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BiP/GRP78 (C-terminus) Antibody

Purified Mouse Monoclonal Antibody (Mab)

     
  • 1 - BiP/GRP78 (C-terminus) Antibody AP52683
    Western blot detection of BiP/GRP78 (C-terminus) in Hela,C6,Lncap and MDA-MB-468 cell lysates using BiP/GRP78 (C-terminus) mouse mAb (1:1000 diluted).Predicted band size:72KDa.Observed band size:78KDa.
  • 8 - BiP/GRP78 (C-terminus) Antibody AP52683
    Immunocytochemistry staining of HeLa cells fixed with 4% Paraformaldehyde and using anti-BiP/GRP78 (C-terminus) mouse mAb (dilution 1:50).
  • 2 - BiP/GRP78 (C-terminus) Antibody AP52683
    Immunohistochemical analysis of paraffin-embedded Colorectal cancer using BiP/GRP78 (C-terminus) Mouse mAb (1/100 dilution).Antigen retrieval was performed by pressure cooking in citrate buffer (pH 6.0).
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Product Information
Application
  • Applications Legend:
  • E=ELISA
  • WB=Western Blotting
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin)
  • IP=Immunoprecipitation
  • IF=Immunofluorescence
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • FC=Flow Cytometry
  • DB=Dot Blot
WB, ICC, IHC
Primary Accession P11021
Reactivity Human
Host Mouse
Clonality Monoclonal
Isotype IgG1
Calculated MW 72333 Da
Additional Information
Gene ID 3309
Other Names 78 kDa glucose regulated protein;78 kDa glucose-regulated protein;AL022860;AU019543;BIP; D2Wsu141e;D2Wsu17e;Endoplasmic reticulum lumenal Ca(2 )-binding protein grp78; Endoplasmic reticulum lumenal Ca2 binding protein grp78;FLJ26106;Glucose Regulated Protein 78kDa;GRP 78;GRP-78;GRP78;GRP78_HUMAN;Heat shock 70 kDa protein 5;Heat Shock 70kDa Protein 5;Hsce70;HSPA 5;HSPA5;Immunoglobulin Heavy Chain Binding Protein; Immunoglobulin heavy chain-binding protein;mBiP;MIF2;Sez7.
Dilution WB~~1:1000
ICC~~1:50
IHC~~1:100
Format Purified mouse monoclonal antibody in PBS(pH 7.4) containing with 0.09% (W/V) sodium azide and 50% glycerol.
Storage Store at -20 °C.Stable for 12 months from date of receipt
Protein Information
Name HSPA5 (HGNC:5238)
Function Endoplasmic reticulum chaperone that plays a key role in protein folding and quality control in the endoplasmic reticulum lumen (PubMed:2294010, PubMed:23769672, PubMed:23990668, PubMed:28332555). Involved in the correct folding of proteins and degradation of misfolded proteins via its interaction with DNAJC10/ERdj5, probably to facilitate the release of DNAJC10/ERdj5 from its substrate (By similarity). Acts as a key repressor of the EIF2AK3/PERK and ERN1/IRE1- mediated unfolded protein response (UPR) (PubMed:11907036, PubMed:1550958, PubMed:19538957, PubMed:36739529). In the unstressed endoplasmic reticulum, recruited by DNAJB9/ERdj4 to the luminal region of ERN1/IRE1, leading to disrupt the dimerization of ERN1/IRE1, thereby inactivating ERN1/IRE1 (By similarity). Also binds and inactivates EIF2AK3/PERK in unstressed cells (PubMed:11907036). Accumulation of misfolded protein in the endoplasmic reticulum causes release of HSPA5/BiP from ERN1/IRE1 and EIF2AK3/PERK, allowing their homodimerization and subsequent activation (PubMed:11907036). Plays an auxiliary role in post-translational transport of small presecretory proteins across endoplasmic reticulum (ER). May function as an allosteric modulator for SEC61 channel-forming translocon complex, likely cooperating with SEC62 to enable the productive insertion of these precursors into SEC61 channel. Appears to specifically regulate translocation of precursors having inhibitory residues in their mature region that weaken channel gating. May also play a role in apoptosis and cell proliferation (PubMed:26045166).
Cellular Location Endoplasmic reticulum lumen. Melanosome. Cytoplasm {ECO:0000250|UniProtKB:P20029}. Cell surface Note=Identified by mass spectrometry in melanosome fractions from stage I to stage IV (PubMed:12643545). Localizes to the cell surface of epithelial cells in response to high levels of free iron (PubMed:20484814, PubMed:24355926, PubMed:27159390)
Research Areas

For Research Use Only. Not For Use In Diagnostic Procedures.

BACKGROUND

Probably plays a role in facilitating the assembly of multimeric protein complexes inside the endoplasmic reticulum. Involved in the correct folding of proteins and degradation of misfolded proteins via its interaction with DNAJC10, probably to facilitate the release of DNAJC10 from its substrate.

REFERENCES

Ting J.,et al.DNA 7:275-286(1988).
Chao C.C.K.,et al.Submitted (DEC-1995) to the EMBL/GenBank/DDBJ databases.
Hansen J.J.,et al.Submitted (JAN-2000) to the EMBL/GenBank/DDBJ databases.
Bermudez-Fajardo A.,et al.Submitted (DEC-1999) to the EMBL/GenBank/DDBJ databases.
Humphray S.J.,et al.Nature 429:369-374(2004).

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