PureCube StrepTactin® MagBeads are a suspension of 6% cross-linked magnetic agarose beads coupled to a StrepTactin protein.

• Usage: Highly specific affinity purification of Strep-(WSHPQFEK)-tagged proteins
• Specificity: Affinity to Strep-tagged (WSHPQFEK) proteins
• Binding capacity: >7 mg/ml
• Bead ligand: StrepTactin®
• Bead size: 30 μm
• Matrix: 6% cross-linked agarose
• Filling quantity: Delivered as a 5 % suspension
• Chemical stability: 2% Tween 20, 2% Triton X-100, 2% IGEPAL® 630/Nonidet P40, n-Octyl-beta-D-glucopyranoside, 0,2% n-Nonyl-beta-D-glucopyranoside, 0,35% N-Decyl-beta-D-maltoside, 2% Lauryl-sarcosine, 0, 1% SDS, 0,3% CHAPS, 1M Guanidine HCl, 1mM PMSF, 10% Ethanol, 5M NaCl, 2M (NH4)SO₄, 1M CaCl₂, 25% Glycerol
• Short-term storage: In equilibration buffer
• Long-term storage: In 20% ethanol at 4 °C

PureCube StrepTactin® MagBeads enable protein yields of up to 7 mg protein per ml MagBeads and were developed for protein purification assays using the Strep-tag® and magnetic separation. PureCube StrepTactin® products are also obtainable as agarose resin. Furthermore, PureCube StrepTactin® MagBeads XL are also available for very vicious cell media.