Recombinant Human CUL3/RBX2 Complex His-tag Protein, CF

Catalog #: E3-430 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
E3-430-025

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Recombinant Human CUL3/RBX2 Complex His-tag Protein, CF Summary

Product Specifications

Purity

>90%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie® Blue stain.

Activity

Typical enzyme concentration to support in vitro conjugation will depend on experimental conditions.

Source

Spodoptera frugiperda, Sf 21 (baculovirus)-derived human CUL3/RBX2 Complex protein
Met1 - Ala768 with a N-terminal 10-His tag (CUL3), Met1 - Lys113 (RBX2)

Accession #

Q13618.2 (CUL3), Q9UBF6.1 (RBX2)

Predicted Molecular Mass

92 kDa (CUL3), 13 kDa (RBX2)

Product Datasheets

E3-430

Product Datasheet

COA

SDS

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

E3-430

Formulation	Supplied as a solution in HEPES, NaCl, DTT and Glycerol.
Shipping	The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 6 months from date of receipt, -70 °C as supplied. 3 months, -70 °C under sterile conditions after opening.

Reconstitution Calculator

Background: CUL3/RBX2 Complex

Cullin-3 (CUL3) is a core component of multiple BCR (BTB-CUL3-RBX) E3 Ubiquitin ligase complexes that mediate the ubiquitination of several classes of signaling and structural proteins. In the BCR complex, CUL3 serves as a scaffold that organizes one or more BTB (BR-C, Ttk and Bab, also known as a POZ domain) substrate recognition subunits with the RBX subunit and contributes to catalysis through positioning of the substrate and an E2 ubiquitin-conjugating enzyme. Substrate specificity of a BCR ligase is determined by the BTB domain protein(s) associated with the ligase, though BTB-independent CUL3 ligase activity has been reported. In vivo, the E3 ubiquitin ligase of the BCR complex is dependent on neddylation of the cullin subunit, though neddylation may be dispensable for some in vitro reactions.

References