XPO6

gene
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Also known as KIAA0370FLJ22519

Summary

XPO6 (exportin 6, HGNC:19733) is a protein-coding gene on chromosome 16p12.1, encoding Exportin-6 (Q96QU8). Mediates the nuclear export of actin and profilin-actin complexes in somatic cells.

The protein encoded by this gene is a member of the importin-beta family. Members of this family are regulated by the GTPase Ran to mediate transport of cargo across the nuclear envelope. This protein has been shown to mediate nuclear export of profilin-actin complexes. A pseudogene of this gene is located on the long arm of chromosome 14. Alternative splicing results in multiple transcript variants that encode different protein isoforms.

Source: NCBI Gene 23214 — RefSeq curated summary.

At a glance

  • GWAS associations: 6
  • Clinical variants (ClinVar): 134 total
  • Druggable target: yes
  • MANE Select transcript: NM_015171

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:19733
Approved symbolXPO6
Nameexportin 6
Location16p12.1
Locus typegene with protein product
StatusApproved
AliasesKIAA0370, FLJ22519
Ensembl geneENSG00000169180
Ensembl biotypeprotein_coding
OMIM608411
Entrez23214

Gene structure

Transcript identifiers

Ensembl transcripts: 32 — 18 protein_coding, 7 retained_intron, 5 protein_coding_CDS_not_defined, 2 nonsense_mediated_decay

ENST00000304658, ENST00000561488, ENST00000562408, ENST00000563138, ENST00000564337, ENST00000564905, ENST00000565284, ENST00000565698, ENST00000566073, ENST00000566175, ENST00000567038, ENST00000567842, ENST00000568065, ENST00000569216, ENST00000569315, ENST00000569951, ENST00000569973, ENST00000570007, ENST00000570033, ENST00000570294, ENST00000573275, ENST00000573645, ENST00000574435, ENST00000864044, ENST00000864045, ENST00000917809, ENST00000917810, ENST00000917811, ENST00000917812, ENST00000917813, ENST00000917814, ENST00000959279

RefSeq mRNA: 2 — MANE Select: NM_015171 NM_001270940, NM_015171

CCDS: CCDS42135, CCDS59266

Canonical transcript exons

ENST00000304658 — 24 exons

ExonStartEnd
ENSE000008944272811731828117462
ENSE000008944312810638328106497
ENSE000008944322810604328106214
ENSE000008944332810454628104707
ENSE000008944342810184728101945
ENSE000011385712810752228107677
ENSE000012401032810145828101688
ENSE000012402022815607428156527
ENSE000012402252817589828176095
ENSE000013024112809797628098639
ENSE000014867032821136628211965
ENSE000034805352814609428146203
ENSE000034862612813233428132403
ENSE000034969782811290428113050
ENSE000035306522816975028169909
ENSE000035347642818094128181031
ENSE000035351472812167028121762
ENSE000035650692813521628135324
ENSE000035856172813384128133933
ENSE000035967662812568928125848
ENSE000035968252817722028177332
ENSE000036188472816650828166585
ENSE000036230402811181728112006
ENSE000036577742815265928152785

Expression profiles

Bgee: expression breadth ubiquitous, 294 present calls, max score 98.91.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 28.6588 / max 1433.0364, expressed in 1809 samples.

FANTOM5 promoters (9 alternative TSS)

Promoter IDTPM avgSamples expressed
15687521.32911805
1568745.91261591
1568730.6940280
1568710.3306105
1568720.137144
1568660.096916
1568700.064121
1568670.055512
1568680.03889

Top tissues by expression

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

TissueAnatomy IDExpression scoreQuality
bloodUBERON:000017898.91gold quality
granulocyteCL:000009498.29gold quality
left testisUBERON:000453398.16gold quality
right testisUBERON:000453498.11gold quality
spleenUBERON:000210698.10gold quality
colonic epitheliumUBERON:000039798.01gold quality
C1 segment of cervical spinal cordUBERON:000646997.71gold quality
nerveUBERON:000102197.56gold quality
tibial nerveUBERON:000132397.56gold quality
upper lobe of left lungUBERON:000895296.96gold quality
right frontal lobeUBERON:000281096.80gold quality
ventricular zoneUBERON:000305396.79gold quality
right lungUBERON:000216796.78gold quality
right lobe of thyroid glandUBERON:000111996.71gold quality
ganglionic eminenceUBERON:000402396.69gold quality
cortical plateUBERON:000534396.67gold quality
adrenal tissueUBERON:001830396.47gold quality
spinal cordUBERON:000224096.45gold quality
testisUBERON:000047396.44gold quality
skin of legUBERON:000151196.43gold quality
primordial germ cell in gonadCL:0000670 ∩ UBERON:000099196.41gold quality
stromal cell of endometriumCL:000225596.41gold quality
adenohypophysisUBERON:000219696.38gold quality
left lobe of thyroid glandUBERON:000112096.35gold quality
caudate nucleusUBERON:000187396.22gold quality
skin of abdomenUBERON:000141696.18gold quality
small intestine Peyer’s patchUBERON:000345496.18gold quality
upper lobe of lungUBERON:000894896.07gold quality
left uterine tubeUBERON:000130396.04gold quality
amygdalaUBERON:000187696.03gold quality

Single-cell (SCXA)

Detected in 3 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes5.72
E-MTAB-9689no191.46
E-CURD-10no65.80

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

43 targeting XPO6, 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-196A-1-3P99.9972.152772
HSA-MIR-3065-5P99.9771.563281
HSA-MIR-570-3P99.9672.414910
HSA-MIR-426799.9666.532368
HSA-MIR-6825-5P99.9669.813431
HSA-MIR-1-3P99.9372.351914
HSA-MIR-20699.9372.501893
HSA-MIR-539-5P99.9370.302855
HSA-MIR-61399.9171.501710
HSA-MIR-3529-3P99.9073.553045
HSA-MIR-182599.7268.111089
HSA-MIR-452799.6667.43714
HSA-MIR-103A-1-5P99.3967.781545
HSA-MIR-103A-2-5P99.3967.721577
HSA-MIR-4786-3P99.3668.351390
HSA-MIR-584-3P99.3567.691082
HSA-MIR-127299.3468.79878
HSA-MIR-808599.2867.562362
HSA-MIR-100-3P99.2067.33672
HSA-MIR-146A-3P99.1368.991881
HSA-MIR-6770-5P98.9766.761853
HSA-MIR-3922-5P98.7766.531059
HSA-MIR-477398.3567.301710
HSA-MIR-6842-3P98.0766.331325
HSA-MIR-6529-5P97.8566.47673
HSA-MIR-392197.8167.451431
HSA-MIR-365297.7165.431890
HSA-MIR-443097.4765.611813
HSA-MIR-7855-5P97.3967.18925
HSA-MIR-227897.3066.191130

Literature-anchored findings (GeneRIF, showing 6)

  • identify exportin 6 (Exp6) as a novel family member from higher eukaryotes and show that it mediates nuclear export of profilin.actin complexes (PMID:14592989)
  • Data suggest actin accumulation in senescent cells is due to the failure of RanGTP restoration with ATP deficiency and NTF2 accumulation, resulting in decreased actin export via Exp6 inactivation. (PMID:21195711)
  • potential prognostic biomarker for predicting prostate cancer recurrence [meta-analysis] (PMID:26709895)
  • These results shed light on the crucial role of LN1 in quiescence and differentiation and how defects in the LN1/PI3K/XPO6/N-actin axis explain the loss of tissue homeostasis and growth control that contributes to malignant progression. (PMID:28591581)
  • The XPO6 Exportin Mediates Herpes Simplex Virus 1 gM Nuclear Release Late in Infection. (PMID:32817212)
  • Cancer-associated exportin-6 upregulation inhibits the transcriptionally repressive and anticancer effects of nuclear profilin-1. (PMID:33596420)

Cross-species orthologs

4 orthologs

OrganismSymbolGene ID
danio_rerioxpo6ENSDARG00000041217
mus_musculusXpo6ENSMUSG00000000131
rattus_norvegicusXpo6ENSRNOG00000016722
drosophila_melanogastereboFBGN0266572

Protein

Protein identifiers

Exportin-6Q96QU8 (reviewed: Q96QU8)

Alternative names: Ran-binding protein 20

All UniProt accessions (10): Q96QU8, H3BMW9, H3BPG8, H3BR41, H3BRJ6, H3BRV5, H3BUP8, I3L0S8, I3L2D7, I3L2K0

UniProt curated annotations — full annotation on UniProt →

Function. Mediates the nuclear export of actin and profilin-actin complexes in somatic cells.

Subunit / interactions. Found in a complex with XPO6, Ran, ACTB and PFN1. Interacts with ACTB. Interacts with ACTB in a RanGTP-dependent manner.

Subcellular location. Nucleus. Cytoplasm.

Similarity. Belongs to the exportin family.

Isoforms (2)

UniProt IDNamesCanonical?
Q96QU8-11yes
Q96QU8-22

RefSeq proteins (2): NP_001257869, NP_055986* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001494Importin-beta_NDomain
IPR011989ARM-likeHomologous_superfamily
IPR013598Exportin-1/Importin-b-likeDomain
IPR016024ARM-type_foldHomologous_superfamily
IPR040016XPO6Family

Pfam: PF03810, PF08389

UniProt features (14 total): modified residue 6, sequence conflict 3, initiator methionine 1, chain 1, sequence variant 1, domain 1, splice variant 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q96QU8-F187.110.61

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 (6): 2, 199, 201, 204, 208, 224

Function

Pathways and Gene Ontology

Reactome pathways

0 pathways

MSigDB gene sets: 196 (showing top): AHRARNT_01, MORF_MTA1, GCM_GSPT1, GOBP_INTRACELLULAR_PROTEIN_TRANSPORT, MORF_CDK2, MORF_HDAC2, GOMF_GTPASE_BINDING, MONNIER_POSTRADIATION_TUMOR_ESCAPE_UP, NFKB_Q6, GOBP_NUCLEAR_TRANSPORT, WEI_MYCN_TARGETS_WITH_E_BOX, NFKB_C, MORF_RAF1, GATA3_01, MORF_FANCG

GO Biological Process (4): protein export from nucleus (GO:0006611), intracellular protein transport (GO:0006886), nucleocytoplasmic transport (GO:0006913), protein transport (GO:0015031)

GO Molecular Function (3): nuclear export signal receptor activity (GO:0005049), small GTPase binding (GO:0031267), protein binding (GO:0005515)

GO Cellular Component (7): nucleus (GO:0005634), nucleoplasm (GO:0005654), nucleolus (GO:0005730), cytoplasm (GO:0005737), cytosol (GO:0005829), plasma membrane (GO:0005886), protein-containing complex (GO:0032991)

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure3
nuclear export2
intracellular protein localization2
nuclear lumen2
intracellular protein transport1
protein transport1
intracellular transport1
nuclear transport1
transport1
establishment of protein localization1
nucleocytoplasmic carrier activity1
GTPase binding1
binding1
intracellular membrane-bounded organelle1
intracellular membraneless organelle1
intracellular anatomical structure1
cytoplasm1
membrane1
cell periphery1
cellular_component1

Protein interactions and networks

STRING

1958 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
XPO6PFN1P07737990
XPO6PFN4Q8NHR9954
XPO6PFN3P60673952
XPO6IPO9Q96P70828
XPO6XPO4Q9C0E2820
XPO6XPO7Q9UIA9805
XPO6ACTBP02570794
XPO6CSE1LP55060770
XPO6XPOTO43592668
XPO6CFL2Q9Y281667
XPO6CFL1P23528667
XPO6XPO5Q9HAV4650
XPO6XPO1O14980632
XPO6TMTC3Q6ZXV5614
XPO6IPO4Q8TEX9591

IntAct

105 interactions, top by confidence:

ABTypeScore
NUP62XPO6psi-mi:“MI:0915”(physical association)0.670
XPO6NUP62psi-mi:“MI:0915”(physical association)0.670
SCN2BEXOC5psi-mi:“MI:0914”(association)0.640
ILVBLCOG7psi-mi:“MI:0914”(association)0.640
STK4STRNpsi-mi:“MI:0914”(association)0.610
NPY2RRTL8Cpsi-mi:“MI:0914”(association)0.530
NCR3LG1FAM171A2psi-mi:“MI:0914”(association)0.530
FCGRTGOLIM4psi-mi:“MI:0914”(association)0.530
CD83BTAF1psi-mi:“MI:0914”(association)0.530
VSIG2TTI1psi-mi:“MI:0914”(association)0.530
CD274TTI1psi-mi:“MI:0914”(association)0.530
CA14EXOC5psi-mi:“MI:0914”(association)0.530
ILVBLEIF2B5psi-mi:“MI:0914”(association)0.530
ILVBLSLC33A1psi-mi:“MI:0914”(association)0.530
CD40EXOC5psi-mi:“MI:0914”(association)0.530
LPAR1TMEM223psi-mi:“MI:0914”(association)0.530
SLC30A4OPA1psi-mi:“MI:0914”(association)0.530
RASSF1MAP1Bpsi-mi:“MI:0914”(association)0.530
XPO6SLC27A2psi-mi:“MI:0915”(physical association)0.400
ORF4DNM1Lpsi-mi:“MI:0914”(association)0.350
SIGLECL1KIAA1324Lpsi-mi:“MI:0914”(association)0.350
LYPD3CLASP2psi-mi:“MI:0914”(association)0.350
FPR2GPR89Apsi-mi:“MI:0914”(association)0.350
VIPR1GPR89Apsi-mi:“MI:0914”(association)0.350
PVRQSOX1psi-mi:“MI:0914”(association)0.350

BioGRID (125): NUP62 (Two-hybrid), XPO6 (Reconstituted Complex), XPO6 (Affinity Capture-MS), XPO6 (Affinity Capture-MS), XPO6 (Affinity Capture-MS), XPO6 (Affinity Capture-MS), XPO6 (Affinity Capture-MS), NUP62 (Two-hybrid), XPO6 (Affinity Capture-MS), XPO6 (Affinity Capture-MS), XPO6 (Co-fractionation), XPO6 (Co-fractionation), XPO6 (Co-fractionation), XPO6 (Co-fractionation), XPO6 (Co-fractionation)

ESM2 similar proteins: A4FUD6, A4QNE0, B5KFI0, F1Q8X5, O35841, P40763, P42224, P42227, P52631, P70398, Q19S50, Q3ZBE1, Q5R644, Q5R8I6, Q5R8N4, Q5RCC1, Q5RCR8, Q5XI83, Q6DFZ1, Q6DV79, Q6NRC7, Q6NRL4, Q6QI06, Q6R327, Q7SXV1, Q7Z3J2, Q8BHL5, Q8BIK4, Q8BPU7, Q8BWQ6, Q8CIB5, Q8CIQ7, Q8IWV8, Q8IWZ6, Q8IZD9, Q8K0F1, Q8K2G4, Q8R5L3, Q924Z6, Q92538

Diamond homologs: Q53I77, Q6NTZ5, Q8QHJ8, Q924Z6, Q96QU8

SIGNOR signaling

0 interactions.

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 123 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.

GO biological processes:

GO termPartnersFoldFDR
adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway613.0×6e-03

Disease & clinical

Clinical variants and AI predictions

ClinVar

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

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance100
Likely benign1
Benign1

Top pathogenic / likely-pathogenic (0)

SpliceAI

5312 predictions. Top by Δscore:

VariantEffectΔscore
16:28101451:T:Adonor_gain1.0000
16:28101684:ATCTT:Aacceptor_gain1.0000
16:28101686:CTT:Cacceptor_gain1.0000
16:28101687:TT:Tacceptor_gain1.0000
16:28101689:C:CCacceptor_gain1.0000
16:28101842:CTTA:Cdonor_loss1.0000
16:28101843:TTA:Tdonor_loss1.0000
16:28101844:TACC:Tdonor_loss1.0000
16:28101845:A:ACdonor_gain1.0000
16:28101845:ACCT:Adonor_loss1.0000
16:28101846:C:CCdonor_gain1.0000
16:28101943:AGCC:Aacceptor_loss1.0000
16:28101944:GCCTA:Gacceptor_loss1.0000
16:28101945:CCT:Cacceptor_loss1.0000
16:28101946:C:CAacceptor_loss1.0000
16:28101946:C:CCacceptor_gain1.0000
16:28101947:T:Gacceptor_loss1.0000
16:28104541:GTTA:Gdonor_loss1.0000
16:28104544:A:Cdonor_loss1.0000
16:28104703:GGACG:Gacceptor_gain1.0000
16:28104704:GACG:Gacceptor_gain1.0000
16:28104705:ACG:Aacceptor_gain1.0000
16:28104706:CG:Cacceptor_gain1.0000
16:28104706:CGC:Cacceptor_gain1.0000
16:28104707:GCT:Gacceptor_loss1.0000
16:28104708:C:CCacceptor_gain1.0000
16:28104708:C:Gacceptor_loss1.0000
16:28106038:CCTAC:Cdonor_loss1.0000
16:28106040:TACC:Tdonor_loss1.0000
16:28106042:C:CTdonor_loss1.0000

AlphaMissense

7416 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
16:28125789:C:GD556H1.000
16:28125794:A:GL554P1.000
16:28125804:G:CH551D1.000
16:28133898:G:CS493R1.000
16:28133898:G:TS493R1.000
16:28133900:T:GS493R1.000
16:28146167:A:GW421R1.000
16:28146167:A:TW421R1.000
16:28152669:G:TT405K1.000
16:28152735:A:GL383P1.000
16:28152739:G:CH382D1.000
16:28152759:A:GL375P1.000
16:28156140:A:GL344P1.000
16:28156215:A:GL319P1.000
16:28156236:G:TA312D1.000
16:28156396:A:GW259R1.000
16:28156396:A:TW259R1.000
16:28156404:A:GL256P1.000
16:28169875:A:GL147P1.000
16:28169878:C:TG146E1.000
16:28169879:C:AG146W1.000
16:28169879:C:GG146R1.000
16:28169879:C:TG146R1.000
16:28175937:C:AW122C1.000
16:28175937:C:GW122C1.000
16:28175939:A:GW122R1.000
16:28175939:A:TW122R1.000
16:28175947:C:GR119P1.000
16:28175950:C:TG118E1.000
16:28175951:C:GG118R1.000

dbSNP variants (sampled 300 via entrez): RS1000020262 (16:28136887 A>G), RS1000045684 (16:28103280 AATGCATGTGAAACTC>A), RS1000054161 (16:28181253 T>C), RS1000057066 (16:28151423 C>T), RS1000124293 (16:28161293 G>A), RS1000145464 (16:28194423 A>T), RS1000145486 (16:28102047 T>C), RS1000177320 (16:28161598 A>G), RS1000182554 (16:28179690 C>T), RS1000216367 (16:28110821 G>C), RS1000261071 (16:28154207 C>T), RS1000264138 (16:28111277 C>G), RS1000273128 (16:28130703 A>T), RS1000278588 (16:28211716 C>G), RS1000327052 (16:28141918 C>T)

Disease associations

OMIM: gene MIM:608411 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

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

GWAS associations

6 associations (top):

StudyTraitp-value
GCST010002_111Refractive error3.000000e-09
GCST010241_84Apolipoprotein A1 levels3.000000e-13
GCST011742_22Triglyceride levels in HIV infection6.000000e-07
GCST011742_8Triglyceride levels in HIV infection6.000000e-07
GCST90002393_267Monocyte count2.000000e-13
GCST90011900_123Serum alkaline phosphatase levels1.000000e-08

EFO canonical traits (4, from GWAS)

EFO IDTrait name
EFO:0004614apolipoprotein A 1 measurement
EFO:0004530triglyceride measurement
EFO:0005091monocyte count
EFO:0004533alkaline phosphatase measurement

Drugs & pharmacology

Drug and pharmacology data

Is drug target: yes

ChEMBL targets (1): CHEMBL6066255 (SINGLE PROTEIN)

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

ChEMBL bioactivities

2 potent at pChembl≥5 of 2 total, top 2 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).

pChemblTypeValueUnitMolecule
6.18Kd654.3nMCHEMBL5653589
6.18ED50654.3nMCHEMBL5653589

PubChem BioAssay actives

1 with measured affinity, of 2 total; 1 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.

CompoundAssayTypeValueUnit
4-methyl-3-[(2-methyl-6-pyridin-3-ylpyrazolo[3,4-d]pyrimidin-4-yl)amino]-N-[3-(trifluoromethyl)phenyl]benzamide2149788: Binding affinity to human XPO6 incubated for 45 mins by Kinobead based pull down assaykd0.6543uM

CTD chemical–gene interactions

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

ChemicalActions (top 5)PubMed papers
bisphenol Aaffects cotreatment, decreases methylation, decreases expression2
Air Pollutantsaffects expression, affects cotreatment, increases abundance, increases oxidation2
Estradiolincreases expression2
Ozoneincreases oxidation, increases abundance, affects expression, affects cotreatment2
Cyclosporineincreases expression2
GSK-J4increases expression1
bisphenol Faffects cotreatment, decreases expression1
dicrotophosincreases expression1
triphenyl phosphateaffects expression1
alpha-pineneincreases abundance, affects cotreatment, increases oxidation1
beta-lapachoneincreases expression1
methylparabenincreases expression1
potassium chromate(VI)affects cotreatment, decreases expression1
methacrylaldehydeaffects cotreatment, increases oxidation, increases abundance1
beta-methylcholineaffects expression1
epigallocatechin gallateaffects cotreatment, decreases expression1
di-n-butylphosphoric acidaffects expression1
cylindrospermopsinincreases expression1
abrineincreases expression1
bisphenol Saffects cotreatment, decreases expression1
Sunitinibincreases expression1
Zoledronic Acidincreases expression1
Fulvestrantaffects cotreatment, decreases methylation1
Acroleinaffects cotreatment, increases oxidation, increases abundance1
Air Pollutants, Occupationalaffects expression1
Benzo(a)pyreneincreases methylation1
Caffeineaffects phosphorylation1
Cisplatindecreases expression1
Dexamethasoneaffects cotreatment, decreases expression1
Folic Aciddecreases expression1

ChEMBL screening assays

1 unique, capped per target: 1 binding

Representative assays (with source publication via chembl_document):

Assay IDTypeDescriptionSource paper
CHEMBL5652830BindingBinding affinity to human XPO6 incubated for 45 mins by Kinobead based pull down assayNVP-BHG712: Effects of Regioisomers on the Affinity and Selectivity toward the EPHrin Family. — ChemMedChem

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.