Molecular chaperone that promotes the maturation, structural maintenance and proper regulation of specific target proteins involved for instance in cell cycle control and signal transduction. Undergoes a functional cycle that is linked to its ATPase activity which is essential for its chaperone activity. This cycle probably induces conformational changes in the client proteins, thereby causing their activation. Interacts dynamically with various co-chaperones that modulate its substrate recognition, ATPase cycle and chaperone function. Engages with a range of client protein classes via its interaction with various co-chaperone proteins or complexes, that act as adapters, simultaneously able to interact with the specific client and the central chaperone itself. Recruitment of ATP and co-chaperone followed by client protein forms a functional chaperone. After the completion of the chaperoning process, properly folded client protein and co-chaperone leave HSP90 in an ADP-bound partially open conformation and finally, ADP is released from HSP90 which acquires an open conformation for the next cycle (By similarity). Plays a key role in slow and fast muscle development in the embryo. Plays a role in myosin expression and assembly. Source: Recombinant protein corresponding to aa151-355 from danio rerio Heat shock protein HSP 90-alpha 1, fused to 10X His-Tag at N-terminal and Myc-Tag at C-terminal, expressed in Baculovirus. Molecular Weight: ~27.9kD Amino Acid Sequence: HNDDEQYIWESAAGGSFTVKPDFGESIGRGTKVILHLKEDQSEYVEEKRIKEVVKKHSQFIGYPITLYIEKQREKEVDLEEGEKQEEEEVAAGEDKDKPKIEDLGADEDEDSKDGKNKRKKKVKEKYIDAQELNKTKPIWTRNPDDITNEEYGEFYKSLSNDWEDHLAVKHFSVEGQLEFRALLFVPRRAAFDLFENKKKRNNIK Storage and Stability: Lyophilized and reconstituted products are stable for 6 months after receipt at -20C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Supplied as a lyophilized powder from 20mM Tris-HCl, 0.5M sodium chloride, pH 8.0, 6% trehalose. Reconstitute with sterile ddH2O to a concentration of 0.1-1mg/ml.
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