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Antibodies

HSPA1B Antibody

Product Sizes
100ul
£316.00
OACD04326-100UL
1ml
£868.00
OACD04326-1ML
About this Product
SKU:
OACD04326
Additional Names:
68 kDa heat shock protein;heat shock 70 kDa protein 1;heat shock 70 kDa protein 1B;heat shock 70kDa protein 1B;heat shock protein 70.1;heat shock protein; 70 kDa 1;hsp;hsp68;Hsp70;Hsp70.1;Hsp70-1;HSP70B1.
Clonality:
Polyclonal
Concentration:
0.5 mg/ml
Extra Details:
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. 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. 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. Enhances STUB1-mediated SMAD3 ubiquitination and degradation and facilitates STUB1-mediated inhibition of TGF-beta signaling. Essential for STUB1-mediated ubiquitination and degradation of FOXP3 in regulatory T-cells (Treg) during inflammation.
Gene Details:
heat shock protein 1B
Host:
Rabbit
Immunogen:
Range: Met1 - Asp642
Isotype:
IgG
Molecular Weight:
70 kDa
Protein Details:
Heat shock 70 kDa protein 1B
Purification:
Affinity Purified; Protein A Purified
Shipping Conditions:
Blue Ice
Storage Conditions:
2Â[o]C to 8Â[o]C|-20Â[o]C
Supplier:
Aviva Systems Biology
Type:
Antibodies: Polyclonal Antibody