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GRP78/HSPA5 Antibody (A5-C9-G6-R)

Novus Biologicals, part of Bio-Techne | Catalog # NBP3-32409

Recombinant Monoclonal Antibody
Novus Biologicals, part of Bio-Techne
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NBP3-32409

Key Product Details

Species Reactivity

Human, Mouse, Rat

Applications

Western Blot

Label

Unconjugated

Antibody Source

Recombinant Monoclonal Mouse IgG1 Clone # A5-C9-G6-R

Concentration

1 mg/ml

Product Specifications

Immunogen

Synthetic peptide within Human GRP78 aa 1-50 / 654. (Uniprot: P11021)

Localization

Endoplasmic reticulum lumen. Melanosome. Cytoplasm.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Theoretical MW

72 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for GRP78/HSPA5 Antibody (A5-C9-G6-R)

GRP78/HSPA5 Antibody (A5-C9-G6-R)

Western Blot: GRP78/HSPA5 Antibody (A5-C9-G6-R) [NBP3-32409]

Western Blot: GRP78/HSPA5 Antibody (A5-C9-G6-R) [NBP3-32409] - Western blot analysis of GRP78/HSPA5 on different lysates with Mouse anti-GRP78/HSPA5 antibody (NBP3-32409) at 1/2,000 dilution.

Lane 1: HeLa cell lysate (20 ug/Lane)
Lane 2: HepG2 cell lysate (20 ug/Lane)
Lane 3: NIH/3T3 cell lysate (20 ug/Lane)
Lane 4: MCF7 cell lysate (20 ug/Lane)
Lane 5: Mouse testis tissue lysate (40 ug/Lane)
Lane 6: Rat liver tissue lysate (40 ug/Lane)

Predicted band size: 72 kDa
Observed band size: 70/72 kDa

Exposure time: 1 minute 2 seconds;

4-20% SDS-PAGE gel.

Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (NBP3-32409) at 1/2,000 dilution was used in 5% NFDM/TBST at 4 overnight. Goat Anti-Mouse IgG - HRP Secondary Antibody at 1/50,000 dilution was used for 1 hour at room temperature.

Applications for GRP78/HSPA5 Antibody (A5-C9-G6-R)

Application
Recommended Usage

Western Blot

1:2000
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A purified

Formulation

PBS (pH7.4), 0.1% BSA and 40% Glycerol

Preservative

0.05% Sodium Azide

Concentration

1 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: GRP78/HSPA5

Within the ER, misfolded proteins are detected by Bip (GPR78). In the presence of misfolded proteins, GPR78 disscociates from PERK, allowing it to homodimerize and autophosphoyate. In its dimerized phosphorylated form, PERK phosphorylates eIF2. The phosphorylation of eIF2 blocks the majority of translation to prevent the continued accumulation of protein in the ER. GRP78 also binds to IRE1 and ATF6 under normal ER conditions, but dissociates upon accumulation of misfolded proteins. Unbound ATF6 is translocated to the gogli where it is converted into a cleaved, active form. The cleaved form of ATF6 is then able to up regulate transcription of UPR genes including XBP1. Activated IRE1 acts as an endoribonuclease to an intron from XBP1 transcripts. The XBP1 splice variant codes for an active transcription factor which activates transcription of P58IPK. P58IPK is a HSP40 protein which binds to and inhibits PERK. Thus, if the accumulated misfolded proteins have been removed, P58IPK acts to shut down the UPR by removing the block to translation.

Long Name

75 KD Glucose Regulated Protein

Alternate Names

BIP, HSP70-5, HSPA5

Gene Symbol

HSPA5

Additional GRP78/HSPA5 Products

Product Documents for GRP78/HSPA5 Antibody (A5-C9-G6-R)

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for GRP78/HSPA5 Antibody (A5-C9-G6-R)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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