Dissociation of hexamers of cytochrome P-450 LM2 in the presence of the non-ionic detergent emulgin 913
Berndt, P.; Magretova, N.N.; Miasoedova, K.N.; Cherniak, V.I.
Biokhimiia 54(2): 338-341
1989
ISSN/ISBN: 0320-9725 PMID: 2545283 Document Number: 329608
It was shown that the maximal degree of dissociation of cytochrome P-450 LM2 hexamers in the presence of the nonionic detergent Emulgene 913 (20 degrees C) is observed at the detergent concentration of about 0.2%. Using equilibrium centrifugation in solutions of different density, the molecular mass of the dissociation product minus that of the bound detergent was found to be equal to 50 +/- 8 kDa, thus corresponding to the molecular mass of the monomer. One cytochrome P-450 LM 2 molecule binds 80 +/- 20 molecules of Emulgene 913.