Reactivity: | Human, Mouse, Rat |
Applications: | WB, IHC, ELISA |
Host Species: | Rabbit |
Isotype: | IgG |
Clonality: | Polyclonal antibody |
Gene Name: | Heat shock protein family A (Hsp70) member 5 |
Gene Symbol: | HSPA5 |
Synonyms: | BIP; GRP78; HEL-S-89n; BiP/GRP78 |
Gene ID: | 3309 |
UniProt ID: | P11021 |
Immunogen: | A synthetic peptide corresponding to a sequence within amino acids 550-650 of human BiP/GRP78 (NP_005338.1). |
Dilution: | WB 1:500-1:1000; IHC 1:50-1:200 |
Purification Method: | Affinity purification |
Concentration: | 1.43 mg/ml |
Buffer: | PBS with 0.09% Sodium azide, 50% glycerol, pH7.3. |
Storage: | Store at -20°C. Avoid freeze / thaw cycles. |
Documents: | Manual-HSPA5 antibody |
Background
The protein encoded by this gene is a member of the heat shock protein 70 (HSP70) family. This protein localizes to the lumen of the endoplasmic reticulum (ER) where it operates as a typical HSP70 chaperone involved in the folding and assembly of proteins in the ER and is a master regulator of ER homeostasis. During cellular stress, as during viral infection or tumorogenesis, this protein interacts with the transmembrane stress sensor proteins PERK (protein kinase R-like endoplasmic reticulum kinase), IRE1 (inositol-requiring kinase 1), and ATF6 (activating transcription factor 6) where it acts as a repressor of the unfolded protein response (UPR) and also plays a role in cellular apoptosis and senescence. Elevated expression and atypical translocation of this protein to the cell surface has been reported in viral infections and some types of cancer cells. At the cell surface this protein may facilitate viral attachment and entry to host cells. This gene is a therapeutic target for the treatment of coronavirus diseases and chemoresistant cancers.
Images
![]() | Western blot analysis of various lysates, using BiP/GRP78 Rabbit pAb (A0241) at 1:1000 dilution. Secondary antibody: HRP-conjugated Goat anti-Rabbit IgG (H+L) (AS014) at 1:10000 dilution. Lysates/proteins: 25μg per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit (RM00020). Exposure time: 60s. |
![]() | Western blot analysis of various lysates, using BiP/GRP78 Rabbit pAb (A0241) at 1:1000 dilution. Secondary antibody: HRP-conjugated Goat anti-Rabbit IgG (H+L) (AS014) at 1:10000 dilution. Lysates/proteins: 25μg per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit (RM00020). Exposure time: 60s. |
![]() | Immunohistochemistry analysis of paraffin-embedded Rat brain using BiP/GRP78 Rabbit pAb (A0241) at dilution of 1:100 (40x lens). Microwave antigen retrieval performed with 0.01M PBS Buffer (pH 7.2) prior to IHC staining. |
![]() | Immunohistochemistry analysis of paraffin-embedded Human liver cancer using BiP/GRP78 Rabbit pAb (A0241) at dilution of 1:100 (40x lens). Microwave antigen retrieval performed with 0.01M PBS Buffer (pH 7.2) prior to IHC staining. |
![]() | Immunohistochemistry analysis of paraffin-embedded Human placenta using BiP/GRP78 Rabbit pAb (A0241) at dilution of 1:100 (40x lens). Microwave antigen retrieval performed with 0.01M PBS Buffer (pH 7.2) prior to IHC staining. |
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