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IPO5 importin 5 [ Homo sapiens (human) ]

Gene ID: 3843, updated on 2-Mar-2021

Summary

Official Symbol
IPO5provided by HGNC
Official Full Name
importin 5provided by HGNC
Primary source
HGNC:HGNC:6402
See related
Ensembl:ENSG00000065150 MIM:602008
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
IMB3; Pse1; imp5; KPNB3; RANBP5
Summary
Nucleocytoplasmic transport, a signal- and energy-dependent process, takes place through nuclear pore complexes embedded in the nuclear envelope. The import of proteins containing a nuclear localization signal (NLS) requires the NLS import receptor, a heterodimer of importin alpha and beta subunits also known as karyopherins. Importin alpha binds the NLS-containing cargo in the cytoplasm and importin beta docks the complex at the cytoplasmic side of the nuclear pore complex. In the presence of nucleoside triphosphates and the small GTP binding protein Ran, the complex moves into the nuclear pore complex and the importin subunits dissociate. Importin alpha enters the nucleoplasm with its passenger protein and importin beta remains at the pore. Interactions between importin beta and the FG repeats of nucleoporins are essential in translocation through the pore complex. The protein encoded by this gene is a member of the importin beta family. [provided by RefSeq, Jul 2008]
Expression
Broad expression in testis (RPKM 84.9), ovary (RPKM 29.9) and 25 other tissues See more
Orthologs
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Genomic context

See IPO5 in Genome Data Viewer
Location:
13q32.2
Exon count:
31
Annotation release Status Assembly Chr Location
109.20210226 current GRCh38.p13 (GCF_000001405.39) 13 NC_000013.11 (97953641..98024296)
105.20201022 previous assembly GRCh37.p13 (GCF_000001405.25) 13 NC_000013.10 (98605929..98676550)

Chromosome 13 - NC_000013.11Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC105370324 Neighboring gene uncharacterized LOC105370325 Neighboring gene ribosomal protein L7a pseudogene 61 Neighboring gene uncharacterized LOC105370328 Neighboring gene uncharacterized LOC107984566 Neighboring gene ferritin light chain pseudogene 8 Neighboring gene FERM, ARH/RhoGEF and pleckstrin domain protein 1 Neighboring gene ring finger protein 113B

Genomic regions, transcripts, and products

Expression

  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Phenotypes

Associated conditions

Description Tests
Genome-wide association study of primary dentition pit-and-fissure and smooth surface caries.
GeneReviews: Not available

HIV-1 interactions

Replication interactions

Interaction Pubs
HIV-1 infection (VSV-G pseudotyped) of CEMT4 T cells downregulates plasma membrane expression of IPO5 PubMed

Protein interactions

Protein Gene Interaction Pubs
Rev rev importin beta specifically binds to the Rev nuclear localization signal (NLS, amino acids 35-50) and mediates the nuclear import of Rev PubMed
rev importin beta can inhibit the interaction of HIV-1 Rev with HIV-1 RRE RNA PubMed
Tat tat The binding of HIV-1 Tat with importin beta is inhibited by RanGTP PubMed
tat Importin beta binds to the HIV-1 Tat protein nuclear localization signal (NLS; amino acids 49-57) and mediates the nuclear import of Tat through a novel import pathway PubMed
Vpr vpr HIV-1 Vpr causes increased levels of CyclinB1, Plk1, and Cdk1 in a complex with the nuclear transport and spindle assembly protein, importin beta PubMed
vpr HIV-1 Vpr co-localizes with karyopherin beta and regulates karyopherin beta-mediated docking of the HIV-1 preintegration complex at the nuclear envelope, however multiple reports indicate the two proteins do not directly interact PubMed
capsid gag The interaction of HIV-1 CA with human cellular importin 5 protein (IPO5) is identified by yeast two-hybrid screen PubMed
integrase gag-pol Some reports indicate a possible role for the interactions between karyopherin alpha and beta with HIV-1 integrase in the nuclear import of HIV-1 preintegration complexes (PIC), while other reports indicate integrase is not involved in PIC nuclear import PubMed
gag-pol Karyopherin beta binds to complexes between HIV-1 integrase (integrase/GST fusion protein) and karyopherin alpha, but not to integrase alone PubMed
gag-pol Karyopherin alpha and beta are reported to interact with HIV-1 integrase (IN) to facilitate nuclear import of IN, however a conflicting report indicates nuclear accumulation of IN does not involve karyopherin alpha, beta 1, or beta 2 mediated pathways PubMed
matrix gag Karyopherin beta mediates the nuclear import of HIV-1 preintegration complexes through karyopherin alpha, which binds directly to nuclear localization signals in HIV-1 Matrix PubMed

Go to the HIV-1, Human Interaction Database

Pathways from PubChem

Interactions

Products Interactant Other Gene Complex Source Pubs Description

General gene information

Markers

Homology

Clone Names

  • MGC2068, FLJ43041, DKFZp686O1576

Gene Ontology Provided by GOA

Function Evidence Code Pubs
GTPase inhibitor activity TAS
Traceable Author Statement
more info
PubMed 
RNA binding HDA PubMed 
nuclear import signal receptor activity IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
nuclear import signal receptor activity ISS
Inferred from Sequence or Structural Similarity
more info
 
nuclear localization sequence binding IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
small GTPase binding TAS
Traceable Author Statement
more info
PubMed 
Process Evidence Code Pubs
NLS-bearing protein import into nucleus ISS
Inferred from Sequence or Structural Similarity
more info
 
cellular response to amino acid stimulus ISS
Inferred from Sequence or Structural Similarity
more info
 
negative regulation of GTPase activity IEA
Inferred from Electronic Annotation
more info
 
negative regulation of cyclin-dependent protein serine/threonine kinase activity TAS
Traceable Author Statement
more info
PubMed 
positive regulation of protein import into nucleus ISS
Inferred from Sequence or Structural Similarity
more info
 
protein import into nucleus IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
ribosomal protein import into nucleus IDA
Inferred from Direct Assay
more info
PubMed 
viral process IEA
Inferred from Electronic Annotation
more info
 
Component Evidence Code Pubs
cytoplasm IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
cytoplasm ISS
Inferred from Sequence or Structural Similarity
more info
 
membrane HDA PubMed 
nuclear pore TAS
Traceable Author Statement
more info
PubMed 
nucleolus IEA
Inferred from Electronic Annotation
more info
 
nucleus IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
nucleus ISS
Inferred from Sequence or Structural Similarity
more info
 

General protein information

Preferred Names
importin-5
Names
RAN binding protein 5
Ran_GTP binding protein 5
importin beta-3 subunit
importin subunit beta-3
karyopherin (importin) beta 3
karyopherin beta-3
ran-binding protein 5

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_002271.6NP_002262.4  importin-5

    Status: REVIEWED

    Source sequence(s)
    AF339834, AK125031, AL137120, AL705630, BC000947, BC001497, BC045640, BU618294, Y08890
    Consensus CDS
    CCDS31999.1
    Related
    ENSP00000499125.1, ENST00000651721.2
    Conserved Domains (6) summary
    COG5215
    Location:13634
    KAP95; Karyopherin (importin) beta [Intracellular trafficking and secretion]
    sd00044
    Location:355387
    HEAT; HEAT repeat [structural motif]
    pfam13513
    Location:921966
    HEAT_EZ; HEAT-like repeat
    pfam18808
    Location:268357
    Importin_rep_4; Importin repeat
    pfam18816
    Location:10051051
    Importin_rep_5; Importin repeat
    pfam18829
    Location:765874
    Importin_rep_6; Importin repeat 6

RefSeqs of Annotated Genomes: Homo sapiens Updated Annotation Release 109.20210226

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p13 Primary Assembly

Genomic

  1. NC_000013.11 Reference GRCh38.p13 Primary Assembly

    Range
    97953641..98024296
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_011521089.2XP_011519391.1  importin-5 isoform X1

    See identical proteins and their annotated locations for XP_011519391.1

    UniProtKB/Swiss-Prot
    O00410
    Conserved Domains (6) summary
    COG5215
    Location:31652
    KAP95; Karyopherin (importin) beta [Intracellular trafficking and secretion]
    sd00044
    Location:373405
    HEAT; HEAT repeat [structural motif]
    pfam13513
    Location:939984
    HEAT_EZ; HEAT-like repeat
    pfam18808
    Location:286375
    Importin_rep_4; Importin repeat
    pfam18816
    Location:10231069
    Importin_rep_5; Importin repeat
    pfam18829
    Location:783892
    Importin_rep_6; Importin repeat 6
  2. XM_011521087.2XP_011519389.1  importin-5 isoform X1

    See identical proteins and their annotated locations for XP_011519389.1

    UniProtKB/Swiss-Prot
    O00410
    Conserved Domains (6) summary
    COG5215
    Location:31652
    KAP95; Karyopherin (importin) beta [Intracellular trafficking and secretion]
    sd00044
    Location:373405
    HEAT; HEAT repeat [structural motif]
    pfam13513
    Location:939984
    HEAT_EZ; HEAT-like repeat
    pfam18808
    Location:286375
    Importin_rep_4; Importin repeat
    pfam18816
    Location:10231069
    Importin_rep_5; Importin repeat
    pfam18829
    Location:783892
    Importin_rep_6; Importin repeat 6
  3. XM_011521088.2XP_011519390.1  importin-5 isoform X1

    See identical proteins and their annotated locations for XP_011519390.1

    UniProtKB/Swiss-Prot
    O00410
    Conserved Domains (6) summary
    COG5215
    Location:31652
    KAP95; Karyopherin (importin) beta [Intracellular trafficking and secretion]
    sd00044
    Location:373405
    HEAT; HEAT repeat [structural motif]
    pfam13513
    Location:939984
    HEAT_EZ; HEAT-like repeat
    pfam18808
    Location:286375
    Importin_rep_4; Importin repeat
    pfam18816
    Location:10231069
    Importin_rep_5; Importin repeat
    pfam18829
    Location:783892
    Importin_rep_6; Importin repeat 6
  4. XM_017020562.1XP_016876051.1  importin-5 isoform X1

    UniProtKB/Swiss-Prot
    O00410
    Conserved Domains (6) summary
    COG5215
    Location:31652
    KAP95; Karyopherin (importin) beta [Intracellular trafficking and secretion]
    sd00044
    Location:373405
    HEAT; HEAT repeat [structural motif]
    pfam13513
    Location:939984
    HEAT_EZ; HEAT-like repeat
    pfam18808
    Location:286375
    Importin_rep_4; Importin repeat
    pfam18816
    Location:10231069
    Importin_rep_5; Importin repeat
    pfam18829
    Location:783892
    Importin_rep_6; Importin repeat 6
  5. XM_024449346.1XP_024305114.1  importin-5 isoform X1

    Related
    ENSP00000261574.5, ENST00000261574.10
    Conserved Domains (6) summary
    COG5215
    Location:31652
    KAP95; Karyopherin (importin) beta [Intracellular trafficking and secretion]
    sd00044
    Location:373405
    HEAT; HEAT repeat [structural motif]
    pfam13513
    Location:939984
    HEAT_EZ; HEAT-like repeat
    pfam18808
    Location:286375
    Importin_rep_4; Importin repeat
    pfam18816
    Location:10231069
    Importin_rep_5; Importin repeat
    pfam18829
    Location:783892
    Importin_rep_6; Importin repeat 6
  6. XM_005254052.3XP_005254109.1  importin-5 isoform X1

    See identical proteins and their annotated locations for XP_005254109.1

    UniProtKB/Swiss-Prot
    O00410
    Conserved Domains (6) summary
    COG5215
    Location:31652
    KAP95; Karyopherin (importin) beta [Intracellular trafficking and secretion]
    sd00044
    Location:373405
    HEAT; HEAT repeat [structural motif]
    pfam13513
    Location:939984
    HEAT_EZ; HEAT-like repeat
    pfam18808
    Location:286375
    Importin_rep_4; Importin repeat
    pfam18816
    Location:10231069
    Importin_rep_5; Importin repeat
    pfam18829
    Location:783892
    Importin_rep_6; Importin repeat 6
  7. XM_011521090.2XP_011519392.1  importin-5 isoform X1

    See identical proteins and their annotated locations for XP_011519392.1

    UniProtKB/Swiss-Prot
    O00410
    Conserved Domains (6) summary
    COG5215
    Location:31652
    KAP95; Karyopherin (importin) beta [Intracellular trafficking and secretion]
    sd00044
    Location:373405
    HEAT; HEAT repeat [structural motif]
    pfam13513
    Location:939984
    HEAT_EZ; HEAT-like repeat
    pfam18808
    Location:286375
    Importin_rep_4; Importin repeat
    pfam18816
    Location:10231069
    Importin_rep_5; Importin repeat
    pfam18829
    Location:783892
    Importin_rep_6; Importin repeat 6
  8. XM_005254053.3XP_005254110.1  importin-5 isoform X1

    See identical proteins and their annotated locations for XP_005254110.1

    UniProtKB/Swiss-Prot
    O00410
    Conserved Domains (6) summary
    COG5215
    Location:31652
    KAP95; Karyopherin (importin) beta [Intracellular trafficking and secretion]
    sd00044
    Location:373405
    HEAT; HEAT repeat [structural motif]
    pfam13513
    Location:939984
    HEAT_EZ; HEAT-like repeat
    pfam18808
    Location:286375
    Importin_rep_4; Importin repeat
    pfam18816
    Location:10231069
    Importin_rep_5; Importin repeat
    pfam18829
    Location:783892
    Importin_rep_6; Importin repeat 6
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