gp96/HSP90B1/GRP94 Antibody (HSP90B1/1192)

Novus Biologicals, part of Bio-Techne | Catalog # NBP2-44691

Novus Biologicals, part of Bio-Techne

Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, Immunohistochemistry-Paraffin

Label

Unconjugated

Antibody Source

Monoclonal Rat IgG2a Kappa Clone # HSP90B1/1192

Concentration

0.2 mg/ml

View all gp96/HSP90B1 Antibodies »

Product Specifications

Immunogen

Recombinant full-length human gp96/HSP90B1/GRP94 protein (Uniprot: P14625)

Reactivity Notes

Shows broad species reactivity.

Localization

Cytoplasmic and nuclear

Specificity

Recognizes a protein of 94kDa, which is identified as the glucose-regulated protein 94 (grp94) and also tumor rejection antigen (gp96). Grp94 shows a high degree of sequence homology with the heat shock protein 90 (hsp90). This monoclonal antibody is highly specific to grp94 and shows minimal cross-reaction with other members of the HSP90 family. Grps are a class of proteins unresponsive to heat shock and are induced by glucose deprivation. Grp94 has been briefly studied as a prognostic factor in breast cancer.

Marker

Endoplasmic Reticulum Marker

Clonality

Monoclonal

Host

Rat

Isotype

IgG2a Kappa

Theoretical MW

94 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.

Description

200ug/ml of antibody purified from Bioreactor Concentrate by Protein A or G. Prepared in 10 mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA at 1.0 mg/ml. (NBP3-11548)

Antibody with azide - store at 2 to 8C. Antibody without azide - store at -20 to -80C.

Scientific Data Images for gp96/HSP90B1/GRP94 Antibody (HSP90B1/1192)

Immunohistochemistry-Paraffin: gp96/HSP90B1/GRP94 Antibody (HSP90B1/1192) [NBP2-44691]

Immunohistochemistry-Paraffin: gp96/HSP90B1/GRP94 Antibody (HSP90B1/1192) [NBP2-44691]

Immunohistochemistry-Paraffin: gp96/HSP90B1/GRP94 Antibody (HSP90B1/1192) [NBP2-44691] - Human Breast Carcinoma stained with GRP94 Monoclonal Antibody (HSP90B1/1192).

Applications for gp96/HSP90B1/GRP94 Antibody (HSP90B1/1192)

Application
Recommended Usage

Immunohistochemistry-Paraffin

1-2 ug/ml
Application Notes
Immunohistochemistry (Formalin-fixed): 1-2ug/ml for 30 minutes at RT. Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95C followed by cooling at RT for 20 minutes.
Optimal dilution for a specific application should be determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified

Formulation

10 mM PBS with 0.05% BSA

Preservative

0.05% Sodium Azide

Concentration

0.2 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.

Background: gp96/HSP90B1

Glucose-regulated protein 94, also known as Grp94 or gp96, is an abundant resident endoplasmic reticulum (ER) lumenal stress protein which together with cytosolic Hsp90 belongs to the Hsp90 family of molecular chaperones. Grp94 and other resident soluble proteins of the ER such as members of the Ca(2+) binding protein subfamily (CaBP), CaBPI and CaBP2 as well as calreticulin, possess the COOH-terminal tetrapeptide Lys-Asp-Glu-Leu (KDEL) which is a sorting signal that is thought to lead to the retention of these proteins in the pre-Golgi compartments (1). Grp94 expression is upregulated by stress conditions such as lucose starvation and heat shock, which promote protein misfolding or unfolding (2). In addition to a homeostatic role in protein folding and assembly, Grp94 can function in the intracellular trafficking of peptides from the extracellular space to the MHC class I antigen processing pathway of antigen presentation cells (3,4). Grp94 and Hsp90 share high sequence identity and presumably identical adenosine nucleotide-dependent modes of regulation. Earlier data suggests that Hsp90 and Grp94 may differ in their nucleotide binding properties. The N-terminal domain of eukaryotic Hsp90 proteins contains a conserved adenosine nucleotide binding pocket which also serves as the inding site for the Hsp90 inhibitors geldanamycin and radicicol. However, the molecular basis for adenosine nucleotide-dependent regulation of Grp94remains to be established. Recent data has entified a ligand dependent regulation of Grp94 function and suggest a model whereby Grp94 function is regulated through a ligand-dependent conversion of Grp94 from an inactive to an active conformation (5, 6).

Long Name

Heat Shock Protein 90 beta 1

Alternate Names

ECGP, Endoplasmin, Grp94, HSP90B1

Gene Symbol

HSP90B1

UniProt

P14625 (Human)

Additional gp96/HSP90B1 Products

Product Documents for gp96/HSP90B1/GRP94 Antibody (HSP90B1/1192)

Product Datasheets

Certificate of Analysis

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Product Specific Notices for gp96/HSP90B1/GRP94 Antibody (HSP90B1/1192)

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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