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GRP78 Monoclonal Antibody (C38), eBioscience™, Invitrogen™

Mouse Monoclonal Antibody

972.00 SEK - 2835.00 SEK

Specifications

Antigen GRP78
Clone C38
Concentration 0.5 mg/mL
Applications ELISA, Flow Cytometry, Immunocytochemistry, Immunohistochemistry (Paraffin)
Classification Monoclonal
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Products 2
Product Code Brand Quantity Price Quantity & Availability  
Product Code Brand Quantity Price Quantity & Availability  
15517666
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Affymetrix eBioscience
14-9768-82
100 μg
2835.00 SEK
100µg
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15507666
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Affymetrix eBioscience
14-9768-80
25 μg This item is currently unavailable or has been discontinued.
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Description

Description

Description: The monoclonal antibody C38 recognizes human glucose-related protein 78 (GRP78). The GRP78 is encoded by the HSPA5 gene and functions as an endoplasmic reticulum (ER) chaperone protein and is a member of the heat shock protein 70 family. GRP78 functions within the ER lumen to facilitate proper protein folding, to prevent intermediates from aggregating, to target misfolded proteins for degradation, and as a calcium binding protein capable of recognizing ER stress and inducing the Unfolded Protein Response (UPR). During normal cellular function, GRP78 is bound to the transmembrane sensor proteins PERK, IRE1, and ATF6, keeping them in an inactive state. During ER stress, GRP78 binds to the hydrophobic residues of unfolded proteins within the ER and releases the sensor proteins, allowing signaling to the nucleus and the initiation of the UPR. During the UPR, protein synthesis is slowed and the transcription of ER chaperones is upregulated, increasing the capacity of the ER. GRP78 is normally expressed at basal levels in all adult organs and is required for the proliferation and survival of embryonic stem cells. GRP78 expression is upregulated in cancer cells due to the increased numbers of underglycosylated and misfolded proteins responsible for triggering the UPR. In addition to being expressed in the ER, GRP78 is also expressed on the surface of cancer cells.

GRP78 is a 78 kDa glucose regulated protein that belongs to the family of heat shock proteins that include HSP70. GRP78 is a resident protein of the endoplasmic reticulum (ER) and associates transiently with a variety of newly synthesized secretory and membrane proteins. GRP78 may also interact with mutant and misfolded proteins, marking them for degradation. The highly conserved sequence Lys-Asp-Glu-Leu (KDEL) is present at the C-terminus of GRP78 and other resident ER proteins including glucose regulated protein 94 (GRP94) and protein disulfide isomerase (PDI). The KDEL signal is recognized by the KDEL receptor and this interaction ensures recycling of escaped ER proteins back to the ER. GRP78’s involvement in correct folding of proteins and degradation of misfolded proteins is via its interaction with DNAJC10, probably to facilitate the release of DNAJC10 from its substrate. GRP78 is critical for maintenance of cell homeostasis and the prevention of apoptosis. GRP78 protein levels have been shown to be a reliable biomarker of hypoglycemia and serves a neuroprotective function in neurons exposed to glutamate and oxidative stress. GRP78 levels are reduced in the brains of Alzheimer's Disease patients, and decreased expression of GRP78 is found associated with missense mutations in the human presenilin-1 (PS1) gene. Further, the induction of the GRP78 protein has been associated with the development of drug-resistance to antitumor drugs.
Specifications

Specifications

GRP78
0.5 mg/mL
Monoclonal
Liquid
RUO
P11021
3309
IgG2b κ
Affinity chromatography
Hspa5
C38
ELISA, Flow Cytometry, Immunocytochemistry, Immunohistochemistry (Paraffin)
Unconjugated
Mouse
Human
78 kDa glucose-regulated protein; 78 kDa glucose-regulated protein homolog; 78-kD glucose-regulated protein precursor; AL022860; AU019543; baffled; Binding-immunoglobulin protein; bip; BiP protein; BiP/Grp78; cb865; D2Wsu141e; D2Wsu17e; Endoplasmic reticulum chaperone BiP; endoplasmic reticulum chaperone BiP; 78 kDa glucose-regulated protein; endoplasmic reticulum lumenal Ca(2+)-binding protein grp78; epididymis secretory sperm binding protein Li 89n; fb60h09; fi36d04; FLJ26106; glucose regulated protein, 78 kDa; glucose-regulated protein; glucose-regulated protein, 78kDa; GRP 78; grp78; GRP-78; heat shock 70 kDa protein 5; heat shock 70 kDa protein 5a; heat shock 70kD protein 5; heat shock 70kD protein 5 (glucose-regulated protein, 78kD); heat shock 70kDa protein 5; heat shock 70kDa protein 5 (glucose-regulated protein); heat shock 70kDa protein 5 (glucose-regulated protein, 78kDa); heat shock protein 5; heat shock protein 70 family protein 5; heat shock protein family A (Hsp70) membe
Hspa5
Primary
Antibody
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