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AB238959

Anti-GRP94 antibody [EPR3988] - BSA and Azide free

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(1 Publication)

Rabbit Recombinant Monoclonal GRP94 antibody. Carrier free. Suitable for IHC-P, WB and reacts with Human, Mouse samples. Cited in 1 publication.

View Alternative Names

GRP94, HSPC4, TRA1, HSP90B1, Endoplasmin, 94 kDa glucose-regulated protein, Heat shock protein 90 kDa beta member 1, Heat shock protein family C member 4, Tumor rejection antigen 1, gp96 homolog, GRP-94

6 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)

ab108606, at 1/100 dilution, staining GRP94 in paraffin-embedded Human breast tissue by Immunohistochemistry.

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab108606).

Perform heat mediated antigen retrieval before commencing with IHC staining protocol.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)
  • IHC-P

Lab

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)

ab108606 staining GRP94 in paraffin embedded human hepatocellular carcinoma tissue sections by Immunohistochemistry (IHC-P- paraformaldehyde-fixed, paraffin embedded sections).

Samples are incubated in primary antibody at 1 : 1000 dilution (0.57 μg/ml). A ready to use Goat Anti-Rabbit IgG H&L (HRP) was used as the secondary antibody. Heat mediated antigen retrieval was performed using ab93684 (Tris/EDTA buffer, pH 9.0). Hematoxylin was used as a counterstain. Cytoplasmic staining on human hepatocellular carcinoma.

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol and sodium azide (ab108606).

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)

ab108606, at 1/100 dilution, staining GRP94 in paraffin-embedded Human gastric adenocarcinoma tissue by Immunohistochemistry.

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab108606).

Perform heat mediated antigen retrieval before commencing with IHC staining protocol.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)
  • IHC-P

Lab

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)

ab108606 staining GRP94 in paraffin embedded Human lung carcinoma tissue sections by Immunohistochemistry (IHC-P- paraformaldehyde-fixed, paraffin embedded sections). Samples are incubated in primary antibody at 1 : 1000 dilution (0.57µg/ml). A ready to use Goat Anti-Rabbit IgG H&L (HRP) was used as the secondary antibody. Heat mediated antigen retrieval was performed using ab93684 (Tris/EDTA buffer, pH 9.0). Hematoxylin was used as a counterstain. Cytoplasmic staining on human lung carcinoma.

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab108606).

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)
  • IHC-P

Lab

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)

ab108606 staining GRP94 in paraffin embedded Mouse liver carcinoma tissue sections by Immunohistochemistry (IHC-P- paraformaldehyde-fixed, paraffin embedded sections). Samples are incubated in primary antibody at 1 : 1000 dilution (0.57µg/ml). A ready to use Goat Anti-Rabbit IgG H&L (HRP) was used as the secondary antibody. Heat mediated antigen retrieval was performed using ab93684 (Tris/EDTA buffer, pH 9.0). Hematoxylin was used as a counterstain. Cytoplasmic staining on mouse liver.

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab108606).

Western blot - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)
  • WB

Lab

Western blot - Anti-GRP94 antibody [EPR3988] - BSA and Azide free (AB238959)

This data was developed using the same antibody clone in a different buffer formulation (ab108606).

Lanes 1-3 : Merged signal (red and green). Green - ab108606 observed at 94 kDa. Red - loading control ab8245 observed at 36 kDa.

ab108606 Anti-GRP94 antibody [EPR3988] was shown to specifically react with GRP94 in wild-type HEK293T cells. Loss of signal was observed when knockout cell line ab266313 (knockout cell lysate ab257254) was used. Wild-type and GRP94 knockout samples were subjected to SDS-PAGE. ab108606 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4°C at 1 in 1000 dilution and 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.

All lanes:

Western blot - Anti-GRP94 antibody [EPR3988] (<a href='/en-us/products/primary-antibodies/grp94-antibody-epr3988-ab108606'>ab108606</a>) at 1/1000 dilution

Lane 1:

Wild-type HEK293T cell lysate at 20 µg

Lane 2:

HSP90B1 knockout HEK293T cell lysate at 20 µg

Lane 2:

Western blot - Human HSP90B1 (GRP94) knockout HEK-293T cell line (<a href='/en-us/products/cell-lines/human-hsp90b1-grp94-knockout-hek-293t-cell-line-ab266313'>ab266313</a>)

Lane 3:

HeLa cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-irdye-800cw-preadsorbed-ab216773'>ab216773</a>) at 1/10000 dilution

Predicted band size: 92 kDa

Observed band size: 94 kDa

false

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR3988

Isotype

IgG

Carrier free

Yes

Reacts with

Mouse, Human

Applications

IHC-P, WB

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "FlowCyt" : {"fullname" : "Flow Cytometry", "shortname":"Flow Cyt"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p>Antigen retrieval is recommended.</p>", "ICCIF-species-checked": "notRecommended", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "<p></p>", "IP-species-checked": "notRecommended", "IP-species-dilution-info": "", "IP-species-notes": "<p></p>", "FlowCyt-species-checked": "notRecommended", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "<p></p>", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "", "WB-species-notes": "<p></p>" }, "Mouse": { "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p>Antigen retrieval is recommended.</p>", "ICCIF-species-checked": "notRecommended", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "<p></p>", "IP-species-checked": "notRecommended", "IP-species-dilution-info": "", "IP-species-notes": "<p></p>", "FlowCyt-species-checked": "notRecommended", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "<p></p>", "WB-species-checked": "guaranteed", "WB-species-dilution-info": "", "WB-species-notes": "<p></p>" } } }

Product details

ab238959 is the carrier-free version of ab108606.

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Species reactivity
Rat: We have preliminary internal testing data to indicate this antibody may not react with this species.
Please contact us for more information.

Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

Compatibility
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Constituents: PBS
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
Do Not Freeze

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

GRP94 also known as HSP90b1 is a glycoprotein that belongs to the heat shock protein 90 family. It has a molecular mass of approximately 94 kDa. GRP94 is expressed mainly in the endoplasmic reticulum and appears in high levels in cells undergoing stress. This protein acts as a chaperone assisting in the proper folding and assembly of other proteins playing an essential role in protein homeostasis. GRP94 ensures the quality control of proteins by preventing misfolding and aggregation.
Biological function summary

GRP94 influences the stability of many secretory and cell-surface proteins. It forms part of a multi-protein complex that stabilizes client proteins and assists their proper folding. GRP94 is essential for the maturation of proteins involved in the immune response including immunoglobulins and integrins. Overexpression of GRP94 has been noted in various cancers where it supports the folding of proteins required for tumor growth and survival.

Pathways

GRP94 is an important element of the protein folding quality control mechanism within the endoplasmic reticulum. It functions in coordination with other chaperones like BiP and calnexin within the unfolded protein response (UPR) pathway. The UPR pathway is essential during stress conditions where increased protein synthesis occurs. GRP94 also contributes to calcium homeostasis and directly interacts with proteins like integrins affecting cell adhesion and motility.

GRP94 has been implicated in the progression of cancer and neurodegenerative diseases. Overexpression of GRP94 is often linked to cancer where it stabilizes oncogenic proteins necessary for cancer cell survival. In neurodegenerative disorders GRP94 shows altered expression levels which may influence the pathogenesis of diseases like Alzheimer's. The interaction between GRP94 and other proteins such as tau protein in Alzheimer's highlights its potential role in disease mechanisms.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Molecular chaperone that functions in the processing and transport of secreted proteins (By similarity). When associated with CNPY3, required for proper folding of Toll-like receptors (By similarity). Functions in endoplasmic reticulum associated degradation (ERAD) (PubMed : 18264092). Has ATPase activity (By similarity). May participate in the unfolding of cytosolic leaderless cargos (lacking the secretion signal sequence) such as the interleukin 1/IL-1 to facilitate their translocation into the ERGIC (endoplasmic reticulum-Golgi intermediate compartment) and secretion; the translocation process is mediated by the cargo receptor TMED10 (PubMed : 32272059).
See full target information HSP90B1

Publications (1)

Recent publications for all applications. Explore the full list and refine your search

Food science & nutrition 13:e70408 PubMed40491976

2025

Molecular Mechanisms Underlying Apple Extract Ameliorates Depression-Incident Cognitive Dysfunction Based on Network Pharmacology.

Applications

Unspecified application

Species

Unspecified reactive species

Yue Chen,Shunqiang Yang,Huihuang Shi,Jizhe Cui,Zhu Li
View all publications

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