Comparative study on fibers isolated from four R-type pyocins, phage-tail-like bacteriocins of Pseudomonas aeruginosa.

Five R-type pyocins have been reported which are almost identical with one another in their morphology and subunit composition, though distinct in receptor-binding specificity. We isolated fibers from pyocin R2, R3, and R4 by essentially the same procedure as used in our previous isolation of pyocin R1 fiber with unimpaired receptor-binding ability. All the… (More)