C0LLJ0
SS
Gene name |
Kpna7 |
Protein name |
Importin subunit alpha-8 |
Names |
Karyopherin subunit alpha-7 |
Species |
Mus musculus (Mouse) |
KEGG Pathway |
mmu:381686 |
EC number |
|
Protein Class |
|
Descriptions
Importin-α is a nuclear import receptor that facilitates the transport of proteins with nuclear localization sequences (NLSs) into the nucleus. It is autoinhibited by its N-terminal region, which occupies the NLS-binding site, preventing unnecessary binding and import activity. Importin-α is autoinhibited in the absence of importin-β and the binding of importin-β alleviates this autoinhibition, which displaces the autoinhibitory sequence.
Autoinhibitory domains (AIDs)
Target domain |
134-226 (Major NLS-binding site);303-390 (Minor NLS-binding site) |
Relief mechanism |
Partner binding |
Assay |
|
Accessory elements
No accessory elements
References
- Fontes MR et al. (2000) "Structural basis of recognition of monopartite and bipartite nuclear localization sequences by mammalian importin-alpha", Journal of molecular biology, 297, 1183-94
- Fontes MR et al. (2003) "Structural basis for the specificity of bipartite nuclear localization sequence binding by importin-alpha", The Journal of biological chemistry, 278, 27981-7
- Catimel B et al. (2001) "Biophysical characterization of interactions involving importin-alpha during nuclear import", The Journal of biological chemistry, 276, 34189-98
- Pumroy RA et al. (2015) "Molecular determinants for nuclear import of influenza A PB2 by importin α isoforms 3 and 7", Structure (London, England : 1993), 23, 374-84
- Kimoto C et al. (2015) "Functional characterization of importin α8 as a classical nuclear localization signal receptor", Biochimica et biophysica acta, 1853, 2676-83
- Kobe B (1999) "Autoinhibition by an internal nuclear localization signal revealed by the crystal structure of mammalian importin alpha", Nature structural biology, 6, 388-97
- Miyatake H et al. (2015) "Crystal structure of human importin-α1 (Rch1), revealing a potential autoinhibition mode involving homodimerization", PloS one, 10, e0115995
Autoinhibited structure
Activated structure
1 structures for C0LLJ0
| Entry ID | Method | Resolution | Chain | Position | Source |
|---|---|---|---|---|---|
| AF-C0LLJ0-F1 | Predicted | AlphaFoldDB |
30 variants for C0LLJ0
| Variant ID(s) | Position | Change | Description | Diseaes Association | Provenance |
|---|---|---|---|---|---|
| rs3388803079 | 12 | K>R | No | EVA | |
| rs3543929878 | 29 | I>M | No | EVA | |
| rs3543895371 | 36 | R>W | No | EVA | |
| rs33261930 | 50 | I>N | No | EVA | |
| rs37351559 | 53 | F>I | No | EVA | |
| rs3388803387 | 54 | S>Y | No | EVA | |
| rs230667167 | 76 | A>G | No | EVA | |
| rs3396400833 | 85 | H>Q | No | EVA | |
| rs3396357462 | 85 | H>RGTWQPG* | No | EVA | |
| rs252661957 | 96 | I>L | No | EVA | |
| rs249003408 | 122 | A>V | No | EVA | |
| rs3388805003 | 131 | E>D | No | EVA | |
| rs235277986 | 191 | C>R | No | EVA | |
| rs1133934196 | 238 | R>Q | No | EVA | |
| rs3388801159 | 239 | Q>H | No | EVA | |
| rs3388803046 | 239 | Q>R | No | EVA | |
| rs3396309361 | 282 | I>S | No | EVA | |
| rs1134610444 | 287 | V>I | No | EVA | |
| rs261600869 | 337 | T>A | No | EVA | |
| rs3412991813 | 435 | L>H | No | EVA | |
| rs3388790027 | 446 | R>S | No | EVA | |
| rs3388810022 | 446 | R>W | No | EVA | |
| rs3388809119 | 455 | G>R | No | EVA | |
| rs3413066197 | 463 | L>V | No | EVA | |
| rs234492244 | 469 | I>N | No | EVA | |
| rs3388809094 | 473 | N>K | No | EVA | |
| rs3388809127 | 474 | S>G | No | EVA | |
| rs3388808792 | 484 | C>Y | No | EVA | |
| rs218229298 | 491 | S>G | No | EVA | |
| rs1131953532 | 496 | G>R | No | EVA |
No associated diseases with C0LLJ0
9 regional properties for C0LLJ0
| Type | Name | Position | InterPro Accession |
|---|---|---|---|
| repeat | Armadillo | 100 - 183 | IPR000225-1 |
| repeat | Armadillo | 185 - 226 | IPR000225-2 |
| repeat | Armadillo | 229 - 268 | IPR000225-3 |
| repeat | Armadillo | 270 - 310 | IPR000225-4 |
| repeat | Armadillo | 312 - 352 | IPR000225-5 |
| repeat | Armadillo | 354 - 393 | IPR000225-6 |
| repeat | Armadillo | 396 - 436 | IPR000225-7 |
| domain | Importin-alpha, importin-beta-binding domain | 1 - 89 | IPR002652 |
| repeat | Atypical Arm repeat | 448 - 491 | IPR032413 |
6 GO annotations of cellular component
| Name | Definition |
|---|---|
| cytosol | The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. |
| female germ cell nucleus | The nucleus of the female germ cell, a reproductive cell in females. |
| NLS-dependent protein nuclear import complex | A dimer consisting of an alpha and a beta-subunit that imports proteins with an NLS into the nucleus through a nuclear pore. |
| nucleoplasm | That part of the nuclear content other than the chromosomes or the nucleolus. |
| nucleus | A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. |
| spindle | The array of microtubules and associated molecules that forms between opposite poles of a eukaryotic cell during mitosis or meiosis and serves to move the duplicated chromosomes apart. |
2 GO annotations of molecular function
| Name | Definition |
|---|---|
| nuclear import signal receptor activity | Combining with a nuclear import signal (NIS) on a cargo to be transported, to mediate transport of the cargo through the nuclear pore, from the cytoplasm to the nuclear lumen. The cargo can be either a RNA or a protein. |
| nuclear localization sequence binding | Binding to a nuclear localization sequence, a specific peptide sequence that acts as a signal to localize the protein within the nucleus. |
6 GO annotations of biological process
| Name | Definition |
|---|---|
| blastocyst development | The process whose specific outcome is the progression of the blastocyst over time, from its formation to the mature structure. The mammalian blastocyst is a hollow ball of cells containing two cell types, the inner cell mass and the trophectoderm. |
| epigenetic regulation of gene expression | A process that modulates the frequency, rate or extent of gene expression through chromatin remodelling either by modifying higher order chromatin fiber structure, nucleosomal histones, or the DNA. Once established, this regulation may be maintained over many cell divisions. It can also be heritable in the absence of the instigating signal. |
| negative regulation of gene expression | Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product (protein or RNA). |
| NLS-bearing protein import into nucleus | The directed movement of a protein bearing a nuclear localization signal (NLS) from the cytoplasm into the nucleus, across the nuclear envelope. |
| positive regulation of gene expression | Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product (protein or RNA). |
| protein import into nucleus | The directed movement of a protein from the cytoplasm to the nucleus. |
30 homologous proteins in AiPD
| UniProt AC | Gene Name | Protein Name | Species | Evidence Code |
|---|---|---|---|---|
| Q02821 | SRP1 | Importin subunit alpha | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | SS |
| Q0V7M0 | KPNA6 | Importin subunit alpha-7 | Bos taurus (Bovine) | SS |
| A2VE08 | KPNA1 | Importin subunit alpha-5 | Bos taurus (Bovine) | SS |
| C1JZ66 | KPNA7 | Importin subunit alpha-8 | Bos taurus (Bovine) | PR |
| Q5ZML1 | KPNA1 | Importin subunit alpha-5 | Gallus gallus (Chicken) | SS |
| P52295 | Pen | Importin subunit alpha | Drosophila melanogaster (Fruit fly) | SS |
| P52294 | KPNA1 | Importin subunit alpha-5 | Homo sapiens (Human) | SS |
| O15131 | KPNA5 | Importin subunit alpha-6 | Homo sapiens (Human) | SS |
| O60684 | KPNA6 | Importin subunit alpha-7 | Homo sapiens (Human) | SS |
| O00505 | KPNA3 | Importin subunit alpha-4 | Homo sapiens (Human) | SS |
| O00629 | KPNA4 | Importin subunit alpha-3 | Homo sapiens (Human) | SS |
| P52292 | KPNA2 | Importin subunit alpha-1 | Homo sapiens (Human) | EV |
| A9QM74 | KPNA7 | Importin subunit alpha-8 | Homo sapiens (Human) | EV |
| P52293 | Kpna2 | Importin subunit alpha-1 | Mus musculus (Mouse) | EV |
| O35343 | Kpna4 | Importin subunit alpha-3 | Mus musculus (Mouse) | SS |
| O35344 | Kpna3 | Importin subunit alpha-4 | Mus musculus (Mouse) | SS |
| Q60960 | Kpna1 | Importin subunit alpha-5 | Mus musculus (Mouse) | SS |
| O35345 | Kpna6 | Importin subunit alpha-7 | Mus musculus (Mouse) | PR |
| C6K7I2 | KPNA7 | Importin subunit alpha-8 | Sus scrofa (Pig) | SS |
| P83953 | Kpna1 | Importin subunit alpha-5 | Rattus norvegicus (Rat) | SS |
| Q56R16 | Kpna5 | Importin subunit alpha-6 | Rattus norvegicus (Rat) | SS |
| Q71VM4 | Os01g0253300 | Importin subunit alpha-1a | Oryza sativa subsp. japonica (Rice) | SS |
| Q19969 | ima-3 | Importin subunit alpha-3 | Caenorhabditis elegans | SS |
| P91276 | ima-2 | Importin subunit alpha-2 | Caenorhabditis elegans | SS |
| O04294 | IMPA3 | Importin subunit alpha-3 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q9M9X7 | IMPA7 | Importin subunit alpha-7 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q9FJ09 | IMPA5 | Importin subunit alpha-5 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q9FWY7 | IMPA6 | Importin subunit alpha-6 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| O22478 | Importin subunit alpha | Solanum lycopersicum (Tomato) (Lycopersicon esculentum) | SS | |
| Q503E9 | kpna5 | Importin subunit alpha-6 | Danio rerio (Zebrafish) (Brachydanio rerio) | SS |
| 10 | 20 | 30 | 40 | 50 | 60 |
| MATSKAPKER | LKNYKYRGKE | MSLPRQQRIA | SSLQLRKTRK | DEQVLKRRNI | DLFSSDMVSQ |
| 70 | 80 | 90 | 100 | 110 | 120 |
| ALVKEVNFTL | DDIIQAVNSS | DPILHFRATR | AAREMISQEN | TPPLNLIIEA | GLIPKLVDFL |
| 130 | 140 | 150 | 160 | 170 | 180 |
| KATPHPKLQF | EAAWVLTNIA | SGTSEQTRAV | VKEGAIQPLI | ELLCSPHLTV | SEQAVWALGN |
| 190 | 200 | 210 | 220 | 230 | 240 |
| IAGDCAEFRD | CVISNNAIPH | LINLISKGIP | ITFLRNISWT | LSNLCRNKDP | YPSESAVRQM |
| 250 | 260 | 270 | 280 | 290 | 300 |
| LPPLCQLLLH | RDNEILADTC | WALSYLTKGG | KEYIHHVVTT | GILPRLVELM | TSSELSISIP |
| 310 | 320 | 330 | 340 | 350 | 360 |
| CLHTIGNIVA | GTDEQTQMAI | DAGMLKVLGQ | VLKHPKTSIQ | VLAAWTMSNV | AAGPRHQVEQ |
| 370 | 380 | 390 | 400 | 410 | 420 |
| LLCNLLPILV | DLLRNAELKV | QKEVVCTVIN | IATGASQDQL | TLLAHSGILE | PMLSLLSAPD |
| 430 | 440 | 450 | 460 | 470 | 480 |
| LEVVIIVLDI | ISYLLQHIDN | LQEKKRLYFQ | IEKFGGFEKI | ECLQHHHNIS | ISNSALDIIE |
| 490 | |||||
| KYFCEDGDGD | SLPGPGLRV |