Cubipol Fluorescein

The proprietary Cubipol backbone, developed in-house by Cube Biotech, condenses the positive effects of previously available backbones like SMA, DIBMA, and UltrasoluteTM Amphipol. This new development delivers a new multimodal copolymer backbone, making the Cubipol series the first commercially available next-generation copolymer with 4 available off-the-shelf modified variants.

It joins the Next Generation Copolymers AASTY and Ultrasolute™ Amphipol, making solubilization and stabilization of membrane proteins a simpler and more effective endeavor than ever before.

This first-of-its-kind, this functionalized version of Cubipol is fluorescently labeled with fluorescein. This means a pH-dependent fluorescent excitation at ~485 nm and emission maximum at ~510 nm.

Features

State: Lyophilized Powder, to be solved with water

Full Name: Cubipol Fluorescein in 50 mM HEPES, pH 7.5

Buffer: HEPES

pH after solving: 7.5

pH Stability of Copolymer: 5.0-10

Absorbance at 280nm: Yes

Molecular Weight: 7.4 kDA

Ca2+ tolerance: 40 mM

Mg2+ tolerance: 40 mM

Solubility: > 10% (H2O)

Polymerization Type: Free-radical

λAbs: ~485 nm

λEm: ~514 nm

Shipping Temperature: Ambient Temperature

Storage of lyophilized copolymer: -20°C for several years

Storage of dissolved copolymer: 2-8°C for several days