Importin subunit alpha-3

Protein-coding gene in the species Homo sapiens From Wikipedia, the free encyclopedia

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]

PDBOrtholog search: PDBe RCSB
AliasesKPNA4, IPOA3, QIP1, SRP3, karyopherin subunit alpha 4
Quick facts KPNA4, Available structures ...
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
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Function

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

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

References

Further reading

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