Blepharmone: A Conjugation-Inducing Glycoprotein in the Ciliate Blepharisma

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Science  16 Aug 1974:
Vol. 185, Issue 4151, pp. 621-623
DOI: 10.1126/science.185.4151.621


Gamone 1 of Blepharisma intermedium was isolated, identified as a slightly basic glycoprotein (mizoleclular weight, 2 x 105), and designated as blepharmnone. At the concentration of 6 x 10-8 milligram per milliliter, it specifically transforms matinig type 2 cells, so that they can conjugate in about 2 hours.