Heat Shock 70 kDa Protein 5 (HSPA5) Antibody

When Chinese hamster K12 cells are starved of glucose, the synthesis of several proteins, called glucose-regulated proteins (GRPs), is markedly increased. Hendershot et al. (1994) (PubMed 8020977) pointed out that one of these, GRP78 (HSPA5), also referred to as 'immunoglobulin heavy chain-binding protein' (BiP), is a member of the heat-shock protein-70 (HSP70) family and is involved in the folding and assembly of proteins in the endoplasmic reticulum (ER). Because so many ER proteins interact transiently with GRP78, it may play a key role in monitoring protein transport through the cell.Probably plays a role in facilitating the assembly of multimeric protein complexes inside the ER.The HSP70 proteins are ubiquitous molecular chaparones that are found in all organisms and tissue types. Like other members of the HSP70 family, BiP is a peptide-binding ATPase that is able to differentiate native proteins from unfolded polypeptides. BiP does not bind to fully folded and assembled proteins, except in the presence of other co-chaparones. BiP is involved in a number of key mechanisms and pathways including polypeptide translocation across the endoplasmic reticulum, folding, assembly, transport of secreted or membrane proteins, and the regulation of calcium homeostasis. Although BiP is relatively abundant, marked increases in BiP occur where there is an accumulation of unfolded polypeptides. For this reason, BiP has been identified as a marker for various disease states that are associated with secretory and transmembrane protein misfolding.

Target	Heat Shock 70 kDa Protein 5 (HSPA5)
Clonality	Monoclonal
Reactivity	Human
Tested Applications	ELISA, WB, IHC
Host	Mouse
Recommended dilutions	ELISA: 1/10000, WB: 1/500 - 1/2000, IHC: 1/200 - 1/1000. Optimal dilutions/concentrations should be determined by the end user.
Conjugation	Unconjugated
Immunogen	Purified recombinant fragment of human HSPA5 expressed in E. coli.
Isotype	IgG1
Form	Liquid
Purification	Unpurified ascites.
Storage	Aliquot and store at -20°C. Avoid repeated freeze/thaw cycles.
UniProt Primary AC	P11021 (UniProt, ExPASy)
UniProt Secondary AC	B0QZ61, Q2EF78, Q9NPF1, Q9UK02
UniProt Entry Name	BIP_HUMAN
Gene Symbol	HSPA5
GeneID	3309
OMIM	138120
HGNC	5238
KEGG	hsa:3309
Ensembl	ENSG00000044574
String	9606.ENSP00000324173
Molecular Weight	78 kDa
Buffer	Ascitic fluid containing 0.03% sodium azide.
Concentration	Not determined.
Availability	Shipped within 5-10 working days.
Note	This product is for research use only.

Research Articles on Heat Shock 70 kDa Protein 5 (HSPA5)

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