NAPG

gene
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Summary

NAPG (NSF attachment protein gamma, HGNC:7642) is a protein-coding gene on chromosome 18p11.22, encoding Gamma-soluble NSF attachment protein (Q99747). Required for vesicular transport between the endoplasmic reticulum and the Golgi apparatus. It is a selective cancer dependency (DepMap: 66.6% of cell lines).

This gene encodes soluble NSF attachment protein gamma. The soluble NSF attachment proteins (SNAPs) enable N-ethyl-maleimide-sensitive fusion protein (NSF) to bind to target membranes. NSF and SNAPs appear to be general components of the intracellular membrane fusion apparatus, and their action at specific sites of fusion must be controlled by SNAP receptors particular to the membranes being fused. The product of this gene mediates platelet exocytosis and controls the membrane fusion events of this process.

Source: NCBI Gene 8774 — RefSeq curated summary.

At a glance

  • GWAS associations: 5
  • Clinical variants (ClinVar): 56 total — 2 pathogenic
  • Cancer dependency (DepMap): dependent in 66.6% of screened cell lines
  • MANE Select transcript: NM_003826

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:7642
Approved symbolNAPG
NameNSF attachment protein gamma
Location18p11.22
Locus typegene with protein product
StatusApproved
Ensembl geneENSG00000134265
Ensembl biotypeprotein_coding
OMIM603216
Entrez8774

Gene structure

Transcript identifiers

Ensembl transcripts: 11 — 6 protein_coding, 3 retained_intron, 2 nonsense_mediated_decay

ENST00000322897, ENST00000580224, ENST00000580483, ENST00000580746, ENST00000582472, ENST00000582978, ENST00000583367, ENST00000945386, ENST00000945387, ENST00000945388, ENST00000945389

RefSeq mRNA: 1 — MANE Select: NM_003826 NM_003826

CCDS: CCDS45827

Canonical transcript exons

ENST00000322897 — 12 exons

ExonStartEnd
ENSE000027053501052602710526158
ENSE000027322671055007710552764
ENSE000035047831053353610533553
ENSE000035131921054632610546404
ENSE000035290681054032910540399
ENSE000035329621053998810540054
ENSE000035356651053271110532795
ENSE000035796841053446610534496
ENSE000036060111054896710549096
ENSE000036599941054829910548378
ENSE000036623731053077010530837
ENSE000037251021053976210539871

Expression profiles

Bgee: expression breadth ubiquitous, 277 present calls, max score 96.41.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 24.2207 / max 961.6922, expressed in 1812 samples.

FANTOM5 promoters (4 alternative TSS)

Promoter IDTPM avgSamples expressed
16941811.61361757
16941710.64691766
1694141.5594858
1694200.4008154

Top tissues by expression

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

TissueAnatomy IDExpression scoreQuality
endothelial cellCL:000011596.41gold quality
ponsUBERON:000098896.32gold quality
adrenal tissueUBERON:001830392.52gold quality
substantia nigra pars compactaUBERON:000196592.22gold quality
Brodmann (1909) area 23UBERON:001355492.01gold quality
islet of LangerhansUBERON:000000691.86gold quality
C1 segment of cervical spinal cordUBERON:000646991.59gold quality
lateral nuclear group of thalamusUBERON:000273691.57gold quality
middle temporal gyrusUBERON:000277191.47gold quality
dorsolateral prefrontal cortexUBERON:000983491.38gold quality
Brodmann (1909) area 9UBERON:001354091.21gold quality
prefrontal cortexUBERON:000045191.00gold quality
calcaneal tendonUBERON:000370190.65gold quality
substantia nigra pars reticulataUBERON:000196690.53gold quality
spinal cordUBERON:000224090.45gold quality
superior vestibular nucleusUBERON:000722790.14gold quality
Ammon’s hornUBERON:000195489.90gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047389.83gold quality
right frontal lobeUBERON:000281089.79gold quality
nucleus accumbensUBERON:000188289.78gold quality
primary visual cortexUBERON:000243689.77gold quality
cingulate cortexUBERON:000302789.77gold quality
anterior cingulate cortexUBERON:000983589.60gold quality
superior frontal gyrusUBERON:000266189.53gold quality
parietal lobeUBERON:000187289.48gold quality
cerebral cortexUBERON:000095689.36gold quality
postcentral gyrusUBERON:000258189.25gold quality
cerebellar hemisphereUBERON:000224589.15gold quality
corpus callosumUBERON:000233689.14gold quality
cerebellar cortexUBERON:000212989.11gold quality

Single-cell (SCXA)

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

ExperimentMarker?Max mean expression
E-ANND-3yes9.72

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

128 targeting NAPG, 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-1277-5P100.0073.955056
HSA-MIR-450A-1-3P100.0069.331837
HSA-MIR-4425100.0067.591049
HSA-MIR-30A-5P100.0076.313233
HSA-MIR-30B-5P100.0076.293248
HSA-MIR-30C-5P100.0076.293248
HSA-MIR-30D-5P100.0076.323233
HSA-MIR-30E-5P100.0076.323242
HSA-MIR-5692A100.0074.406850
HSA-MIR-126-5P100.0072.713180
HSA-MIR-3613-3P100.0076.367965
HSA-MIR-3924100.0072.092394
HSA-MIR-3646100.0073.565283
HSA-MIR-5692B100.0071.322622
HSA-MIR-5692C100.0071.322622
HSA-MIR-513A-5P100.0069.772465
HSA-MIR-3163100.0077.238605
HSA-MIR-656-3P100.0072.152788
HSA-MIR-366299.9973.825684
HSA-MIR-428299.9975.366408
HSA-MIR-56899.9869.862084
HSA-MIR-548P99.9872.253784
HSA-MIR-314899.9775.066478
HSA-MIR-3065-5P99.9771.563281
HSA-MIR-50799.9770.111915
HSA-MIR-3688-3P99.9772.022834
HSA-MIR-495-3P99.9672.814197
HSA-MIR-568899.9673.234504
HSA-MIR-548AJ-3P99.9673.385345
HSA-MIR-548X-3P99.9673.385345

Functional genomics

DepMap (CRISPR cell-line fitness): dependent in 66.6% of screened cell lines.

Literature-anchored findings (GeneRIF, showing 4)

  • The functional domains of this protein are mapped. (PMID:12554740)
  • Our study supports NAPG as a candidate for susceptibility to bipolar disorder as several combinations of haplotype were found to be associated with bipolar disorder. (PMID:19429185)
  • study did not support NAPG as a susceptible gene for schizophrenia in the Chinese Han population (PMID:22113424)
  • NAPG mutation in family members with hereditary hemorrhagic telangiectasia in China. (PMID:34112136)

Cross-species orthologs

8 orthologs

OrganismSymbolGene ID
danio_rerionapgaENSDARG00000006617
danio_rerionapgbENSDARG00000043012
mus_musculusNapgENSMUSG00000024581
rattus_norvegicusNapgENSRNOG00000018914
drosophila_melanogastergammaSnap1FBGN0028552
drosophila_melanogastergammaSnap2FBGN0266721
caenorhabditis_elegansWBGENE00013345
caenorhabditis_elegansWBGENE00044794

Paralogs (2): NAPA (ENSG00000105402), NAPB (ENSG00000125814)

Protein

Protein identifiers

Gamma-soluble NSF attachment proteinQ99747 (reviewed: Q99747)

Alternative names: N-ethylmaleimide-sensitive factor attachment protein gamma

All UniProt accessions (5): Q99747, J3KTJ6, J3QKW4, J3QS28, Q6FHY4

UniProt curated annotations — full annotation on UniProt →

Function. Required for vesicular transport between the endoplasmic reticulum and the Golgi apparatus.

Subunit / interactions. Interacts with RAB11FIP5. Interacts with VTI1A.

Subcellular location. Membrane. Golgi apparatus.

Similarity. Belongs to the SNAP family.

Isoforms (2)

UniProt IDNamesCanonical?
Q99747-11yes
Q99747-22

RefSeq proteins (1): NP_003817* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR000744NSF_attachFamily
IPR011990TPR-like_helical_dom_sfHomologous_superfamily

Pfam: PF14938

UniProt features (10 total): modified residue 3, sequence variant 2, chain 1, region of interest 1, compositionally biased region 1, splice variant 1, sequence conflict 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q99747-F191.670.87

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 (3): 284, 287, 308

Function

Pathways and Gene Ontology

Reactome pathways

14 pathways

IDPathway
R-HSA-204005COPII-mediated vesicle transport
R-HSA-6807878COPI-mediated anterograde transport
R-HSA-6811434COPI-dependent Golgi-to-ER retrograde traffic
R-HSA-6811438Intra-Golgi traffic
R-HSA-6811440Retrograde transport at the Trans-Golgi-Network
R-HSA-199977ER to Golgi Anterograde Transport
R-HSA-199991Membrane Trafficking
R-HSA-392499Metabolism of proteins
R-HSA-446203Asparagine N-linked glycosylation
R-HSA-5653656Vesicle-mediated transport
R-HSA-597592Post-translational protein modification
R-HSA-6811442Intra-Golgi and retrograde Golgi-to-ER traffic
R-HSA-8856688Golgi-to-ER retrograde transport
R-HSA-948021Transport to the Golgi and subsequent modification

MSigDB gene sets: 0 (showing top):

GO Biological Process (7): intracellular protein transport (GO:0006886), intra-Golgi vesicle-mediated transport (GO:0006891), protein stabilization (GO:0050821), membrane fusion (GO:0061025), protein-containing complex assembly (GO:0065003), protein transport (GO:0015031), vesicle-mediated transport (GO:0016192)

GO Molecular Function (3): soluble NSF attachment protein activity (GO:0005483), syntaxin binding (GO:0019905), protein binding (GO:0005515)

GO Cellular Component (6): mitochondrion (GO:0005739), lysosomal membrane (GO:0005765), Golgi apparatus (GO:0005794), SNARE complex (GO:0031201), extracellular exosome (GO:0070062), membrane (GO:0016020)

Reactome top-level categories

Rollup of top-9 pathways:

CategoryPathways
Intra-Golgi and retrograde Golgi-to-ER traffic3
ER to Golgi Anterograde Transport2
Membrane Trafficking2
Golgi-to-ER retrograde transport1
Transport to the Golgi and subsequent modification1
Vesicle-mediated transport1
Post-translational protein modification1
Metabolism of proteins1
Asparagine N-linked glycosylation1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cytoplasm3
intracellular protein localization2
transport2
intracellular membrane-bounded organelle2
protein transport1
intracellular transport1
Golgi vesicle transport1
regulation of protein stability1
membrane organization1
cellular component assembly1
protein-containing complex organization1
establishment of protein localization1
cellular process1
protein-macromolecule adaptor activity1
SNARE binding1
binding1
lysosome1
lytic vacuole membrane1
endomembrane system1
membrane protein complex1
extracellular vesicle1
cellular anatomical structure1

Protein interactions and networks

STRING

1070 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
NAPGNAPAP54920974
NAPGNSFP46459828
NAPGSTX2P32856796
NAPGSTX4Q12846713
NAPGGNA12Q03113641
NAPGGOSR1O95249597
NAPGSTX16O14662551
NAPGCDH5P33151549
NAPGNAPBQ9H115532
NAPGVAMP2P19065510
NAPGSTXBP1P61764490
NAPGSNAP25P13795489
NAPGSTX12Q86Y82483
NAPGLZICQ8WZA0468
NAPGVAMP3Q15836460

IntAct

107 interactions, top by confidence:

ABTypeScore
STX11SNAP23psi-mi:“MI:0914”(association)0.900
STX18NBASpsi-mi:“MI:0914”(association)0.810
VPS25VPS36psi-mi:“MI:0914”(association)0.800
NAPASNAP23psi-mi:“MI:0914”(association)0.780
NAPGNSFpsi-mi:“MI:0914”(association)0.640
STX7SNAP23psi-mi:“MI:0914”(association)0.640
STX12SNAP23psi-mi:“MI:0914”(association)0.640
NAPANBASpsi-mi:“MI:0914”(association)0.530
FAM177A1SLC27A2psi-mi:“MI:0914”(association)0.530
PIPOXZNF217psi-mi:“MI:0914”(association)0.530
PRPSAP2CCNB1psi-mi:“MI:0914”(association)0.530
VAMP5NBASpsi-mi:“MI:0914”(association)0.530
NUFIP1PDE2Apsi-mi:“MI:0914”(association)0.530
CPNE5RAD21psi-mi:“MI:0914”(association)0.530
STX3NBASpsi-mi:“MI:0914”(association)0.530
FAIMWDR47psi-mi:“MI:0914”(association)0.500
BET1SNAP23psi-mi:“MI:0914”(association)0.420
NAPGpsi-mi:“MI:0915”(physical association)0.370
Kif13bTCF3psi-mi:“MI:0914”(association)0.350
Tecpr2PUF60psi-mi:“MI:0914”(association)0.350
PLEKHA7PLEKHG3psi-mi:“MI:0914”(association)0.350
VAMP5ESYT2psi-mi:“MI:0914”(association)0.350
STX6NBASpsi-mi:“MI:0914”(association)0.350
VAMP4NBASpsi-mi:“MI:0914”(association)0.350

BioGRID (150): RAB11FIP5 (Reconstituted Complex), RAB11FIP5 (Two-hybrid), NAPG (Affinity Capture-Western), Rab11fip5 (Reconstituted Complex), TUBG1 (Reconstituted Complex), NAPG (Affinity Capture-MS), NAPG (Affinity Capture-MS), NAPG (Affinity Capture-MS), NAPG (Affinity Capture-MS), AKAP11 (Affinity Capture-MS), NAPA (Affinity Capture-MS), SCFD2 (Affinity Capture-MS), PRKACB (Affinity Capture-MS), PRKAR1B (Affinity Capture-MS), VAMP4 (Affinity Capture-MS)

ESM2 similar proteins: A1Z6M6, A8XHX1, O16259, O35814, O54981, P0C1I1, P15705, P23231, P26882, P31948, P32602, P34560, P78603, P81127, Q05036, Q08752, Q20683, Q20938, Q2U0E0, Q3ZBZ8, Q4P7J4, Q4R8N7, Q54DA8, Q54IP0, Q54NP6, Q5B3U7, Q5R8D8, Q60864, Q6BLG8, Q6BXZ7, Q6CBP4, Q6CFI3, Q6CFJ0, Q6CL78, Q6DGG0, Q75D68, Q7SI58, Q7ZWU1, Q8ILC1, Q8VWG7

Diamond homologs: P81127, Q99747, Q9CWZ7

SIGNOR signaling

0 interactions.

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 97 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
Intra-Golgi traffic729.3×1e-06
Retrograde transport at the Trans-Golgi-Network621.2×5e-05
COPII-mediated vesicle transport513.2×2e-03
COPI-dependent Golgi-to-ER retrograde traffic712.5×1e-04
COPI-mediated anterograde transport712.4×1e-04
Intra-Golgi and retrograde Golgi-to-ER traffic711.8×1e-04
Golgi-to-ER retrograde transport510.7×3e-03
Membrane Trafficking95.4×2e-03

GO biological processes:

GO termPartnersFoldFDR
obsolete vesicle docking760.9×8e-09
vesicle fusion747.9×3e-08
intra-Golgi vesicle-mediated transport635.9×2e-06
membrane fusion535.5×3e-05
endocytic recycling515.2×2e-03
intracellular protein transport128.8×2e-06
protein transport105.0×2e-03

Disease & clinical

Clinical variants and AI predictions

ClinVar

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

ClassificationCount (floor)
Pathogenic2
Likely pathogenic0
Uncertain significance33
Likely benign1
Benign0

Top pathogenic / likely-pathogenic (2)

Variant IDHGVSClassification
146198GRCh38/hg38 18p11.32-11.21(chr18:148963-14081888)x4Pathogenic
1526593GRCh37/hg19 18p11.32-11.21(chr18:136226-14983938)Pathogenic

SpliceAI

2201 predictions. Top by Δscore:

VariantEffectΔscore
18:10526154:AAATA:Adonor_gain1.0000
18:10526155:AATA:Adonor_gain1.0000
18:10526156:ATA:Adonor_gain1.0000
18:10526157:TA:Tdonor_gain1.0000
18:10526158:AG:Adonor_loss1.0000
18:10526159:GTGA:Gdonor_gain1.0000
18:10526161:GA:Gdonor_gain1.0000
18:10526163:G:GGdonor_gain1.0000
18:10528985:T:TAacceptor_gain1.0000
18:10528987:T:TAacceptor_gain1.0000
18:10528988:G:Aacceptor_gain1.0000
18:10530768:A:AGacceptor_gain1.0000
18:10530769:G:GGacceptor_gain1.0000
18:10532793:G:GTdonor_gain1.0000
18:10533509:A:AGacceptor_gain1.0000
18:10533510:A:Gacceptor_gain1.0000
18:10533514:T:TAacceptor_gain1.0000
18:10539481:G:GTdonor_gain1.0000
18:10539732:T:Aacceptor_gain1.0000
18:10539744:T:Aacceptor_gain1.0000
18:10539753:T:TAacceptor_gain1.0000
18:10539758:A:AGacceptor_gain1.0000
18:10539761:GGA:Gacceptor_gain1.0000
18:10539867:GGAAA:Gdonor_gain1.0000
18:10539868:GAAA:Gdonor_gain1.0000
18:10539868:GAAAG:Gdonor_gain1.0000
18:10539869:A:Tdonor_gain1.0000
18:10539870:AAGT:Adonor_loss1.0000
18:10539871:AG:Adonor_loss1.0000
18:10539872:G:GGdonor_gain1.0000

AlphaMissense

2041 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
18:10526127:G:TG9W1.000
18:10530814:C:AA34D1.000
18:10532746:G:CA54P1.000
18:10533550:C:AA75D1.000
18:10534483:G:AG82E1.000
18:10548327:T:CL205P1.000
18:10526128:G:AG9E0.999
18:10530813:G:CA34P0.999
18:10530817:C:AA35D0.999
18:10530834:G:CA41P0.999
18:10532724:A:CK46N0.999
18:10532724:A:TK46N0.999
18:10532728:G:CA48P0.999
18:10532770:G:CA62P0.999
18:10533540:T:CF72L0.999
18:10533542:T:AF72L0.999
18:10533542:T:GF72L0.999
18:10533546:G:CA74P0.999
18:10533547:C:AA74D0.999
18:10533549:G:CA75P0.999
18:10534479:G:CA81P0.999
18:10534482:G:AG82R0.999
18:10534482:G:CG82R0.999
18:10539783:G:CA94P0.999
18:10539804:G:CA101P0.999
18:10539805:C:AA101D0.999
18:10539843:G:CA114P0.999
18:10539844:C:AA114E0.999
18:10539847:C:AA115D0.999
18:10539862:G:CR120P0.999

dbSNP variants (sampled 300 via entrez): RS1000087769 (18:10535764 GTAATAA>G,GTAA,GTAATAATAA), RS1000139316 (18:10542074 TG>T), RS1000408137 (18:10524300 A>C,T), RS1000544444 (18:10535501 C>T), RS1000549051 (18:10551005 T>G), RS1000758091 (18:10524534 C>T), RS1000781762 (18:10525553 G>T), RS1000796145 (18:10528055 G>A), RS1000915305 (18:10528312 G>T), RS1001090760 (18:10536912 T>G), RS1001121630 (18:10534298 A>G), RS1001122987 (18:10528445 A>G,T), RS1001175320 (18:10528092 A>G), RS1001345729 (18:10525899 C>T), RS1001406042 (18:10534101 C>T)

Disease associations

OMIM: gene MIM:603216 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

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

GWAS associations

5 associations (top):

StudyTraitp-value
GCST001210_1Non-small cell lung cancer1.000000e-06
GCST003875_20Gut microbiota (bacterial taxa)3.000000e-11
GCST003875_21Gut microbiota (bacterial taxa)3.000000e-11
GCST003875_22Gut microbiota (bacterial taxa)3.000000e-11
GCST009391_1108Metabolite levels3.000000e-06

EFO canonical traits (3, from GWAS)

EFO IDTrait name
EFO:0007874gut microbiome measurement
EFO:0007883taxonomic microbiome measurement
EFO:00104483-hydroxyphenylacetic acid measurement

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

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

CTD chemical–gene interactions

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

ChemicalActions (top 5)PubMed papers
Valproic Acidaffects cotreatment, increases expression, decreases methylation5
Benzo(a)pyrenedecreases methylation, increases expression3
Tobacco Smoke Pollutionaffects expression, increases expression2
FR900359decreases phosphorylation1
bisphenol Faffects cotreatment, increases expression1
dicrotophosdecreases expression1
methylmercuric chlorideincreases expression1
bisphenol Aincreases expression1
potassium perchloratedecreases expression1
methylparabenincreases expression1
sodium arseniteincreases expression1
potassium chromate(VI)affects cotreatment, decreases expression1
4-aminophenylarsenoxideaffects binding, decreases reaction1
epigallocatechin gallateaffects cotreatment, decreases expression1
microcystin RRdecreases expression1
di-n-butylphosphoric acidaffects expression1
CGP 52608increases reaction, affects binding1
K 7174increases expression1
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideaffects cotreatment, increases expression1
dorsomorphinaffects cotreatment, increases expression1
bisphenol Sincreases expression1
bisphenol AFincreases expression1
Resveratrolaffects cotreatment, increases expression1
Arsenic Trioxideaffects binding, decreases reaction1
Vorinostataffects cotreatment, increases expression1
Air Pollutantsdecreases expression, increases abundance1
Atrazineincreases expression1
Caffeinedecreases phosphorylation1
Dexamethasoneaffects cotreatment, increases expression1
Doxorubicindecreases expression1

Clinical trials (associated diseases)

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

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.