This product is a pre-assembled nanodisc. Its intended purpose is to stabilize a cell-free expressed membrane protein.

• Origin of MSP protein: Human
• Purity: >90% (Determined by SDS-PAGE)
• Number of amino acids: 217
• Molecular mass: 25309 Da
• Extinction coefficient (in water) ε280: 25440 M⁻¹cm⁻¹
• Buffer: 20 mM TRIS pH 7.4, 100 mM NaCl, 0.5 mM EDTA
• Sequence (1 - Letter code): MGSSHHHHHH ENLYFQ GLKLLDNWDSVTSTFSKLREQLG PVTQEFWDNLE KETEGLRQEMS KDLEEVKAKVQ PYLDDFQKKWQEEMELYRQKVE PLRAELQEGARQKLHELQEKLS PLGEEMRDRARAHVDALRTHLA PYSDELRQRLAARLEALKENGG ARLAEYHAKATEHLSTLSEKAK PALEDLRQGLL PVLESFK VSFLSALEEY TKKLNTQ
• Affinity tag: N-Terminal His-tag

Membrane scaffold proteins derive from apolipoprotein (apo; A-I). They are used in membrane protein sciences for the stabilization of membrane proteins in a lipid environment after the removal of the cell membrane. The size of the nanodisc is determined by the MSP that was used to create the disc. MSP1D1 Biotinyl PE nanodiscs have a ∼9 to 10 nm diameter.

For the assembly of this nanodisc product, a mixture of 10% headgroup-biotinylated Phospholipid in DMPC or POPC has been used. The resulting nanodisc-protein complexes can be used e.g. for immobilization on streptavidin-coated surfaces.