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ZRB1237

Sigma-Aldrich

Anti-HSP70 Antibody, clone 4E12 ZooMAb® Rabbit Monoclonal

enhanced validation
greener alternative

recombinant, expressed in HEK 293 cells

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

Quality Level

recombinant

expressed in HEK 293 cells

conjugate

unconjugated

antibody form

purified antibody

antibody product type

primary antibodies

clone

4E12, monoclonal
recombinant monoclonal

product line

ZooMAb® learn more

form

lyophilized

mol wt

calculated mol wt ~70.05 kDa
observed mol wt ~66 kDa

species reactivity

human, monkey

species reactivity (predicted by homology)

bovine

packaging

antibody small pack of 25 μL

greener alternative product characteristics

Waste Prevention
Designing Safer Chemicals
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

enhanced validation

recombinant expression
Learn more about Antibody Enhanced Validation

sustainability

Greener Alternative Product

technique(s)

affinity binding assay: suitable
immunocytochemistry: suitable
immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable
western blot: suitable

isotype

IgG

UniProt accession no.

greener alternative category

shipped in

ambient

storage temp.

2-8°C

target post-translational modification

unmodified

General description

We are committed to bringing you greener alternative products, which adhere to one or more of The 12 Principles of Green Chemistry.This antibody is Preservative-free, produced without the harm or sacrifice of animals and exceptionally stable to allow for ambient shipping and storage if needed and thus aligns with "Waste Prevention", "Designing Safer Chemicals" and "Design for Energy Efficiency". Click here for more information.
ZooMAb antibodies represent an entirely new generation of recombinant monoclonal antibodies.

Each ZooMAb antibody is manufactured using our proprietary recombinant expression system, purified to homogeneity, and precisely dispensed to produce robust and highly reproducible lot-to-lot consistency. Only top-performing clones are released for use by researchers. Each antibody is validated for high specificity and affinity across multiple applications, including its most commonly used application. ZooMAb antibodies are reliably available and ready to ship when you need them.

Specificity

Clone 4E12 is a ZooMAb® rabbit recombinant monoclonal antibody that specifically detects Heat Shock 70 kDa protein 1A. It targets an epitope within 16 amino acids from the C-terminal region.

Immunogen

KLH-conjugated linear peptide corresponding to 16 amino acids from the C-terminal region of human Heat Shock 70 kDa protein.

Application

Quality Control Testing

Evaluated by Western Blotting in HeLa cell lysate.

Western Blotting Analysis: A 1:1,000 dilution of this antibody detected HSP70 in HeLa cell lysate.

Tested Applications

Western Blotting Analysis: A 1:1,000 dilution from a representative lot detected HSP70 in MCF-7 and COS-7 cell lysates.

Immunohistochemistry (Paraffin) Analysis: A 1:100 dilution from a representative lot detected HSP70 in human bladder tissue sections.

Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected HSP70 in HeLa, A431, and HepG2 cells.

Affinity Binding Assay: A representative lot of this antibody bound HSP70 peptides with a KD of 3.9 x 10-7 in an affinity binding assay.

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user
Anti-HSP70, clone 4E12 ZooMAb®, Cat. No. ZRB1237, is a recombinant Rabbit monoclonal antibody that specifically targets HSP70 and is tested for use in Affinity Binding Assay, Immunocytochemistry, Immunohistochemistry (Paraffin), and Western Blotting.

Target description

Heat shock 70 kDa protein 1A (UniProt: P0DMV8; also known as Heat shock 70 kDa protein 1, HSP70-1, HSP70.1) is encoded by the HSPA1A (also known as HSP72, HSPA1, HSX70) gene (Gene ID: 3303) in human. The 70-kDa heat shock protein (HSP70) is highly conserved, ubiquitous protein that functions as a molecular chaperone and helps in folding of newly synthesized or denatured proteins and in activation of proteolysis of misfolded proteins and the formation and dissociation of protein complexes. It 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. HSP70 is localized in cytoplasmic mRNP granules containing untranslated mRNAs. It is acetylated at Lysine 77 by NA110 in response to cellular stress and then it is gradually deacetylated by HDAC4 at later stages. Its acetylation enhances its chaperone activity and 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 are shown to bind to HOPX and STUB1, respectively. HSP70 contains four ATP-binding regions and its N-terminal nucleotide binding domain (NBD; ATPase domain) is responsible for binding and hydrolyzing ATP. Its substrate binding domain (SBD) is localized to the C-terminal region. When ADP is bound in the NBD, a conformational change enhances the affinity of the SBD for client proteins. This ZooMAb® recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Green, JM et al. (1995). Hybridoma 14(4); 347-354; Mayer MP., and Bukau, B. (2005). Cell. Mol. Life Sci. 2005 Mar; 62(6): 670-684).

Physical form

Purified recombinant mouse monoclonal antibody IgG, lyophilized in PBS, 5% Trehalose, normal appearance a coarse or translucent resin. Contains no biocide or preservatives, such as azide, or any animal by-products. Larger pack sizes provided as multiples of 25 μL.

Reconstitution

30 μg/mL after reconstitution at 25 μL per vial. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type.

Storage and Stability

Recommend storage of lyophilized product at 2-8°C; Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial; Reconstitute each vial by adding 25 μL of filtered lab grade water or PBS; Reconstituted antibodies can be stored at 2-8°C, or -20°C for long term storage. Avoid repeated freeze-thaws.

Legal Information

ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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