Descriptions
HSPA8 (or hsc70) is a heat shock cognate protein involved in many cellular processes. During recovery from stress, HSPA8, initially accumulating in the nucleoplasm for folding/refolding of proteins, transiently concentrates in nucleoli for nucleolar morphology and function restoration. The inhibitory region is positioned at one of the three domains of HSPA8 protein, which is the N-terminal ATPase domain, specifically in residues 263-287 of domain IIB. Under normal growth conditions, the constitutive nucleolar targeting function that is provided by residues 225-262 is diminished by the autoinhibitory element located in residues 263-287. When cells recover from stress, the autoinhibitory element is inactivated, and the constitutive nucleolar targeting function restores.
Autoinhibitory domains (AIDs)
Target domain |
225-262 (Nucleolar targeting region) |
Relief mechanism |
Others |
Assay |
|
Accessory elements
No accessory elements
Autoinhibited structure
Activated structure
1 structures for Q90473
| Entry ID | Method | Resolution | Chain | Position | Source |
|---|---|---|---|---|---|
| AF-Q90473-F1 | Predicted | AlphaFoldDB |
No variants for Q90473
| Variant ID(s) | Position | Change | Description | Diseaes Association | Provenance |
|---|---|---|---|---|---|
| No variants for Q90473 | |||||
No associated diseases with Q90473
3 regional properties for Q90473
| Type | Name | Position | InterPro Accession |
|---|---|---|---|
| conserved_site | Heat shock protein 70, conserved site | 9 - 16 | IPR018181-1 |
| conserved_site | Heat shock protein 70, conserved site | 197 - 210 | IPR018181-2 |
| conserved_site | Heat shock protein 70, conserved site | 334 - 348 | IPR018181-3 |
Functions
11 GO annotations of cellular component
| Name | Definition |
|---|---|
| autophagosome | A double-membrane-bounded compartment that engulfs endogenous cellular material as well as invading microorganisms to target them to the lytic vacuole/lysosome for degradation as part of macroautophagy. |
| cytoplasm | The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. |
| cytosol | The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. |
| dendrite | A neuron projection that has a short, tapering, morphology. Dendrites receive and integrate signals from other neurons or from sensory stimuli, and conduct nerve impulses towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body. |
| lysosomal membrane | The lipid bilayer surrounding the lysosome and separating its contents from the cell cytoplasm. |
| nucleolus | A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome. |
| 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. |
| plasma membrane | The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. |
| postsynaptic cytosol | The region of the cytosol consisting of all cytosol that is part of the postsynapse. |
| presynaptic cytosol | The region of the cytosol consisting of all cytosol that is part of the presynapse. |
| terminal bouton | Terminal inflated portion of the axon, containing the specialized apparatus necessary to release neurotransmitters. The axon terminus is considered to be the whole region of thickening and the terminal bouton is a specialized region of it. |
7 GO annotations of molecular function
| Name | Definition |
|---|---|
| ATP binding | Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator. |
| ATP hydrolysis activity | Catalysis of the reaction |
| ATP-dependent protein folding chaperone | Binding to a protein or a protein-containing complex to assist the protein folding process, driven by ATP hydrolysis. |
| clathrin-uncoating ATPase activity | Catalysis of the reaction |
| heat shock protein binding | Binding to a heat shock protein, a protein synthesized or activated in response to heat shock. |
| protein folding chaperone | Binding to a protein or a protein-containing complex to assist the protein folding process. |
| protein-macromolecule adaptor activity | The binding activity of a protein that brings together two or more macromolecules in contact, permitting those molecules to function in a coordinated way. The adaptor can bring together two proteins, or a protein and another macromolecule such as a lipid or a nucleic acid. |
11 GO annotations of biological process
| Name | Definition |
|---|---|
| chaperone cofactor-dependent protein refolding | The process of assisting in the correct posttranslational noncovalent assembly of proteins, which is dependent on additional protein cofactors. This process occurs over one or several cycles of nucleotide hydrolysis-dependent binding and release. |
| chaperone-mediated autophagy translocation complex disassembly | The disaggregation of a chaperone-mediated autophagy translocation complex into its constituent components. |
| clathrin coat disassembly | The disaggregation of a clathrin coat into its constituent components; results in stripping or removing the clathrin coat from clathrin-coated vesicles (CCV) before fusing with their targets. CVVs transport cargo from plasma membrane and trans-Golgi to the endosomal system. |
| fin regeneration | The regrowth of fin tissue following its loss or destruction. |
| late endosomal microautophagy | The autophagy process by which cytosolic proteins targeted for degradation are tagged with a chaperone and are directly transferred into and degraded in a late endosomal compartment. |
| positive regulation of receptor-mediated endocytosis | Any process that activates or increases the frequency, rate or extent of receptor mediated endocytosis, the uptake of external materials by cells, utilizing receptors to ensure specificity of transport. |
| protein localization to early endosome | A process in which a protein is transported to, or maintained in, a location within an early endosome. |
| protein refolding | The process carried out by a cell that restores the biological activity of an unfolded or misfolded protein, using helper proteins such as chaperones. |
| protein targeting to lysosome involved in chaperone-mediated autophagy | The targeting of a protein to the lysosome process in which an input protein binds to a chaperone and subsequently to a lysosomal receptor. |
| regulation of fibroblast growth factor receptor signaling pathway | Any process that modulates the frequency, rate or extent of fibroblast growth factor receptor signaling pathway activity. |
| slow axonal transport | The directed slow movement of non-membranous molecules in nerve cell axons. It is comprised of a Slow Component a (SCa) and a Slow Component b (SCb) which differ in transport rates and protein composition. |
61 homologous proteins in AiPD
| UniProt AC | Gene Name | Protein Name | Species | Evidence Code |
|---|---|---|---|---|
| P11484 | SSB1 | Ribosome-associated molecular chaperone SSB1 | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | SS |
| P40150 | SSB2 | Ribosome-associated molecular chaperone SSB2 | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | SS |
| P22202 | SSA4 | Heat shock protein SSA4 | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | SS |
| P09435 | SSA3 | Heat shock protein SSA3 | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | SS |
| P10592 | SSA2 | Heat shock protein SSA2 | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | SS |
| P10591 | SSA1 | Heat shock protein SSA1 | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | SS |
| Q27975 | HSPA1A | Heat shock 70 kDa protein 1A | Bos taurus (Bovine) | SS |
| Q2YDD0 | HSPA14 | Heat shock 70 kDa protein 14 | Bos taurus (Bovine) | SS |
| P0CB32 | HSPA1L | Heat shock 70 kDa protein 1-like | Bos taurus (Bovine) | SS |
| P19120 | HSPA8 | Heat shock cognate 71 kDa protein | Bos taurus (Bovine) | SS |
| E1C2P3 | HSPA14 | Heat shock 70 kDa protein 14 | Gallus gallus (Chicken) | SS |
| P08106 | Heat shock 70 kDa protein | Gallus gallus (Chicken) | SS | |
| O73885 | HSPA8 | Heat shock cognate 71 kDa protein | Gallus gallus (Chicken) | SS |
| P77319 | hscC | Chaperone protein HscC | Escherichia coli (strain K12) | PR |
| P0A6Y8 | dnaK | Chaperone protein DnaK | Escherichia coli (strain K12) | SS |
| P02825 | Hsp70Ab | Major heat shock 70 kDa protein Ab | Drosophila melanogaster (Fruit fly) | SS |
| P82910 | Hsp70Aa | Major heat shock 70 kDa protein Aa | Drosophila melanogaster (Fruit fly) | SS |
| Q9VG58 | Hsp70Bbb | Major heat shock 70 kDa protein Bbb | Drosophila melanogaster (Fruit fly) | SS |
| Q9BIR7 | Hsp70Bc | Major heat shock 70 kDa protein Bc | Drosophila melanogaster (Fruit fly) | SS |
| Q8INI8 | Hsp70Ba | Major heat shock 70 kDa protein Ba | Drosophila melanogaster (Fruit fly) | SS |
| Q9BIS2 | Hsp70Bb | Major heat shock 70 kDa protein Bb | Drosophila melanogaster (Fruit fly) | SS |
| P11146 | Hsc70-2 | Heat shock 70 kDa protein cognate 2 | Drosophila melanogaster (Fruit fly) | SS |
| O97125 | Hsp68 | Heat shock protein 68 | Drosophila melanogaster (Fruit fly) | SS |
| P11147 | Hsc70-4 | Heat shock 70 kDa protein cognate 4 | Drosophila melanogaster (Fruit fly) | SS |
| P29843 | Hsc70-1 | Heat shock 70 kDa protein cognate 1 | Drosophila melanogaster (Fruit fly) | SS |
| A2Q0Z1 | HSPA8 | Heat shock cognate 71 kDa protein | Equus caballus (Horse) | SS |
| Q96MM6 | HSPA12B | Heat shock 70 kDa protein 12B | Homo sapiens (Human) | PR |
| P17066 | HSPA6 | Heat shock 70 kDa protein 6 | Homo sapiens (Human) | SS |
| O43301 | HSPA12A | Heat shock 70 kDa protein 12A | Homo sapiens (Human) | PR |
| P0DMV9 | HSPA1B | Heat shock 70 kDa protein 1B | Homo sapiens (Human) | SS |
| P0DMV8 | HSPA1A | Heat shock 70 kDa protein 1A | Homo sapiens (Human) | SS |
| P34931 | HSPA1L | Heat shock 70 kDa protein 1-like | Homo sapiens (Human) | SS |
| Q0VDF9 | HSPA14 | Heat shock 70 kDa protein 14 | Homo sapiens (Human) | SS |
| P54652 | HSPA2 | Heat shock-related 70 kDa protein 2 | Homo sapiens (Human) | SS |
| P11142 | HSPA8 | Heat shock cognate 71 kDa protein | Homo sapiens (Human) | EV |
| P11143 | HSP70 | Heat shock 70 kDa protein | Zea mays (Maize) | SS |
| P16627 | Hspa1l | Heat shock 70 kDa protein 1-like | Mus musculus (Mouse) | SS |
| Q99M31 | Hspa14 | Heat shock 70 kDa protein 14 | Mus musculus (Mouse) | SS |
| Q8K0U4 | Hspa12a | Heat shock 70 kDa protein 12A | Mus musculus (Mouse) | PR |
| P17156 | Hspa2 | Heat shock-related 70 kDa protein 2 | Mus musculus (Mouse) | SS |
| Q61696 | Hspa1a | Heat shock 70 kDa protein 1A | Mus musculus (Mouse) | SS |
| Q9CZJ2 | Hspa12b | Heat shock 70 kDa protein 12B | Mus musculus (Mouse) | PR |
| P17879 | Hspa1b | Heat shock 70 kDa protein 1B | Mus musculus (Mouse) | SS |
| P63017 | Hspa8 | Heat shock cognate 71 kDa protein | Mus musculus (Mouse) | SS |
| Q6S4N2 | HSPA1B | Heat shock 70 kDa protein 1B | Sus scrofa (Pig) | SS |
| P14659 | Hspa2 | Heat shock-related 70 kDa protein 2 | Rattus norvegicus (Rat) | SS |
| P0DMW1 | Hspa1b | Heat shock 70 kDa protein 1B | Rattus norvegicus (Rat) | SS |
| P0DMW0 | Hspa1a | Heat shock 70 kDa protein 1A | Rattus norvegicus (Rat) | SS |
| P55063 | Hspa1l | Heat shock 70 kDa protein 1-like | Rattus norvegicus (Rat) | SS |
| P63018 | Hspa8 | Heat shock cognate 71 kDa protein | Rattus norvegicus (Rat) | SS |
| P09446 | hsp-1 | Heat shock protein hsp-1 | Caenorhabditis elegans | SS |
| P26413 | HSP70 | Heat shock 70 kDa protein | Glycine max (Soybean) (Glycine hispida) | SS |
| O65719 | HSP70-3 | Heat shock 70 kDa protein 3 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| P22953 | HSP70-1 | Heat shock 70 kDa protein 1 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| P22954 | HSP70-2 | Heat shock 70 kDa protein 2 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q9C7X7 | HSP70-18 | Heat shock 70 kDa protein 18 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q9LHA8 | HSP70-4 | Heat shock 70 kDa protein 4 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q9S9N1 | HSP70-5 | Heat shock 70 kDa protein 5 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| P24629 | HSC-I | Heat shock cognate 70 kDa protein 1 | Solanum lycopersicum (Tomato) (Lycopersicon esculentum) | SS |
| P27322 | HSC-2 | Heat shock cognate 70 kDa protein 2 | Solanum lycopersicum (Tomato) (Lycopersicon esculentum) | SS |
| Q5RGE6 | hspa14 | Heat shock 70 kDa protein 14 | Danio rerio (Zebrafish) (Brachydanio rerio) | SS |
| 10 | 20 | 30 | 40 | 50 | 60 |
| MSKGPAVGID | LGTTYSCVGV | FQHGKVEIIA | NDQGNRTTPS | YVAFTDTERL | IGDAAKNQVA |
| 70 | 80 | 90 | 100 | 110 | 120 |
| MNPTNTVLDA | NRLNGRQFDD | GVVQSDMKHW | PFNVINDNSR | PKVQVEYKGE | SKSFYPEEIS |
| 130 | 140 | 150 | 160 | 170 | 180 |
| SMVLTKMKEI | AEAYLGKTVS | NAVITVPAYS | NDSQRQATKD | AGTISGLNVL | VIINEPTAAA |
| 190 | 200 | 210 | 220 | 230 | 240 |
| IAYGLDKKVG | AERNVLIFDL | GGGSFDVSIL | TIEDGIFEVK | STAGDTHLGG | EDFDNRMVNH |
| 250 | 260 | 270 | 280 | 290 | 300 |
| FITEFKRKHK | KDISDNKRAV | RRLRTACERA | KRTLSSSTQA | SIEIDSLYEG | IDFYTSITRA |
| 310 | 320 | 330 | 340 | 350 | 360 |
| RFEELNADLF | RGTLDPVEKA | LRDAKMDKAQ | IHDIVLVGGS | TRIPKIQKLL | QDYFNGKELN |
| 370 | 380 | 390 | 400 | 410 | 420 |
| KSINPDEAVA | YGAAVQAAIL | SGDKSENVQD | LLLLDVTPLS | LGIETAGGVM | TVLIKRNTTI |
| 430 | 440 | 450 | 460 | 470 | 480 |
| PTKQTQTFTT | YSDNQPGVLI | QVYEGERAMT | KDNNLLGKFE | LTGIPPAPRG | VPQIEVTFDI |
| 490 | 500 | 510 | 520 | 530 | 540 |
| DANGIMNVSA | VDKSTGKENK | ITITNDKGRL | SKEDIERMVQ | EAEKYKAEDD | VQRDKVSAKN |
| 550 | 560 | 570 | 580 | 590 | 600 |
| GLESYAFNMK | STVEDEKLKG | KISDEDKQKI | LDKCNEVIGW | LDKNQTAERE | EFEHQQKELE |
| 610 | 620 | 630 | 640 | ||
| KVCNPIITKL | YQSAGGMPGG | MPEGMPGGFP | GAGAAPGGGS | SGPTIEEVD |