AR Protein A 4FF column

AR Protein A 4FF is an alkali-resistant affinity chromatography medium for the separation and purification of monoclonal antibodies, polyclonal antibodies or Fc-fusion proteins.

Protein A is a cell wall protein isolated from Staphylococcus aureus that binds mammalian IgG mainly through an Fc fragment. The ligand protein for AR Protein A 4FF is an alkali-resistant protein A (so abbreviated as AR) obtained by bioengineering mutation of recombinant protein A, expressed in E.coli. There are no animal-derived components are used in the ligand purification process. The ligands are specially designed for enhanced stability to alkalis and proteases.

AR Protein A is based on a highly cross-linked 4% agarose gel, which can purify monoclonal and polyclonal antibodies at relatively high flow rates. Its pressure resistance makes it suitable for use in Large-scale production of industrialized antibodies.

While it is cleaned with 0.1M NaOH for 200 times; the medium load remain almost unchanged. After cleaning with 0.5M NaOH for 100 times, the load can still reach 80% of the initial load. It uses a more stable directional coupling with low shedding (less than 10ng/mg IgG).
Catalog No.506052
Unit Size 5 x 1mL / 1 x 5mL / 5 x 5mL
Product CategoryAffinity Purification
Matrix Highly Cross-Linked 4% Agarose Beads
Ligand Alkali Resistant Protein A
Chemical Resistance Tolerates all reagents
Binding Capacity >40mg human lgG/ml
Bead Size ~90um
Flow Velocity 0-300 cm/h
pH Stability 3-12
Cleaning In-Place 0.1-0.5M NaOH
Storage Buffer 1x PBS containing 20% Ethanol
Storage/Stability 2-8°C/2 years
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