SCFSkp2 Complex, Active, Recombinant, Human (SCFSkp2, Skp2/Cks1 complex)
Artikelnummer:
USB-029607
Hersteller Artikelnummer:
029607
Alternativnummer:
USB-029607-10
Hersteller:
US Biological
Kategorie:
Molekularbiologie
The SCF (Skp1-Cul1-F-box protein) complexes represent the largest family of ubiquitin-protein ligases and mediate the ubiquitination of a broad spectrum of regulatory and signalling proteins in diverse cellular pathways. The SCF consists of three invariant components, Skp1, Cul1 and Rbx1 and an interchangeable subunit, an F-box protein which is responsible for recruiting specific substrates to be ubiquitinated by the SCF. SCFSkp2 mediates the ubiquitination and subsequent proteasomal degradation of target proteins involved in cell cycle progression, signal transduction and transcription. It specifically recognizes phosphorylated p27 and is involved in regulation of G1/S transition. Complex formation of SCFSkp2 with Cks1 is required for the degradation of p27. An increased level of Skp2 and reduced level of p27 is linked to poor prognosis in a number of cancers. Recombinant protein corresponding to complex of N-terminal 6His-tagged, recombinant human Skp2 full length, N-terminal GST-tagged, recombinant human Skp1 full length, N-terminal 6His-tagged, recombinant human Cul1 full length and untagged recombinant human Rbx1 full length, co- expressed by baculovirus in Sf21 insect cells. Active complex of five (5) full length, recombinant human enzymes: Skp1, Skp2, Cul1, Rbx1 & Cks1. For use in Enzyme Assays. Functions as an E3 ligase in ubiquitination assays. Molecular Weight: Cks1: ~11kD, Skp2: ~52kD, Skp1: ~46kD, Cul1: ~93kD, Rbx1: ~12kD Storage and Stability: Aliquot to avoid repeated freezing and thawing and store at -70C. Aliquots are stable for 6 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
