protein

HSPA5/GRP-78 Protein, Human (His)

HY-P72239

5 μg;10 μg;50 μg

95;160;445 USD

HSPA5/GRP-78 Protein, Human (His)

proteins

E. coli

5 μg;10 μg;50 μg

95;160;445 USD

HSPA5/GRP-78 is an endoplasmic reticulum chaperone that coordinates protein folding and quality control. It cooperates with DNAJC10/ERdj5 to facilitate correct protein folding and participates in the degradation of misfolded proteins, potentially releasing DNAJC10/ERdj5. HSPA5/GRP-78 Protein, Human (His) is the recombinant human-derived HSPA5/GRP-78 protein, expressed by E. coli , with N-6*His labeled tag. The total length of HSPA5/GRP-78 Protein, Human (His) is 269 a.a., with molecular weight of ~33.6 kDa.

Human

HSPA5/GRP-78, an endoplasmic reticulum chaperone, assumes a pivotal role in orchestrating protein folding and quality control within the endoplasmic reticulum lumen. Partnering with DNAJC10/ERdj5, it contributes to the proper folding of proteins and participates in the degradation of misfolded counterparts, potentially facilitating the release of DNAJC10/ERdj5 from its substrate. Functioning as a critical suppressor of the unfolded protein response (UPR) mediated by ERN1/IRE1, HSPA5/GRP-78 is recruited to the luminal region of ERN1/IRE1 by DNAJB9/ERdj4 under unstressed conditions, disrupting ERN1/IRE1 dimerization and thereby inactivating ERN1/IRE1. However, the accumulation of misfolded proteins prompts the release of HSPA5/BiP from ERN1/IRE1, allowing for homodimerization and subsequent activation of ERN1/IRE1. Additionally, HSPA5/GRP-78 serves as an auxiliary player in the post-translational transport of small presecretory proteins across the endoplasmic reticulum and is implicated in apoptosis, cell proliferation, and viral infection, acting as a cellular receptor for several flaviviruses, including Dengue virus, Zika virus, and Japanese encephalitis virus.

Endoplasmic reticulum chaperone BiP; GRP-78; BiP; GRP78

Greater than 90% as determined by reducing SDS-PAGE.

Lyophilized from a 0.2 μm solution of PBS, 6% Trehalose, pH 7.4.

Room temperature in continental US; may vary elsewhere.