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Importin subunit alpha-3
from Wikipedia
KPNA4
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesKPNA4, IPOA3, QIP1, SRP3, karyopherin subunit alpha 4
External IDsOMIM: 602970; MGI: 1100848; HomoloGene: 20521; GeneCards: KPNA4; OMA:KPNA4 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_002268

NM_008467

RefSeq (protein)

NP_002259

NP_032493

Location (UCSC)Chr 3: 160.5 – 160.57 MbChr 3: 68.97 – 69.03 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Importin subunit alpha-3, also known as karyopherin subunit alpha-4, is a protein that in humans is encoded by the KPNA4 gene.[5][6]

Function

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The nuclear import of karyophilic proteins is directed by short amino acid sequences termed nuclear localization signals (NLSs). Karyopherins, or importins, are cytoplasmic proteins that recognize NLSs and dock NLS-containing proteins to the nuclear pore complex. The protein encoded by this gene shares the sequence similarity with Xenopus importin-alpha and Saccharomyces cerevisiae Srp1. This protein is found to interact with the NLSs of DNA helicase Q1 and SV40 T antigen.[7]

Interactions

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KPNA4 has been shown to interact with RECQL[5] and STAT3.[8]

References

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Further reading

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