Key Product Details

Species Reactivity

Validated:

Human, Mouse, Rat, C. elegans, Chicken, Drosophila, Sheep, Zebrafish

Predicted:

Bovine (100%), Primate (100%). Backed by our 100% Guarantee.

Applications

Flow Cytometry, Immunocytochemistry/Immunofluorescence, Immunohistochemistry, Immunohistochemistry Free-Floating, Immunohistochemistry-Paraffin, Western Blot

Label

Alexa Fluor 488 (Excitation = 488 nm, Emission = 515-545 nm)

Antibody Source

Polyclonal Rabbit IgG

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

View all GRP78/HSPA5 Antibodies »

Product Specifications

Immunogen

Synthetic peptide made to an internal portion of human GRP78 (within residues 250-300). [Swiss-Prot# P11021]

Reactivity Notes

Use in Zebrafish reported in scientific literature (PMID:34327238) C. elegans reactivity reported in scientific literature (PMID: 31398187).

Localization

Endoplasmic reticulum lumen. Melanosome. Note: Identified by mass spectrometry in melanosome fractions from stage I to stage IV.

Marker

ER Stress Marker

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for GRP78/HSPA5 Antibody [Alexa Fluor® 488]

Flow Cytometry: GRP78/HSPA5 Antibody [Alexa Fluor® 488] [NBP1-06274AF488] - An intracellular stain was performed on NIH3T3 cells with GRP78/HSPA5 Antibody NBP1-06274AF488 (blue) and a matched isotype control (orange). Cells were fixed with 4% PFA and then permeabilized with 0.1% saponin. Cells were incubated in an antibody dilution of 5 ug/mL for 30 minutes at room temperature. Both antibodies were conjugated to Alexa Fluor 488.
Flow Cytometry: GRP78/HSPA5 Antibody [Alexa Fluor (R) 488] [NBP1-06274AF488] - An intracellular stain was performed on HeLa cells with GPR78/HSPA5 antibody NBP1-06274 (blue) and a matched isotype control NBP2-24893 (orange). Cells were fixed with 4% PFA and then permeablized with 0.1% saponin. 1 microgram of antibody was added to 100 uL of staining buffer and cells were incubated for 30 minutes at room temperature. Both antibodies were conjugated to Alexa Fluor 488.

Applications for GRP78/HSPA5 Antibody [Alexa Fluor® 488]

Application
Recommended Usage

Flow Cytometry

Optimal dilutions of this antibody should be experimentally determined.

Immunocytochemistry/Immunofluorescence

Optimal dilutions of this antibody should be experimentally determined.

Immunohistochemistry

Optimal dilutions of this antibody should be experimentally determined.

Immunohistochemistry Free-Floating

Optimal dilutions of this antibody should be experimentally determined.

Immunohistochemistry-Paraffin

Optimal dilutions of this antibody should be experimentally determined.

Western Blot

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
This GRP78 antibody is useful for immunocytochemistry/immunofluorescence and western blot where a band is seen at ~78 kDa. For information on the flow cytometry application, see the publication PMID: 20208072. Use in Immunocytochemistry/immunofluorescence reported in scientific literature (PMID 24089213) 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.

Formulation, Preparation, and Storage

Purification

Immunogen affinity purified

Formulation

50mM Sodium Borate

Preservative

0.05% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

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

Stability & Storage

Store at 4C in the dark.

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 [Alexa Fluor® 488]

Product Datasheets

Certificate of Analysis

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

Download SDS

Product Specific Notices for GRP78/HSPA5 Antibody [Alexa Fluor® 488]

Alexa Fluor (R) products are provided under an intellectual property license from Life Technologies Corporation. The purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: (i) in manufacturing; (ii) to provide a service, information, or data in return for payment; (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@lifetech.com. This conjugate is made on demand. Actual recovery may vary from the stated volume of this product. The volume will be greater than or equal to the unit size stated on the datasheet.

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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