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

231-268 (Nucleolar targeting region)

Relief mechanism

Others

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for P22953

Entry ID Method Resolution Chain Position Source
AF-P22953-F1 Predicted AlphaFoldDB

12 variants for P22953

Variant ID(s) Position Change Description Diseaes Association Provenance
tmp_5_556328_C_A 3 G>C No 1000Genomes
tmp_5_556159_T_G 59 K>T No 1000Genomes
tmp_5_555709_G_A 101 P>L No 1000Genomes
ENSVATH13885013 113 G>C No 1000Genomes
ENSVATH13885011 141 V>F No 1000Genomes
tmp_5_555407_G_A 202 L>F No 1000Genomes
ENSVATH13885008 525 V>I No 1000Genomes
ENSVATH06909555 530 K>N No 1000Genomes
ENSVATH06909554 537 E>D No 1000Genomes
tmp_5_554108_C_T 635 D>N No 1000Genomes
tmp_5_554104_G_A 636 A>V No 1000Genomes
tmp_5_554089_C_T 641 G>D No 1000Genomes

No associated diseases with P22953

3 regional properties for P22953

Type Name Position InterPro Accession
conserved_site Heat shock protein 70, conserved site 12 - 19 IPR018181-1
conserved_site Heat shock protein 70, conserved site 203 - 216 IPR018181-2
conserved_site Heat shock protein 70, conserved site 340 - 354 IPR018181-3

Functions

Description
EC Number
Subcellular Localization
  • Cytoplasm, cytosol
  • Nucleus
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

12 GO annotations of cellular component

Name Definition
apoplast The cell membranes and intracellular regions in a plant are connected through plasmodesmata, and plants may be described as having two major compartments
chloroplast A chlorophyll-containing plastid with thylakoids organized into grana and frets, or stroma thylakoids, and embedded in a stroma.
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.
cytosolic ribosome A ribosome located in the cytosol.
Golgi apparatus A membrane-bound cytoplasmic organelle of the endomembrane system that further processes the core oligosaccharides (e.g. N-glycans) added to proteins in the endoplasmic reticulum and packages them into membrane-bound vesicles. The Golgi apparatus operates at the intersection of the secretory, lysosomal, and endocytic pathways.
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.
plant-type cell wall A more or less rigid stucture lying outside the cell membrane of a cell and composed of cellulose and pectin and other organic and inorganic substances.
plant-type vacuole A closed structure that is completely surrounded by a unit membrane, contains liquid, and retains the same shape regardless of cell cycle phase. An example of this structure is found in Arabidopsis thaliana.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
plasmodesma A fine cytoplasmic channel, found in all higher plants, that connects the cytoplasm of one cell to that of an adjacent cell.

4 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
ATP-dependent protein folding chaperone Binding to a protein or a protein-containing complex to assist the protein folding process, driven by ATP hydrolysis.
mRNA binding Binding to messenger RNA (mRNA), an intermediate molecule between DNA and protein. mRNA includes UTR and coding sequences, but does not contain introns.
protease binding Binding to a protease or a peptidase.

8 GO annotations of biological process

Name Definition
defense response to bacterium Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
defense response to fungus Reactions triggered in response to the presence of a fungus that act to protect the cell or organism.
defense response to other organism Reactions triggered in response to the presence of another organism that act to protect the cell or organism from damage caused by that organism.
heat acclimation Any process that increases heat tolerance of an organism in response to high temperatures.
negative regulation of seed germination Any process that stops, prevents, or reduces the frequency, rate or extent of seed germination.
response to heat Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a heat stimulus, a temperature stimulus above the optimal temperature for that organism.
response to virus Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus from a virus.
stomatal closure The process of closing of stomata, pores in the epidermis of leaves and stems bordered by two guard cells and serving in gas exchange.

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
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
Q27975 HSPA1A Heat shock 70 kDa protein 1A Bos taurus (Bovine) SS
E1C2P3 HSPA14 Heat shock 70 kDa protein 14 Gallus gallus (Chicken) SS
O73885 HSPA8 Heat shock cognate 71 kDa protein Gallus gallus (Chicken) SS
P08106 Heat shock 70 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
O43301 HSPA12A Heat shock 70 kDa protein 12A Homo sapiens (Human) PR
Q0VDF9 HSPA14 Heat shock 70 kDa protein 14 Homo sapiens (Human) SS
P0DMV9 HSPA1B Heat shock 70 kDa protein 1B Homo sapiens (Human) SS
P0DMV8 HSPA1A Heat shock 70 kDa protein 1A Homo sapiens (Human) SS
P17066 HSPA6 Heat shock 70 kDa protein 6 Homo sapiens (Human) SS
P34931 HSPA1L Heat shock 70 kDa protein 1-like 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
Q99M31 Hspa14 Heat shock 70 kDa protein 14 Mus musculus (Mouse) SS
Q8K0U4 Hspa12a Heat shock 70 kDa protein 12A Mus musculus (Mouse) PR
Q9CZJ2 Hspa12b Heat shock 70 kDa protein 12B Mus musculus (Mouse) PR
P16627 Hspa1l Heat shock 70 kDa protein 1-like Mus musculus (Mouse) SS
P17156 Hspa2 Heat shock-related 70 kDa protein 2 Mus musculus (Mouse) SS
P17879 Hspa1b Heat shock 70 kDa protein 1B Mus musculus (Mouse) SS
P63017 Hspa8 Heat shock cognate 71 kDa protein Mus musculus (Mouse) SS
Q61696 Hspa1a Heat shock 70 kDa protein 1A Mus musculus (Mouse) SS
Q6S4N2 HSPA1B Heat shock 70 kDa protein 1B Sus scrofa (Pig) SS
P0DMW0 Hspa1a Heat shock 70 kDa protein 1A Rattus norvegicus (Rat) SS
P0DMW1 Hspa1b Heat shock 70 kDa protein 1B Rattus norvegicus (Rat) SS
P14659 Hspa2 Heat shock-related 70 kDa protein 2 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
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
Q90473 hspa8 Heat shock cognate 71 kDa protein Danio rerio (Zebrafish) (Brachydanio rerio) SS
10 20 30 40 50 60
MSGKGEGPAI GIDLGTTYSC VGVWQHDRVE IIANDQGNRT TPSYVAFTDS ERLIGDAAKN
70 80 90 100 110 120
QVAMNPVNTV FDAKRLIGRR FSDSSVQSDM KLWPFKIQAG PADKPMIYVE YKGEEKEFAA
130 140 150 160 170 180
EEISSMVLIK MREIAEAYLG VTIKNAVVTV PAYFNDSQRQ ATKDAGVIAG LNVMRIINEP
190 200 210 220 230 240
TAAAIAYGLD KKATSVGEKN VLIFDLGGGT FDVSLLTIEE GIFEVKATAG DTHLGGEDFD
250 260 270 280 290 300
NRMVNHFVQE FKRKSKKDIT GNPRALRRLR TSCERAKRTL SSTAQTTIEI DSLYEGIDFY
310 320 330 340 350 360
STITRARFEE LNMDLFRKCM EPVEKCLRDA KMDKSTVHDV VLVGGSTRIP KVQQLLQDFF
370 380 390 400 410 420
NGKELCKSIN PDEAVAYGAA VQGAILSGEG NEKVQDLLLL DVTPLSLGLE TAGGVMTTLI
430 440 450 460 470 480
PRNTTIPTKK EQVFSTYSDN QPGVLIQVYE GERARTKDNN LLGKFELSGI PPAPRGVPQI
490 500 510 520 530 540
TVCFDIDANG ILNVSAEDKT TGQKNKITIT NDKGRLSKDE IEKMVQEAEK YKSEDEEHKK
550 560 570 580 590 600
KVEAKNALEN YAYNMRNTIQ DEKIGEKLPA ADKKKIEDSI EQAIQWLEGN QLAEADEFED
610 620 630 640 650
KMKELESICN PIIAKMYQGA GGEAGGPGAS GMDDDAPPAS GGAGPKIEEV D