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Comparative Study
. 1984 Jun;158(3):1179-81.
doi: 10.1128/jb.158.3.1179-1181.1984.

Purification and characterization of two kinds of porins from the Enterobacter cloacae outer membrane

M Kaneko, A Yamaguchi, T Sawai
Comparative Study

Purification and characterization of two kinds of porins from the Enterobacter cloacae outer membrane

M Kaneko et al. J Bacteriol. 1984 Jun.

Abstract

Two major outer membrane proteins of Enterobacter cloacae 206 were purified and identified as porins by using reconstituted vesicles. The 37-kilodalton porin forms a channel with a radius of 0.6 nm, which prefers positively charged substances to negatively charged ones, whereas the 39- to 40-kilodalton porin forms a larger channel with a radius of 0.8 nm, which has weaker selectivity for electric charges.

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