Human gp96/HSP90B1/GRP94 ELISA Kit (Colorimetric)

ELISA: Human gp96/HSP90B1/GRP94 ELISA Kit (Colorimetric) [NBP2-76451] - Samples were spiked with high concentrations of Human gp96/HSP90B1/GRP94 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

ELISA: Human gp96/HSP90B1/GRP94 ELISA Kit (Colorimetric) [NBP2-76451] - Standard Curve Reference

• Reactivity: Hu
• Applications: ELISA
• Suitable Sample Type: Serum, plasma and other biological fluids
• Standard Curve Range: 0.31 - 20 ng/mL
• Sensitivity: 0.19 ng/mL

Human gp96/HSP90B1/GRP94 ELISA Kit (Colorimetric) Summary

• Specificity: This kit recognizes Human HSPgp96 in samples. No significant cross-reactivity or interference between Human HSPgp96 and analogues was observed.
• Standard Curve Range: 0.31 - 20 ng/mL
• Sensitivity: 0.19 ng/mL
• Assay Type: Sandwich-ELISA
• Inter-Assay: CV% < 4.42%
• Intra-Assay: CV% < 5.17%
• Spike Recovery: 88-108%
• Sample Volume: 100 uL
• Kit Type: ELISA Kit (Colorimetric)
• Gene: HSP90B1

Applications/Dilutions

• Dilutions:
  • ELISA

Packaging, Storage & Formulations

• Storage: Storage of components varies. See protocol for specific instructions.

Alternate Names for Human gp96/HSP90B1/GRP94 ELISA Kit (Colorimetric)

• 94 kDa glucose-regulated protein
• ECGP
• Endoplasmin
• endothelial cell (HBMEC) glycoprotein
• glucose regulated protein, 94 kDa
• gp96
• GP96ECGP
• Grp94
• GRP-94
• GRP94gp96 homolog
• Heat shock protein 90 kDa beta member 1
• heat shock protein 90kDa beta (Grp94), member 1
• HSP90B1
• TRA1endoplasmin
• tumor rejection antigen (gp96) 1
• Tumor rejection antigen 1
• Tumor rejection antigen-1 (gp96)

Background

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).

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. ELISA Kits are guaranteed for 6 months from date of receipt.

Bioinformatics

• Gene Symbol: HSP90B1