcium channels by preventing the interaction between their alpha and beta subunits.

Predicted to enable transmembrane transporter binding activity. Predicted to be involved in negative regulation of calcium ion-dependent exocytosis and negative regulation of voltage-gated calcium channel activity. Predicted to be located in growth cone and secretory granule. Predicted to be active in plasma membrane.

Source: NCBI Gene 255057 — RefSeq curated summary.

At a glance

  • Clinical variants (ClinVar): 43 total — 1 pathogenic
  • MANE Select transcript: NM_001393918

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:28617
Approved symbolCBARP
NameCACN subunit beta associated regulatory protein
Location19p13.3
Locus typegene with protein product
StatusApproved
AliasesMGC40084, DOS, BARP
Ensembl geneENSG00000099625
Ensembl biotypeprotein_coding
Entrez255057

Gene structure

Transcript identifiers

Ensembl transcripts: 11 — 7 protein_coding, 2 retained_intron, 2 nonsense_mediated_decay

ENST00000215376, ENST00000382477, ENST00000589260, ENST00000590083, ENST00000591127, ENST00000648750, ENST00000650044, ENST00000917007, ENST00000942888, ENST00000942889, ENST00000942890

RefSeq mRNA: 2 — MANE Select: NM_001393918 NM_001393918, NM_152769

CCDS: CCDS12057, CCDS92477

Canonical transcript exons

ENST00000650044 — 10 exons

ExonStartEnd
ENSE0000065144912341911234331
ENSE0000079512312345711234742
ENSE0000079512412350011235145
ENSE0000079512512357791235918
ENSE0000357504612334261233636
ENSE0000358831512311011231275
ENSE0000371286412355011235565
ENSE0000383260512282871230142
ENSE0000383934312359961236121
ENSE0000393047012377561238005

Expression profiles

Bgee: expression breadth ubiquitous, 182 present calls, max score 88.04.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 6.6995 / max 138.6809, expressed in 1439 samples.

FANTOM5 promoters (4 alternative TSS)

Promoter IDTPM avgSamples expressed
1780003.74991292
1779981.6465492
1779991.2019576
1779950.101255

Top tissues by expression

279 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
adenohypophysisUBERON:000219688.04gold quality
nucleus accumbensUBERON:000188286.51gold quality
pituitary glandUBERON:000000786.45gold quality
right frontal lobeUBERON:000281085.86gold quality
prefrontal cortexUBERON:000045184.97gold quality
caudate nucleusUBERON:000187384.77gold quality
cingulate cortexUBERON:000302783.51gold quality
putamenUBERON:000187483.40gold quality
anterior cingulate cortexUBERON:000983583.36gold quality
buccal mucosa cellCL:000233683.32silver quality
cortical plateUBERON:000534383.19gold quality
neocortexUBERON:000195082.22gold quality
frontal cortexUBERON:000187082.10gold quality
frontal lobeUBERON:001652582.07gold quality
ganglionic eminenceUBERON:000402382.03gold quality
amygdalaUBERON:000187681.07gold quality
spermCL:000001980.94silver quality
telencephalonUBERON:000189380.87gold quality
forebrainUBERON:000189080.79gold quality
dorsolateral prefrontal cortexUBERON:000983480.53gold quality
cerebral cortexUBERON:000095680.47gold quality
ventricular zoneUBERON:000305379.72gold quality
Ammon’s hornUBERON:000195479.53gold quality
brainUBERON:000095579.15gold quality
temporal lobeUBERON:000187178.96gold quality
central nervous systemUBERON:000101778.67gold quality
Brodmann (1909) area 9UBERON:001354078.63gold quality
stromal cell of endometriumCL:000225578.59gold quality
male germ cellCL:000001578.37silver quality
primary visual cortexUBERON:000243678.33gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 0.

ExperimentMarker?Max mean expression
E-ANND-3no1.22

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

20 targeting CBARP, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-444199.4966.563216
HSA-MIR-6722-3P99.4567.621919
HSA-MIR-19A-5P99.3666.931675
HSA-MIR-19B-1-5P99.3667.071669
HSA-MIR-19B-2-5P99.3667.071669
HSA-MIR-1909-3P99.0366.561662
HSA-MIR-6827-5P98.4664.881256
HSA-MIR-466097.7967.441328
HSA-MIR-3189-5P97.5566.71655
HSA-MIR-6787-5P97.5463.85457
HSA-MIR-191397.0766.201417
HSA-MIR-1288-3P96.8666.95536
HSA-MIR-1287-5P96.8065.30743
HSA-MIR-451595.7065.73716
HSA-MIR-10396B-5P94.9963.57358
HSA-MIR-1908-5P94.9963.41352
HSA-MIR-663A94.9963.54378
HSA-MIR-6727-5P92.4161.9883
HSA-MIR-425890.6862.19164
HSA-MIR-450890.3759.62240

Cross-species orthologs

3 orthologs

OrganismSymbolGene ID
danio_reriocbarpbENSDARG00000071325
mus_musculusCbarpENSMUSG00000035640
rattus_norvegicusCbarpENSRNOG00000024349

Protein

Protein identifiers

Voltage-dependent calcium channel beta subunit-associated regulatory proteinQ8N350 (reviewed: Q8N350)

All UniProt accessions (4): Q8N350, A0A140LJL2, A0A3B3IRU5, K7ELJ5

UniProt curated annotations — full annotation on UniProt →

Function. Negatively regulates voltage-gated calcium channels by preventing the interaction between their alpha and beta subunits. Thereby, negatively regulates calcium channels activity at the plasma membrane and indirectly inhibits calcium-regulated exocytosis.

Subunit / interactions. Interacts with voltage-dependent calcium channels CACNB1, CACNB2, CACNB3 and CACNB4 beta subunits; prevents their interaction with the CACNA1C alpha subunit thereby negatively regulating the activity of the corresponding calcium channels.

Subcellular location. Cytoplasmic vesicle. Secretory vesicle. Synaptic vesicle membrane. Cell membrane. Cell projection. Growth cone.

Isoforms (2)

UniProt IDNamesCanonical?
Q8N350-31yes
Q8N350-42

RefSeq proteins (2): NP_001380847, NP_689982 (=MANE)

Domains & families (InterPro)

IDNameType
IPR037658CBARPFamily

UniProt features (32 total): compositionally biased region 9, modified residue 8, region of interest 6, topological domain 2, splice variant 2, sequence conflict 2, chain 1, transmembrane region 1, glycosylation site 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q8N350-F152.230.05

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Post-translational modifications (8): 299, 304, 507, 528, 621, 698, 699, 703

Glycosylation sites (1): 29

Function

Pathways and Gene Ontology

Reactome pathways

0 pathways

MSigDB gene sets: 100 (showing top): MORF_RAGE, GOBP_NEGATIVE_REGULATION_OF_TRANSMEMBRANE_TRANSPORT, YAGI_AML_WITH_INV_16_TRANSLOCATION, GOBP_NEGATIVE_REGULATION_OF_TRANSPORTER_ACTIVITY, GOCC_SECRETORY_GRANULE, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_UP, GOBP_REGULATION_OF_EXOCYTOSIS, GOBP_NEGATIVE_REGULATION_OF_CALCIUM_ION_DEPENDENT_EXOCYTOSIS, GOBP_REGULATION_OF_VOLTAGE_GATED_CALCIUM_CHANNEL_ACTIVITY, GOBP_VESICLE_MEDIATED_TRANSPORT, GOBP_NEGATIVE_REGULATION_OF_EXOCYTOSIS, GOBP_NEGATIVE_REGULATION_OF_REGULATED_SECRETORY_PATHWAY, GOBP_MONOATOMIC_CATION_TRANSPORT, GOBP_REGULATION_OF_VESICLE_MEDIATED_TRANSPORT, GOBP_EXOCYTOSIS

GO Biological Process (3): negative regulation of calcium ion-dependent exocytosis (GO:0045955), negative regulation of voltage-gated calcium channel activity (GO:1901386), negative regulation of calcium ion transmembrane transport (GO:1903170)

GO Molecular Function (2): transmembrane transporter binding (GO:0044325), protein binding (GO:0005515)

GO Cellular Component (8): plasma membrane (GO:0005886), secretory granule (GO:0030141), growth cone (GO:0030426), synaptic vesicle membrane (GO:0030672), membrane (GO:0016020), cytoplasmic vesicle (GO:0031410), cell projection (GO:0042995), synapse (GO:0045202)

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure2
calcium-ion regulated exocytosis1
regulation of calcium ion-dependent exocytosis1
negative regulation of regulated secretory pathway1
voltage-gated calcium channel activity1
negative regulation of calcium ion transmembrane transporter activity1
regulation of voltage-gated calcium channel activity1
negative regulation of calcium ion transport1
calcium ion transmembrane transport1
regulation of calcium ion transmembrane transport1
negative regulation of cation transmembrane transport1
protein binding1
binding1
membrane1
cell periphery1
endomembrane system1
secretory vesicle1
site of polarized growth1
distal axon1
synaptic vesicle1
exocytic vesicle membrane1
cytoplasm1
intracellular vesicle1
cell junction1

Protein interactions and networks

STRING

374 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
CBARPFAM174CQ9BVV8544
CBARPCLRN3Q8NCR9491
CBARPFSIP2Q5CZC0456
CBARPCRABP2P29373419
CBARPGHITMQ9H3K2415
CBARPSBNO2Q9Y2G9396
CBARPC19orf25Q9UFG5395
CBARPR3HDM4Q96D70393
CBARPRMDN2Q96LZ7379
CBARPANKMY1Q9P2S6370
CBARPQRICH2Q9H0J4368
CBARPMAF1Q9H063367
CBARPH7C0V5H7C0V5349
CBARPCIMAP1DQ3SX64316
CBARPNR1I3Q14994316

IntAct

51 interactions, top by confidence:

ABTypeScore
PPP1CCCCDC85Cpsi-mi:“MI:0914”(association)0.740
CACNB1CACNB3psi-mi:“MI:0914”(association)0.640
YWHAHPLEKHG3psi-mi:“MI:0914”(association)0.610
STARD3CBARPpsi-mi:“MI:0915”(physical association)0.590
YWHAQIGLC7psi-mi:“MI:0914”(association)0.530
CACNB3CACNB4psi-mi:“MI:0914”(association)0.530
CACNB3CACNB2psi-mi:“MI:0914”(association)0.530
YWHABPLEKHG3psi-mi:“MI:0914”(association)0.480
YWHAQPLEKHG3psi-mi:“MI:0914”(association)0.480
CBARPPKMpsi-mi:“MI:0217”(phosphorylation reaction)0.440
PPP1CCCCDC85Cpsi-mi:“MI:0914”(association)0.350
FADS3DHX16psi-mi:“MI:0914”(association)0.350
CACNB3PLCG1psi-mi:“MI:0914”(association)0.350
TMC6PXKpsi-mi:“MI:0914”(association)0.350
YWHABPLEKHG3psi-mi:“MI:0914”(association)0.350
YWHAGC1orf226psi-mi:“MI:0914”(association)0.350
YWHAZSPEGpsi-mi:“MI:0914”(association)0.350
CACNA1CIGLL5psi-mi:“MI:0914”(association)0.350
HCN1POTEFpsi-mi:“MI:0914”(association)0.350
YWHABFOXO6psi-mi:“MI:0914”(association)0.350
YWHAGFOXO6psi-mi:“MI:0914”(association)0.350
YWHAQFOXO6psi-mi:“MI:0914”(association)0.350
YWHAHFOXO6psi-mi:“MI:0914”(association)0.350
YWHAZHECTD4psi-mi:“MI:0914”(association)0.350
CBARPBIN1psi-mi:“MI:0914”(association)0.350
FADS3PEX7psi-mi:“MI:0914”(association)0.350
CEP55SRCpsi-mi:“MI:0914”(association)0.350

BioGRID (98): C19orf26 (Affinity Capture-MS), C19orf26 (Proximity Label-MS), C19orf26 (Proximity Label-MS), C19orf26 (Affinity Capture-MS), C19orf26 (Affinity Capture-MS), C19orf26 (Affinity Capture-MS), C19orf26 (Affinity Capture-MS), C19orf26 (Affinity Capture-MS), C19orf26 (Affinity Capture-MS), C19orf26 (Proximity Label-MS), C19orf26 (Proximity Label-MS), C19orf26 (Proximity Label-MS), C19orf26 (Two-hybrid), C19orf26 (Two-hybrid), C19orf26 (Two-hybrid)

ESM2 similar proteins: A2A699, A2A9T0, A2AEV7, A2AJA9, A6NKL6, A6NL88, A7MCY6, A8MVW0, C9J069, E9PZZ1, J3QNX5, O14492, O14511, O15169, O35615, O43541, O94983, P0C7U0, Q02779, Q03484, Q148V8, Q3SX20, Q5BJT1, Q5JTD0, Q5JU85, Q63HR2, Q66H43, Q66L44, Q69YU3, Q6DG50, Q6PDH0, Q6R6L0, Q6ZRV2, Q75VX8, Q7TN12, Q80VC9, Q80Y50, Q86UU1, Q8C3Q5, Q8C8T7

Diamond homologs: Q66L44, Q8N350

SIGNOR signaling

0 interactions.

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 51 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
Activation of BAD and translocation to mitochondria7144.0×3e-12
Chk1/Chk2(Cds1) mediated inactivation of Cyclin B:Cdk1 complex7127.1×4e-12
SARS-CoV-1 targets host intracellular signalling and regulatory pathways7127.1×4e-12
Activation of BH3-only proteins793.9×4e-11
RHO GTPases activate PKNs760.0×9e-10
Intrinsic Pathway for Apoptosis755.4×1e-09
FOXO-mediated transcription545.4×1e-06
NCAM signaling for neurite out-growth644.1×1e-07

GO biological processes:

GO termPartnersFoldFDR
regulation of heart rate by cardiac conduction755.8×1e-08
protein targeting539.0×4e-05
intracellular protein localization715.6×4e-05

Disease & clinical

Clinical variants and AI predictions

ClinVar

43 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic1
Likely pathogenic0
Uncertain significance33
Likely benign5
Benign0

Top pathogenic / likely-pathogenic (1)

Variant IDHGVSClassification
60067GRCh38/hg38 19p13.3(chr19:1156372-1228333)x1Pathogenic

SpliceAI

1691 predictions. Top by Δscore:

VariantEffectΔscore
19:1231276:CTGC:Cacceptor_loss1.0000
19:1234201:T:TAdonor_gain1.0000
19:1234202:C:Adonor_gain1.0000
19:1234566:CTCA:Cdonor_loss1.0000
19:1234567:TCACC:Tdonor_loss1.0000
19:1234568:CACC:Cdonor_loss1.0000
19:1234741:ACCTG:Aacceptor_loss1.0000
19:1234743:CTG:Cacceptor_loss1.0000
19:1234744:T:Gacceptor_loss1.0000
19:1234995:GCTTA:Gdonor_loss1.0000
19:1234998:TACC:Tdonor_loss1.0000
19:1234999:A:ACdonor_gain1.0000
19:1235000:C:CAdonor_gain1.0000
19:1235915:CTGC:Cacceptor_gain1.0000
19:1235916:TGC:Tacceptor_gain1.0000
19:1235917:GC:Gacceptor_gain1.0000
19:1235918:CC:Cacceptor_gain1.0000
19:1235919:C:CCacceptor_gain1.0000
19:1235923:G:Tacceptor_gain1.0000
19:1236005:T:TAdonor_gain1.0000
19:1236122:CT:Cacceptor_loss1.0000
19:1231180:A:ACdonor_gain0.9900
19:1231181:C:CCdonor_gain0.9900
19:1231276:C:CCacceptor_gain0.9900
19:1233035:C:Tacceptor_gain0.9900
19:1233421:CTCA:Cdonor_loss0.9900
19:1233422:TCA:Tdonor_loss0.9900
19:1233423:CACCT:Cdonor_loss0.9900
19:1233425:C:CGdonor_loss0.9900
19:1233425:CCT:Cdonor_gain0.9900

AlphaMissense

4516 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
19:1234710:A:GL163P0.999
19:1234718:G:CF160L0.999
19:1234718:G:TF160L0.999
19:1234719:A:CF160C0.999
19:1234719:A:GF160S0.999
19:1234720:A:GF160L0.999
19:1234706:C:AK164N0.998
19:1234706:C:GK164N0.998
19:1234734:A:GL155P0.998
19:1229638:G:CF553L0.997
19:1229638:G:TF553L0.997
19:1229640:A:GF553L0.997
19:1229788:A:CS503R0.997
19:1229788:A:TS503R0.997
19:1229790:T:GS503R0.997
19:1229792:T:AD502V0.997
19:1229794:C:AM501I0.997
19:1229794:C:GM501I0.997
19:1229794:C:TM501I0.997
19:1229985:A:GW438R0.997
19:1229985:A:TW438R0.997
19:1233439:A:CS322R0.997
19:1233439:A:TS322R0.997
19:1233441:T:GS322R0.997
19:1234722:T:CD159G0.997
19:1229639:A:GF553S0.996
19:1229776:G:CS507R0.996
19:1229776:G:TS507R0.996
19:1229778:T:GS507R0.996
19:1229784:A:GY505H0.996

dbSNP variants (sampled 300 via entrez): RS1000315192 (19:1239080 A>C), RS1000358125 (19:1231757 C>T), RS1000418666 (19:1233882 G>A,C), RS1000420642 (19:1235322 C>A,G,T), RS1000505074 (19:1237165 G>A,C), RS1000533316 (19:1238151 G>A,C), RS1000599570 (19:1236675 C>T), RS1000758309 (19:1234522 G>A), RS1001025438 (19:1232992 C>A,T), RS1001561230 (19:1232791 C>G,T), RS1001634165 (19:1230833 C>G,T), RS1001742962 (19:1228067 T>C), RS1001807842 (19:1233179 G>A,C), RS1001854927 (19:1230164 C>CA), RS1001923681 (19:1237634 C>A,T)

Disease associations

OMIM: gene `` | disease phenotypes: MIM:175200

GenCC curated gene-disease

Mondo (1): Peutz-Jeghers syndrome (MONDO:0008280)

Orphanet (1): Peutz-Jeghers syndrome (Orphanet:2869)

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

0 associations (top):

MeSH disease descriptors (1)

DescriptorNameTree numbers
D010580Peutz-Jeghers SyndromeC04.700.633; C06.405.469.578.750; C16.320.700.667; C17.800.621.430.530.550.625

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

PharmGKB variants

1 variants.

VariantGenesLevelScore#Clin annotsDrugs
rs2301759CBARP0.000

CTD chemical–gene interactions

30 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
Air Pollutantsincreases abundance, increases expression2
Tobacco Smoke Pollutiondecreases methylation, increases expression2
Particulate Matterincreases abundance, increases expression2
FR900359increases phosphorylation1
dicrotophosincreases expression1
methyleugenoldecreases expression1
bisphenol Aaffects cotreatment, increases expression1
beta-lapachoneincreases expression1
sodium arseniteincreases expression1
perfluorooctanoic acidincreases expression1
coumarindecreases phosphorylation1
abrineincreases expression1
licochalcone Bincreases expression1
Resveratrolaffects cotreatment, decreases expression1
Sunitinibincreases expression1
Allergensincreases expression1
Benzo(a)pyreneincreases methylation1
Cadmiumdecreases expression, increases abundance1
Caffeineaffects phosphorylation1
Cisplatindecreases expression1
Dexamethasoneaffects cotreatment, increases expression1
Estradiolincreases expression1
Indomethacinaffects cotreatment, increases expression1
Plant Extractsaffects cotreatment, decreases expression1
Urethaneincreases expression1
Valproic Acidincreases methylation1
1-Methyl-3-isobutylxanthineaffects cotreatment, increases expression1
Cyclosporinedecreases methylation1
Cadmium Chloridedecreases expression, increases abundance1
Okadaic Acidincreases expression1

Clinical trials (associated diseases)

16 trials via MONDO — disease-level, not drug-specific.

TrialPhaseStatusTitle
NCT03781050PHASE4UNKNOWNEfficacy of Rapamycin (Sirolimus) in the Treatment of Peutz-Jeghers Syndrome
NCT06001476PHASE4UNKNOWNCold Snare Polypectomy for Small Bowel Polyps in Patients With Peutz-Jeghers Syndrome
NCT02000089PHASE3RECRUITINGThe Cancer of the Pancreas Screening-5 CAPS5)Study
NCT00811590PHASE2TERMINATEDPilot Study of mTOR Inhibitor Therapy in Peutz-Jeghers Syndrome
NCT01178151PHASE2WITHDRAWNStudy of Everolimus in the Treatment of Advanced Malignancies in Patients With Peutz-Jeghers Syndrome
NCT00001452Not specifiedCOMPLETEDDefining the Genetic Basis for the Development of Primary Pigmented Nodular Adrenocortical Disease (PPNAD) and the Carney Complex
NCT00438906Not specifiedCOMPLETEDCancer of the Pancreas Screening Study (CAPS 3)
NCT00633607Not specifiedCOMPLETEDHereditary Colorectal and Associated Tumor Registry Study
NCT02206360Not specifiedACTIVE_NOT_RECRUITINGPancreatic Cancer Early Detection Program
NCT03050268Not specifiedRECRUITINGFamilial Investigations of Childhood Cancer Predisposition
NCT03806075Not specifiedUNKNOWNStudy of Accurate Diagnosis and Treatment of Peutz-Jeghers Syndrome
NCT04095195Not specifiedRECRUITINGRegistry of Subjects at Risk of Pancreatic Cancer
NCT05692596Not specifiedACTIVE_NOT_RECRUITINGThe Pancreas Interception Center (PIC) for Early Detection, Prevention, and Novel Therapeutics
NCT06163365Not specifiedUNKNOWNInherited Cancer Early Diagnosis (ICED) Study
NCT06242457Not specifiedCOMPLETEDPoorly Differentiated Adenocarcinoma of the Jejunum in a Patient With Peutz-Jeghers Syndrome: A Case Report
NCT06722534Not specifiedRECRUITINGCelecoxib for Prevention of Progression in Peutz-Jeghers Syndrome
  • Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): Peutz-Jeghers syndrome