Invitrogen

GRP78 Monoclonal Antibody (C38), eBioscience™

Name: GRP78 Monoclonal Antibody (C38), eBioscience\u2122
Brand: Invitrogen
SKU: 14-9768-82

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5 篇参考文献

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说明书

实验方案

问题与答案

技术支持

说明书

实验方案

问题与答案

技术支持

说明书

实验方案

问题与答案

技术支持

抗体检测数据 (2)
已发表图片 (1)

GRP78 Antibody in Immunohistochemistry (Paraffin) (IHC (P))

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GRP78 Antibody (14-9768-82) in IHC (P)

Immunohistochemistry of formalin-fixed paraffin embedded human breast cancer tissue using 5 µg/mL Anti-Human GRP78 Purified (right) followed by 10 µg/mL of Anti-Mouse IgG Biotin, Avidin HRP and DAB visualization.Nuclei are counterstained with hematoxylin.

GRP78 Antibody in Immunocytochemistry (ICC/IF)

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产品信息

14-9768-82

应用

建议稀释比

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免疫组化 (IHC)

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免疫组化（石蜡） (IHC (P))

5 µg/mL

免疫细胞化学 (ICC/IF)

5 µg/mL

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流式细胞分析 (Flow)

Assay-Dependent

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酶联免疫吸附实验 (ELISA)

Assay-Dependent

产品规格

种属反应

Human

已发表种属

C. elegans, Cynomolgus monkey, Human

宿主/亚型

Mouse / IgG2b, kappa

分类

Monoclonal

类型

Antibody

克隆号

C38

偶联物

Unconjugated Unconjugated Unconjugated

形式

Liquid

浓度

0.5 mg/mL

纯化类型

Affinity chromatography

保存液

PBS, pH 7.2

内含物

0.09% sodium azide

保存条件

4°C

运输条件

Ambient (domestic); Wet ice (international)

AB_2573012

产品详细信息

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. Evidence also suggests that GRP78 plays a role in promoting tumor growth and metastasis by inhibiting apoptosis. GRP78 overexpression confers drug-resistance to chemotherapeutic agents and the level of expression can be correlated with pathologic grade and survival in breast, liver, prostate, colon and gastric cancers.

Applications Reported: This C38 antibody has been reported for use in flow cytometric analysis, immunohistochemical staining of formalin-fixed paraffin embedded tissue sections, microscopy, ELISA, and immunocytochemistry.

Applications Tested: This C38 antibody has been tested by immunocytochemistry of fixed and permeabilized cells and can be used at less than or equal to 5 µg/mL. This C38 antibody has been tested by immunohistochemistry of formalin-fixed paraffin embedded human tissue using low or high pH antigen retrieval and can be used at less than or equal to 5 µg/mL. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.

Purity: Greater than 90%, as determined by SDS-PAGE.

Aggregation: Less than 10%, as determined by HPLC.

Filtration: 0.2 µm post-manufacturing filtered.

靶标信息

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.

仅用于科研。不用于诊断过程。未经明确授权不得转售。

生物信息学

蛋白别名: 78 kDa glucose-regulated protein; Binding-immunoglobulin protein; BiP; Endoplasmic reticulum chaperone BiP; endoplasmic reticulum lumenal Ca(2+)-binding protein grp78; epididymis secretory sperm binding protein Li 89n; FLJ26106; glucose-regulated protein, 78kDa; GRP-78; heat shock 70kDa protein 5 (glucose-regulated protein, 78kDa); Heat shock protein 70 family protein 5; Heat shock protein family A member 5; HSP70 family protein 5; HSPA 5; Immunoglobulin heavy chain-binding protein

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基因别名: BIP; GRP78; HEL-S-89n; HSPA5; MIF2

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UniProt ID: (Human) P11021

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Entrez Gene ID: (Human) 3309

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功能