Anti-Hsp70/HSPA1A/HSPA1B Antibody Picoband®

About this product

Boster Bio Anti-Hsp70/HSPA1A/HSPA1B Antibody catalog # PA1214. Tested in Flow Cytometry, IF, IHC, IHC-F, ICC, WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Specifications

Catalog number

PA1214

Size / count

100 µg/Vial

Dry ice

No

Hazardous

No

Discontinued

No

Background

The 70 kilodalton heat shock proteins (Hsp70s) are a family of ubiquitously expressed heat shock proteins. The Hsp70s are an important part of the cell's machinery for protein folding, and help to protect cells from stress. All of the Hsp70 proteins have three major functional domains: An N-terminal ATPase domain binds ATP (Adenosine triphosphate) and hydrolyzes it to ADP (Adenosine diphosphate) ; A substrate binding domain contains a groove with an affinity for neutral, hydrophobic amino acid residues; A C-terminal domain rich in alpha helical structure acts as a 'lid' for the substrate binding domain. By binding tightly to partially-synthesized peptide sequences (incomplete proteins), Hsp70 prevents them from aggregating and being rendered nonfunctional. And it also can act to protect cells from thermal or oxidative stress. Finally, Hsp70 seems to be able to participate in disposal of damaged or defective proteins. Interaction with CHIP (Carboxyl-terminus of Hsp70 Interacting Protein) – an E3 ubiquitin ligase– allows Hsp70 to pass proteins to the cell's ubiquitination and proteolysis pathways.

Synonyms

Heat shock 70 kDa protein 1A; Heat shock 70 kDa protein 1B

Gene Name

HSPA8

Gene ID

3303/3304

UniProt

P0DMV8/P0DMV9

Host

Rabbit

Reactivity

Human, Mouse, Rat

Cross Reactivity

No cross-reactivity with other proteins

Immunogen

A synthetic peptide corresponding to a sequence at the N-terminus of human Hsp70, identical to the related rat and mouse sequence.

Clonality

Polyclonal

Tissue Specificity

Expressed in several hair follicle cell types: basal and peripheral matrix cells, and cells of the outer and inner root sheaths. Expressed in colon. Present in cortical neurons (at protein level) . .

Applications

Flow Cytometry, IF, IHC, IHC-F, ICC, WB

Field of Research

Cancer, Chaperones, Heat Shock Proteins, Protein Trafficking, Signal Transduction, Tumor Biomarkers

Purification

Immunogen affinity purified.

Concentration

Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.

Form

Lyophilized

Reconstitution

Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

Function

Key downstream component of the canonical Wnt signaling pathway. In the absence of Wnt, forms a complex with AXIN1, AXIN2, APC, CSNK1A1 and GSK3B that promotes phosphorylation on N-terminal Ser and Thr residues and ubiquitination of CTNNB1 via BTRC and its subsequent degradation by the proteasome. In the presence of Wnt ligand, CTNNB1 is not ubiquitinated and accumulates in the nucleus, where it acts as a coactivator for transcription factors of the TCF/LEF family, leading to activate Wnt responsive genes. Involved in the regulation of cell adhesion. Acts as a negative regulator of centrosome cohesion. Involved in the CDK2/PTPN6/CTNNB1/CEACAM1 pathway of insulin internalization. Blocks anoikis of malignant kidney and intestinal epithelial cells and promotes their anchorage-independent growth by down-regulating DAPK2. Disrupts PML function and PML-NB formation by inhibiting RANBP2-mediated sumoylation of PML (PubMed:17524503, PubMed:18077326, PubMed:18086858, PubMed:18957423, PubMed:21262353, PubMed:22647378, PubMed:22699938, PubMed:22155184) . Promotes neurogenesis by maintaining sympathetic neuroblasts within the cell cycle (By similarity) . .

References & Citations

1. Tavaria M, Gabriele T, Kola I, Anderson RL (April 1996) . A hitchhiker's guide to the human Hsp70 family. Cell Stress Chaperones 1 (1) : 23–8. 2. Morano KA (October 2007) . New tricks for an old dog: the evolving world of Hsp70. Ann. N. Y. Acad. Sci. 1113: 1–14. 3. Luders, J.; Demand, J.; Hohfeld, J. (2000), Journal of Biological Chemistry 275 (7) : 4613–461, http://www.jbc.org/cgi/content/full/275/7/4613, retrieved on 2009-04-07

Storage Conditions

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

Calculated Molecular Weight

85497 MW

Observed Molecular Weight

70 kDa

Specificity

No cross reactivity with other proteins.

Applications Notes

6

Gene Name Synonym

Heat shock protein family A (Hsp70) member 1A/1B

Subcellular Location

Cytoplasm. Nucleus . Cytoplasm, cytoskeleton. Cell junction, adherens junction. Cell junction. Cell membrane . Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Cytoplasm, cytoskeleton, spindle pole. Colocalized with RAPGEF2 and TJP1 at cell-cell contacts (By similarity) . Cytoplasmic when it is unstabilized (high level of phosphorylation) or bound to CDH1. Translocates to the nucleus when it is stabilized (low level of phosphorylation) . Interaction with GLIS2 and MUC1 promotes nuclear translocation. Interaction with EMD inhibits nuclear localization. The majority of beta-catenin is localized to the cell membrane. In interphase, colocalizes with CROCC between CEP250 puncta at the proximal end of centrioles, and this localization is dependent on CROCC and CEP250. In mitosis, when NEK2 activity increases, it localizes to centrosomes at spindle poles independent of CROCC. Colocalizes with CDK5 in the cell-cell contacts and plasma membrane of undifferentiated and differentiated neuroblastoma cells. .

Sequence Similarities

Belongs to the beta-catenin family.

Protein Name

Heat shock 70 kDa protein 1A/1B

Isotype

Rabbit IgG

Contents

Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.