XPO1
Exportin-1
Also known as: CRM-1, CRM1, emb, XPO1_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O14980
- Gene
- XPO1
- Ensembl
- ENSG00000082898
- Chromosome
- 2
- Canonical length
- 1071 aa
- Protein class
- Cancer-related genes, FDA approved drug targets, Plasma proteins, Predicted intracellular proteins, Transporters
- Subcellular location
- Nucleoplasm,Nuclear membrane,Vesicles,Cytosol
OverviewNCBI Gene
This cell-cycle-regulated gene encodes a protein that mediates leucine-rich nuclear export signal (NES)-dependent protein transport. The protein specifically inhibits the nuclear export of Rev and U snRNAs. It is involved in the control of several cellular processes by controlling the localization of cyclin B, MPAK, and MAPKAP kinase 2. This protein also regulates NFAT and AP-1. [provided by RefSeq, Jan 2015]
Canonical amino-acid sequenceUniProt
1071 residues, UniProt reviewed canonical sequence.
>O14980|XPO1
1 MPAIMTMLAD HAARQLLDFS QKLDINLLDN VVNCLYHGEG AQQRMAQEVL THLKEHPDAW
61 TRVDTILEFS QNMNTKYYGL QILENVIKTR WKILPRNQCE GIKKYVVGLI IKTSSDPTCV
121 EKEKVYIGKL NMILVQILKQ EWPKHWPTFI SDIVGASRTS ESLCQNNMVI LKLLSEEVFD
181 FSSGQITQVK SKHLKDSMCN EFSQIFQLCQ FVMENSQNAP LVHATLETLL RFLNWIPLGY
241 IFETKLISTL IYKFLNVPMF RNVSLKCLTE IAGVSVSQYE EQFVTLFTLT MMQLKQMLPL
301 NTNIRLAYSN GKDDEQNFIQ NLSLFLCTFL KEHDQLIEKR LNLRETLMEA LHYMLLVSEV
361 EETEIFKICL EYWNHLAAEL YRESPFSTSA SPLLSGSQHF DVPPRRQLYL PMLFKVRLLM
421 VSRMAKPEEV LVVENDQGEV VREFMKDTDS INLYKNMRET LVYLTHLDYV DTERIMTEKL
481 HNQVNGTEWS WKNLNTLCWA IGSISGAMHE EDEKRFLVTV IKDLLGLCEQ KRGKDNKAII
541 ASNIMYIVGQ YPRFLRAHWK FLKTVVNKLF EFMHETHDGV QDMACDTFIK IAQKCRRHFV
601 QVQVGEVMPF IDEILNNINT IICDLQPQQV HTFYEAVGYM IGAQTDQTVQ EHLIEKYMLL
661 PNQVWDSIIQ QATKNVDILK DPETVKQLGS ILKTNVRACK AVGHPFVIQL GRIYLDMLNV
721 YKCLSENISA AIQANGEMVT KQPLIRSMRT VKRETLKLIS GWVSRSNDPQ MVAENFVPPL
781 LDAVLIDYQR NVPAAREPEV LSTMAIIVNK LGGHITAEIP QIFDAVFECT LNMINKDFEE
841 YPEHRTNFFL LLQAVNSHCF PAFLAIPPTQ FKLVLDSIIW AFKHTMRNVA DTGLQILFTL
901 LQNVAQEEAA AQSFYQTYFC DILQHIFSVV TDTSHTAGLT MHASILAYMF NLVEEGKIST
961 SLNPGNPVNN QIFLQEYVAN LLKSAFPHLQ DAQVKLFVTG LFSLNQDIPA FKEHLRDFLV
1021 QIKEFAGEDT SDLFLEEREI ALRQADEEKH KRQMSVPGIF NPHEIPEEMC DLocalizationUniProt · AlphaFold · HPA
Whether an antibody against XPO1 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.24
- Highest tissue expression
- 69 nTPM
Expression across tissuesHPA
Tissue
- thymus: 69 nTPM
- lymph node: 61 nTPM
- tonsil: 57 nTPM
- testis: 51 nTPM
- ovary: 50 nTPM
- endometrium: 49 nTPM
Single-cell type
- sertoli cells: 356 nCPM
- monocyte progenitors: 323 nCPM
- myonuclei: 304 nCPM
- erythrocyte progenitors: 290 nCPM
- neutrophil progenitors: 260 nCPM
- megakaryocyte progenitors: 239 nCPM
Immune cell
- basophil: 3.4 nTPM
- NK-cell: 2.8 nTPM
- eosinophil: 2.3 nTPM
- intermediate monocyte: 2.3 nTPM
- myeloid DC: 2.2 nTPM
- MAIT T-cell: 2 nTPM
Brain region
- white matter: 64 nTPM
- cerebellum: 59 nTPM
- hypothalamus: 54 nTPM
- thalamus: 51 nTPM
- choroid plexus: 50 nTPM
- basal ganglia: 49 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about XPO1.
Disease | GeneticClinVar
16 pathogenic / likely-pathogenic of 119 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- XPO1-associated Neurodevelopmental Disorder
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)
- 0.05
- gnomAD pLI
- 1
- gnomAD missense Z
- 6.01
- DepMap mean gene effect
- -1.98
- DepMap dependency class
- pan
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 7% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- cellular response to triglyceride
- mRNA export from nucleus
- negative regulation of transcription by RNA polymerase II
- nucleocytoplasmic transport
- protein export from nucleus
- protein localization to nucleus
- regulation of centrosome duplication
- regulation of proteasomal ubiquitin-dependent protein catabolic process
- regulation of protein export from nucleus
- response to xenobiotic stimulus
- ribosomal large subunit export from nucleus
- ribosomal small subunit export from nucleus
- ribosomal subunit export from nucleus
- ribosome biogenesis
- cellular response to salt
Molecular functions
- DNA-binding transcription factor binding
- nuclear export signal receptor activity
- protein domain specific binding
- RNA binding
- small GTPase binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Importin-beta, N-terminal domain
- Armadillo-like helical
- Exportin-1/Importin-beta-like
- Exportin-1, C-terminal
- Armadillo-type fold
- Exportin-1/5
- Importin-beta N-terminal domain
- Exportin 1-like protein
- CRM1 C terminal
- Exportin-1, repeat 3
- Chromosome region maintenance repeat
- Exportin-1, repeat 2
- Chromosome region maintenance or exportin repeat
- CRM1 / Exportin repeat 2
- CRM1 / Exportin repeat 3
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of XPO1 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 XPO1 as an antibody target. Whether an autoantibody or antibody against XPO1 could matter depends on whether native XPO1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
XPO1 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 XPO1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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