CAS 162758-04-5: N-Biotinylaminoethyl Methanethiosulfonate

N-Biotinylaminoethyl methanethiosulfonate is a synthetic molecule that binds to the α1 subunit of the Na+,K+-ATPase enzyme. It has been shown to inhibit the inactivation of this enzyme, which is necessary for the transport of sodium and potassium ions across cell membranes. The Na+,K+-ATPase plays an important role in nerve conduction, heart function, and immune response and is also involved in serotonin release from platelets. N-Biotinylaminoethyl methanethiosulfonate binds to the α1 subunit by forming disulfide bonds with cysteine residues. This binding leads to increased activity of the enzyme by preventing its inactivation by molecular chaperones such as protein disulfide isomerase.

Stability Moisture Sensitive Applications Reacts specifically and rapidly with thiols to form mixed disulfides. Used to probe the structures of the ACh receptor channel of the GABA receptor channel and of lactose permease. MTSEA-biotin has recently been used to probe the topology of the serotonin (5-HT) transporter by site-directed chemical labelling. References J. Biol. Chem., 273(20), 12675 (1998), Adams, C.M., et al.: J. Biol. Chem., 273 (46), 30204 (1998), Boileau, A. J., et al.: J. Neurosci., 19, 12, 4847 (1999), Wagner, D.A.and Czajkowski, C.: J. Neurosci., 21, 67 (2001), Traebert, M.: J. Membr. Biol., 180, 83 (2001)

N-Biotinylaminoethyl methylthiosulphonate