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Identification
HMDB Protein ID HMDBP08460
Secondary Accession Numbers
  • 14172
Name Importin subunit alpha-6
Synonyms
  1. Karyopherin subunit alpha-5
Gene Name KPNA5
Protein Type Unknown
Biological Properties
General Function Involved in binding
Specific Function Functions in nuclear protein import as an adapter protein for nuclear receptor KPNB1. Binds specifically and directly to substrates containing either a simple or bipartite NLS motif. Docking of the importin/substrate complex to the nuclear pore complex (NPC) is mediated by KPNB1 through binding to nucleoporin FxFG repeats and the complex is subsequently translocated through the pore by an energy requiring, Ran- dependent mechanism. At the nucleoplasmic side of the NPC, Ran binds to importin-beta and the three components separate and importin-alpha and -beta are re-exported from the nucleus to the cytoplasm where GTP hydrolysis releases Ran from importin. The directionality of nuclear import is thought to be conferred by an asymmetric distribution of the GTP- and GDP-bound forms of Ran between the cytoplasm and nucleus. Mediates nuclear import of STAT1 homodimers and STAT1/STAT2 heterodimers by recognizing non- classical NLSs of STAT1 and STAT2 through ARM repeats 8-9. Recognizes influenza A virus nucleoprotein through ARM repeat 7-9 In vitro, mediates the nuclear import of human cytomegalovirus UL84 by recognizing a non-classical NLS
Pathways Not Available
Reactions Not Available
GO Classification
Component
cell part
intracellular part
cytoplasm
organelle
membrane-bounded organelle
intracellular membrane-bounded organelle
nucleus
nuclear pore
organelle part
intracellular organelle part
nuclear part
Function
binding
protein transporter activity
transporter activity
substrate-specific transporter activity
Process
establishment of localization
transport
protein transport
protein import into nucleus
intracellular protein transport
protein targeting
Cellular Location
  1. Cytoplasm
Gene Properties
Chromosome Location Chromosome:6
Locus 6q22.1
SNPs KPNA5
Gene Sequence
>1611 bp
ATGGCTAGTCCAGGGAAAGATAACTATAGAATGAAAAGTTATAAGAATAAAGCCCTAAAT
CCTCAAGAGATGCGTAGACGAAGAGAAGAAGAAGGAATACAGCTTAGAAAACAAAAAAGA
GAAGAACAGTTGTTCAAACGCAGAAATGTCTATTTGCCCAGAAATGATGAATCTATGCTT
GAAAGTCCTATACAGGATTCAGATATTAGTTCCACTGTACCCATTCCAGAGGAAGGAGTT
GTTACTACAGATATGGTTCAAATGATTTTTTCTAATAATGCTGATCAACAGCTAACAGCA
ACACAGAAATTTAGAAAGCTGCTTTCTAAAGAACCTAATCCACCAATAGATCAAGTTATA
CAGAAACCAGGAGTTGTACAGAGATTTGTGAAATTTCTTGAAAGAAATGAAAATTGCACT
TTACAATTTGAAGCTGCATGGGCATTAACAAATATAGCATCTGGAACTTTTCTGCATACC
AAGGTAGTGATTGAAACTGGGGCTGTTCCGATTTTTATCAAACTTCTTAATTCTGAACAT
GAAGATGTTCAGGAACAGGCTGTTTGGGCACTTGGTAATATTGCTGGTGACAATGCAGAA
TGCAGAGATTTTGTTTTGAATTGTGAAATACTTCCACCTCTTTTAGAGTTATTAACAAAT
TCAAACAGACTCACAACAACAAGAAATGCCGTGTGGGCCCTCTCAAATTTATGTAGAGGC
AAAAACCCTCCTCCAAACTTTAGTAAGGTTTCACCTTGCTTAAATGTCCTGTCACGACTG
TTGTTTAGCAGTGACCCAGATGTGTTAGCAGACGTGTGTTGGGCCCTTTCTTATCTTTCC
GATGGACCCAATGATAAAATTCAAGCAGTCATTGATTCTGGAGTCTGTCGAAGATTGGTG
GAACTTTTGATGCACAATGATTATAAAGTTGTATCACCTGCATTAAGGGCAGTTGGTAAT
ATTGTGACTGGTGATGATATTCAAACACAGGTAATTTTGAATTGTTCTGCATTACCCTGT
CTCTTACATTTATTGAGTAGCCCAAAGGAGTCAATTAGAAAAGAAGCCTGCTGGACTGTT
TCTAACATCACTGCTGGAAATAGAGCTCAGATTCAGGCTGTTATAGATGCAAATATTTTT
CCTGTTTTGATTGAGATTCTTCAGAAAGCAGAGTTTCGTACCAGAAAAGAAGCAGCTTGG
GCTATAACTAATGCAACATCAGGAGGTACTCCAGAGCAAATAAGGTATTTGGTAGCTTTA
GGCTGCATTAAACCACTTTGTGATCTTTTGACTGTTATGGACTCCAAAATAGTCCAAGTG
GCTTTAAATGGACTTGAAAATATTTTACGTCTTGGAGAACAAGAATCTAAGCAGAATGGA
ATAGGCATTAATCCATACTGTGCTCTCATTGAAGAAGCATATGGTCTGGATAAAATTGAG
TTTTTGCAAAGCCATGAAAATCAGGAAATTTACCAGAAGGCATTTGATCTGATTGAACAT
TACTTTGGTGTAGAAGAAGATGACCCCAGCATTGTACCTCAGGTGGATGAAAACCAACAA
CAGTTTATATTTCAGCAGCAGGAAGCACCAATGGATGGATTTCAACTTTAA
Protein Properties
Number of Residues 536
Molecular Weight 60348.4
Theoretical pI 4.8
Pfam Domain Function
Signals
  • None
Transmembrane Regions
  • None
Protein Sequence
>Importin subunit alpha-6
MASPGKDNYRMKSYKNKALNPQEMRRRREEEGIQLRKQKREEQLFKRRNVYLPRNDESML
ESPIQDPDISSTVPIPEEEVVTTDMVQMIFSNNADQQLTATQKFRKLLSKEPNPPIDQVI
QKPGVVQRFVKFLERNENCTLQFEAAWALTNIASGTFLHTKVVIETGAVPIFIKLLNSEH
EDVQEQAVWALGNIAGDNAECRDFVLNCEILPPLLELLTNSNRLTTTRNAVWALSNLCRG
KNPPPNFSKVSPCLNVLSRLLFSSDPDVLADVCWALSYLSDGPNDKIQAVIDSGVCRRLV
ELLMHNDYKVVSPALRAVGNIVTGDDIQTQVILNCSALPCLLHLLSSPKESIRKEACWTV
SNITAGNRAQIQAVIDANIFPVLIEILQKAEFRTRKEAAWAITNATSGGTPEQIRYLVAL
GCIKPLCDLLTVMDSKIVQVALNGLENILRLGEQESKQNGIGINPYCALIEEAYGLDKIE
FLQSHENQEIYQKAFDLIEHYFGVEEDDPSIVPQVDENQQQFIFQQQEAPMDGFQL
GenBank ID Protein 2343116
UniProtKB/Swiss-Prot ID O15131
UniProtKB/Swiss-Prot Entry Name IMA5_HUMAN
PDB IDs Not Available
GenBank Gene ID AF005361
GeneCard ID KPNA5
GenAtlas ID KPNA5
HGNC ID HGNC:6398
References
General References
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