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23-044-M

Sigma-Aldrich

VHL Protein Complex, Active, 10 µg

Active complex of five (5) recombinant human enzymes: VHL amino acids 54-end, full length Elongin C, full length Elongin B, full length Cul2, & full length Rbx1. For use in Enzyme Assays. Functions as an E3 ligase in ubiquitination assays.

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Synonym(s):
VCB-Cul2 complex, ECV complex, CBC VHL
eCl@ss:
32160405
NACRES:
NA.41

biological source

human

Quality Level

recombinant

expressed in Sf21 cells

manufacturer/tradename

Upstate®

technique(s)

activity assay: suitable

Gene Information

General description

The VHL complex is a multi-subunit ubiquitin ligase composed of VHL, Elongin B, Elongin C, Cul2 and Rbx1. The VHL protein serves as the substrate recognition component and is linked by Elongin C to a heterodimeric Cul2/Rbx1 module that functions as a potent activator of the ubiquitination of target proteins by an E2 conjugating enzyme. Elongin B interacts with the complex through Elongin C and appears to stabilize the binding of Elongin C to VHL. The primary function of the VHL complex is to regulate HIF (hypoxia inducible factor) activity by targeting the hydroxylated HIF-1α subunit for ubiquitination and rapid proteasomal degradation under normoxic conditions. It therefore plays an important role in the regulation of hypoxia-inducible genes such as the vascular endothelial growth factor (VEGF) and glucose transport-1 (Glut-1). Mutations in VHL are associated with the inherited von Hippel-Lindau (VHL) cancer syndrome and numerous forms of renal cell carcinoma.

Application

Ubiquitination Cascade Comoponent: E3

Physical form

Purified using glutathione sepharose.

Other Notes

For Specific Activity data, refer to the Certificate of Analysis for individual lots of this enzyme.

Legal Information

UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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