Towards understanding the crystallization of photosystem II: influence of poly(ethylene glycol) of various molecular sizes on the micelle formation of alkyl maltosides.

ABSTRACT: The influence of poly(ethylene glycol) (PEG) polymers H-(O-CH₂-CH₂)_p-OH with different average molecular sizes p on the micelle formation of n-alkyl-β-D-maltoside detergents with the number of carbon atoms in the alkyl chain ranging from 10 to 12 is investigated with the aim to learn more about the detergent behavior under conditions suitable for the crystallization of the photosynthetic pigment-protein complex photosystem II. PEG is shown to increase the critical micelle concentration (CMC) of all three detergents in the crystallization buffer in a way that the free energy of micelle formation increases linearly with the concentration of oxyethylene units (O-CH₂-CH₂) irrespective of the actual molecular weight of the polymer. The CMC

SUBMITTER: Muh F 

PROVIDER: S-EPMC11615006 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature