Search :
Sign in or Register  
Welcome Sign in or Don't have an account?Register

HSPA1A

This intronless gene encodes a 70kDa heat shock protein which is a member of the heat shock protein 70 family. In conjuction with other heat shock proteins, this protein stabilizes existing proteins against aggregation and mediates the folding of newly translated proteins in the cytosol and in organelles. It is also involved in the ubiquitin-proteasome pathway through interaction with the AU-rich element RNA-binding protein 1. The gene is located in the major histocompatibility complex class III region, in a cluster with two closely related genes which encode similar proteins. [provided by RefSeq, Jul 2008]
Full Name
Heat Shock Protein Family A (Hsp70) Member 1A
Function
Molecular chaperone implicated in a wide variety of cellular processes, including protection of the proteome from stress, folding and transport of newly synthesized polypeptides, activation of proteolysis of misfolded proteins and the formation and dissociation of protein complexes. Plays a pivotal role in the protein quality control system, ensuring the correct folding of proteins, the re-folding of misfolded proteins and controlling the targeting of proteins for subsequent degradation. This is achieved through cycles of ATP binding, ATP hydrolysis and ADP release, mediated by co-chaperones. The co-chaperones have been shown to not only regulate different steps of the ATPase cycle, but they also have an individual specificity such that one co-chaperone may promote folding of a substrate while another may promote degradation. The affinity for polypeptides is regulated by its nucleotide bound state. In the ATP-bound form, it has a low affinity for substrate proteins. However, upon hydrolysis of the ATP to ADP, it undergoes a conformational change that increases its affinity for substrate proteins. It goes through repeated cycles of ATP hydrolysis and nucleotide exchange, which permits cycles of substrate binding and release. The co-chaperones are of three types: J-domain co-chaperones such as HSP40s (stimulate ATPase hydrolysis by HSP70), the nucleotide exchange factors (NEF) such as BAG1/2/3 (facilitate conversion of HSP70 from the ADP-bound to the ATP-bound state thereby promoting substrate release), and the TPR domain chaperones such as HOPX and STUB1 (PubMed:24012426, PubMed:26865365, PubMed:24318877).

Maintains protein homeostasis during cellular stress through two opposing mechanisms: protein refolding and degradation. Its acetylation/deacetylation state determines whether it functions in protein refolding or protein degradation by controlling the competitive binding of co-chaperones HOPX and STUB1. During the early stress response, the acetylated form binds to HOPX which assists in chaperone-mediated protein refolding, thereafter, it is deacetylated and binds to ubiquitin ligase STUB1 that promotes ubiquitin-mediated protein degradation (PubMed:27708256).

Regulates centrosome integrity during mitosis, and is required for the maintenance of a functional mitotic centrosome that supports the assembly of a bipolar mitotic spindle (PubMed:27137183).

Enhances STUB1-mediated SMAD3 ubiquitination and degradation and facilitates STUB1-mediated inhibition of TGF-beta signaling (PubMed:24613385).

Essential for STUB1-mediated ubiquitination and degradation of FOXP3 in regulatory T-cells (Treg) during inflammation (PubMed:23973223).

Negatively regulates heat shock-induced HSF1 transcriptional activity during the attenuation and recovery phase period of the heat shock response (PubMed:9499401).

Involved in the clearance of misfolded PRDM1/Blimp-1 proteins. Sequesters them in the cytoplasm and promotes their association with SYNV1/HRD1, leading to proteasomal degradation (PubMed:28842558).
(Microbial infection) In case of rotavirus A infection, serves as a post-attachment receptor for the virus to facilitate entry into the cell.
Biological Process
ATP metabolic process Source: BHF-UCL
Cellular heat acclimation Source: UniProtKB
Cellular response to heat Source: UniProtKB
Cellular response to oxidative stress Source: ParkinsonsUK-UCL
Cellular response to steroid hormone stimulus Source: Reactome
Cellular response to unfolded protein Source: ParkinsonsUK-UCL
Chaperone cofactor-dependent protein refolding Source: GO_Central
Chaperone-mediated protein complex assembly Source: CAFA
Lysosomal transport Source: UniProtKB
mRNA catabolic process Source: UniProtKB
Negative regulation of apoptotic process Source: UniProtKB
Negative regulation of cell death Source: UniProtKB
Negative regulation of cell growth Source: UniProtKB
Negative regulation of cell population proliferation Source: UniProtKB
Negative regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway Source: ParkinsonsUK-UCL
Negative regulation of extrinsic apoptotic signaling pathway in absence of ligand Source: BHF-UCL
Negative regulation of inclusion body assembly Source: UniProtKB
Negative regulation of mitochondrial outer membrane permeabilization involved in apoptotic signaling pathway Source: ParkinsonsUK-UCL
Negative regulation of protein ubiquitination Source: ParkinsonsUK-UCL
Negative regulation of transcription from RNA polymerase II promoter in response to stress Source: UniProtKB
Negative regulation of transforming growth factor beta receptor signaling pathway Source: UniProtKB
Positive regulation of endoribonuclease activity Source: ParkinsonsUK-UCL
Positive regulation of erythrocyte differentiation Source: UniProtKB
Positive regulation of gene expression Source: BHF-UCL
Positive regulation of interleukin-8 production Source: UniProtKB
Positive regulation of microtubule nucleation Source: UniProtKB
Positive regulation of NF-kappaB transcription factor activity Source: UniProtKB
Positive regulation of nucleotide-binding oligomerization domain containing 2 signaling pathway Source: UniProtKB
Positive regulation of proteasomal ubiquitin-dependent protein catabolic process Source: UniProtKB
Positive regulation of RNA splicing Source: ParkinsonsUK-UCL
Positive regulation of tumor necrosis factor-mediated signaling pathway Source: UniProtKB
Protein refolding Source: UniProtKB
Protein stabilization Source: CAFA
Regulation of mitotic spindle assembly Source: UniProtKB
Regulation of protein ubiquitination Source: BHF-UCL
Response to unfolded protein Source: UniProtKB
Vesicle-mediated transport Source: GO_Central
Cellular Location
Nucleus; Centrosome; Cytoplasm; Secreted. Localized in cytoplasmic mRNP granules containing untranslated mRNAs.
Involvement in disease
In certain aggressive cases of activated B cell-like diffuse large B-cell lymphoma (ABC-DLBCL), plays a role in the cytoplasmic sequestration of misfolded N-terminal mutated PRDM1 proteins, promotes their association with SYNV1/HRD1 and degradation through the SYNV1-proteasome pathway. HSPA1A inhibition restores PRDM1 nuclear localization and transcriptional activity in lymphoma cell lines and suppresses growth in xenografts.
PTM
In response to cellular stress, acetylated at Lys-77 by NA110 and then gradually deacetylated by HDAC4 at later stages. Acetylation enhances its chaperone activity and also determines whether it will function as a chaperone for protein refolding or degradation by controlling its binding to co-chaperones HOPX and STUB1. The acetylated form and the non-acetylated form bind to HOPX and STUB1 respectively. Acetylation also protects cells against various types of cellular stress.

Anti-HSPA1A antibodies

+ Filters
Loading...
Submit A Review Fig.3 Signaling pathways in cancers. (Creative Biolabs Authorized) Fig.4 Protocols troubleshootings & guides. (Creative Biolabs Authorized) Submit A Review Fig.3 Signaling pathways in cancers. (Creative Biolabs Authorized) Fig.4 Protocols troubleshootings & guides. (Creative Biolabs Authorized)
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: EG1580
Application*: ELISA, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: A294
Application*: IF, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Human, Mouse, Rat
Clone: A293
Application*: WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Human, Pig, Rat
Clone: A292
Application*: ELISA, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Human, Pig
Clone: CAP893
Application*: WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2b, κ
Specificity: Human, Pig
Clone: C7
Application*: ICC, IHC, IP, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Human, Pig
Clone: CAP892
Application*: ICC, IHC, IP, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Dog, Pig, Mouse, Rat
Clone: CB409A
Application*: ELISA, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 5A6
Application*: WB, IHC
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Application*: FC
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 3H5
Application*: FC
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: CBAb128
Application*: WB, IF
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Human, Mouse, Rat
Clone: CBAb127
Application*: WB, IH
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2b
Specificity: Human
Clone: 2A11-F3-G12
Application*: WB, IP
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 2D4-F7-C11
Application*: WB, IC
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Cattle
Clone: CBFYH-3374
Application*: E, IC, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Cat, Cattle, Dog, Goat, Human
Clone: CBFYH-2216
Application*: E, IH, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Chicken, Cattle, Dog, Guinea pig, Hamster, Human, Monkey, Mouse, Rat, Sheep
Clone: CBFYH-2215
Application*: F, C, P, IP, WB
Target: HSPA1A
Host: Rat
Antibody Isotype: IgG1
Specificity: Human, Monkey
Clone: CBFYH-2214
Application*: WB, IP, P, IF, F
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Cattle, Cat, Dog, Goat, Human
Clone: CBFYH-2210
Application*: E, P, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a, κ
Specificity: Human
Clone: CBFYH-2209
Application*: F, IF, P, IP, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a, κ
Specificity: Human
Clone: CBFYH-2208
Application*: E, IH, IP, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Dog, Pig, Mouse, Rat
Clone: CBFYH-2207
Application*: WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Dog, Cattle, Pig, Guinea pig, Mouse, Rat
Clone: CBFYH-2206
Application*: E, WB, IC
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Dog, Monkey
Clone: CBFYH-2204
Application*: F, IF, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYH-2203
Application*: F, IF, P, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Cattle, Dog, Chicken, Fruit Fly, Guinea pig, Hamster, Human, Mouse, Rabbit, Rat, Sheep, Frog, Yeast
Clone: CBFYH-2200
Application*: WB, IP, IH
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Mouse, Rat, Rabbit, Cattle, Chicken, Monkey, Dog, Fruit fly, Pig, Fish, Sheep, Plant, Hamster, C. elegans, Frog
Clone: CBFYH-2198
Application*: WB, P, IP
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Mouse, Rat, Chicken, Fruit fly, Yeast, Frog, Fish
Clone: CBFYH-2197
Application*: WB, P, IF, IP
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Cattle, C. elegans, Chicken, Dog, Fruit fly, Fish, Frog, Guinea pig, Hamster, Human, Monkey, Mouse, Plant, Pig, Rabbit, Rat, Sheep
Clone: CBFYH-2196
Application*: P, IP, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYH-2190
Application*: F, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Human
Clone: CBFYH-2189
Application*: F
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a, κ
Specificity: Human
Clone: CBFYH-2187
Application*: E, IF, P, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Frog, Bird, Fruit fly, Mouse, Human
Clone: CBFYH-2186
Application*: IC, IP, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYH-2185
Application*: IF, IH, IP, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Human, Mouse, Rat
Clone: CBFYH-2178
Application*: WB, IH
Target: HSPA1A
Host: Rabbit
Antibody Isotype: IgG
Specificity: Human, Mouse, Rat
Clone: CBFYH-2177
Application*: WB, P, IF, F
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYH-2175
Application*: F
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a, κ
Specificity: Human
Clone: CBFYH-2174
Application*: E, IH, IP, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYH-2901
Application*: C, IF, IP, P, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYH-3233
Application*: WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Cattle, C. elegans, Chicken, Fruit fly, Guinea pig, Hamster, Human, Plant, Pig, Rabbit, Rat
Clone: CBFYH-3232
Application*: DB, E, IC, IF, C, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2b
Specificity: Human
Clone: CBFYH-3231
Application*: WB, IP
Target: HSPA1A
Host: Rabbit
Antibody Isotype: IgG
Specificity: Human
Clone: CBFYH-2212
Application*: E
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgM
Specificity: Human
Clone: CBFYH-2192
Application*: E, IH, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a, κ
Specificity: Human
Clone: CBFYH-2194
Application*: E, IH, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Human
Clone: CBFYH-2193
Application*: F, IF, IH, IP, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: CBFYH-2188
Application*: E, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Human
Clone: CBFYH-2191
Application*: E, IC, IH, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Mouse, Rat, Amphibians, Chicken, Fish, Yeast, Fruit fly, Bacteria
Clone: CBFYH-2182
Application*: WB, IH, IF, IP
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgM
Specificity: Human, Mouse, Rat, Amphibians, Chicken, Fish, Yeast, Fruit fly
Clone: CBFYH-2180
Application*: WB, IH, IF, IP
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1, κ
Specificity: Human
Clone: 201CT8.2.3
Application*: IF, P, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Mouse, Rat, Cattle, Pig
Clone: CBFYH-2181
Application*: WB, IF, E
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Human, Mouse
Clone: CBFYH-3230
Application*: WB, F, IH, IF, IP, P, EM
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Mouse, Rat, Sheep, Rabbit, Chicken, Guinea pig, Cattle, Dog, Human, Pig, Frog, Fish, Monkey, Plant
Clone: N27F34
Application*: WB, P, F
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG2a
Specificity: Human, Mouse, Rat, Sheep, Dog, Cattle, Fish, Guinea pig, Pig, Hamster, Rabbit, Chicken, Frog, Fruit fly, Yeast
Clone: BB70
Application*: WB, IP, IH
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Mouse, Rat, Amphibian, Chicken, Fish, S. cerevisiae, Fruit fly
Clone: CBFYH-2183
Application*: IC, IF, IH, WB, IP, GS
Target: HSPA1A
Host: Rabbit
Antibody Isotype: IgG
Specificity: Human
Clone: CBFYH-2211
Application*: WB, E, P, F, IF, IP
Target: HSPA1A
Host: Rat
Antibody Isotype: IgG1
Specificity: Human, Monkey
Clone: 6B3
Application*: WB, IP, P, IF (IC), F
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: D1M6J
Application*: WB, P
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG1
Specificity: E Coli
Clone: CBMY-C0345
Application*: E, WB
Target: HSPA1A
Host: Mouse
Antibody Isotype: IgG
Specificity: Cattle
Clone: CBFYH-2173
Application*: E, WB
More Infomation
For Research Use Only. Not For Clinical Use.
(P): Predicted
* Abbreviations
IFImmunofluorescence
IHImmunohistochemistry
IPImmunoprecipitation
WBWestern Blot
EELISA
MMicroarray
CIChromatin Immunoprecipitation
FFlow Cytometry
FNFunction Assay
IDImmunodiffusion
RRadioimmunoassay
TCTissue Culture
GSGel Supershift
NNeutralization
BBlocking
AActivation
IInhibition
DDepletion
ESELISpot
DBDot Blot
MCMass Cytometry/CyTOF
CTCytotoxicity
SStimulation
AGAgonist
APApoptosis
IMImmunomicroscopy
BABioassay
CSCostimulation
EMElectron Microscopy
IEImmunoelectrophoresis
PAPeptide Array
ICImmunocytochemistry
PEPeptide ELISA
MDMeDIP
SHIn situ hybridization
IAEnzyme Immunoassay
SEsandwich ELISA
PLProximity Ligation Assay
ECELISA(Cap)
EDELISA(Det)
BIBioimaging
IOImmunoassay
LFLateral Flow Immunoassay
LALuminex Assay
CImmunohistochemistry-Frozen Sections
PImmunohistologyp-Paraffin Sections
ISIntracellular Staining for Flow Cytometry
MSElectrophoretic Mobility Shift Assay
RIRNA Binding Protein Immunoprecipitation (RIP)
Online Inquiry