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Science 16 November 1984:
Vol. 226. no. 4676, pp. 852 - 855
DOI: 10.1126/science.6149619
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Articles

Science, Vol 226, Issue 4676, 852-855
Copyright © 1984 by American Association for the Advancement of Science

articles

Transglutaminase-mediated modifications of the rat sperm surface in vitro

G Paonessa, S Metafora, G Tajana, P Abrescia, A De Santis, V Gentile, and R Porta

Two transglutaminase-mediated modifications of the rat epididymal spermatozoon surface were demonstrated in vitro. Transglutaminase was effective in promoting the binding of spermidine to the sperm. Moreover, the enzyme, by reacting with one of the major proteins secreted by the rat seminal vesicle epithelium, produced a modified form of the protein with a higher molecular weight and the capability of binding to the sperm cells. A specific physiological role for the enzyme, bringing about modifications of the rat sperm surface in the seminal fluid environment, is suggested.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Effect of Protein SV-IV on Experimental Salmonella enterica Serovar Typhimurium Infection in Mice.
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Transglutaminase from Rat Coagulating Gland Secretion. POST-TRANSLATIONAL MODIFICATIONS AND ACTIVATION BY PHOSPHATIDIC ACIDS.
C. Esposito, P. Pucci, A. Amoresano, G. Marino, A. Cozzolino, and R. Porta (1996)
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A transglutaminase that converts interleukin-2 into a factor cytotoxic to oligodendrocytes.
S Eitan and M Schwartz (1993)
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