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F. Pouresmaeili, C.R. Morales and R. Oko 1997 Molecular cloning and structural analysis of gene encoding PERF 15 protein present in the perinuclear theca of rat spermatozoa. Biol. Reprod. 57:655-659.
P. Sutovsky, R. Oko, L. Hewitson and G. Schatten 1997 Removal of the sperm perinuclear theca and its association with the bovine oocyte surface during fertilization. Dev. Biol. 188-75-84.
U. Schalles, X. Shao, F. van der Hoorn and R. Oko 1998 Developmental expression of the 84 kDa ODF sperm protein: localization to both the cortex and medulla of outer dense fibers and to the connecting piece. Dev. Biol. 199:250-260.
R. Oko 1998 Occurrence and formation of cytoskeletal proteins in mammalian spermatozoa. Andrologia 30:193-206.
R. Oko and Y. Clermont 1998 Spermiogenesis. In: Encyclopedia of Reproduction. E. Knobil and D. Neill Eds., Academic Press, San Diego, Vol 4:602-609.
M. El-Alfy, D. Moshonas, C.R. Morales and R. Oko 1999 Molecular cloning and developmental expression of the major fibrous sheath protein (FS 75) of rat sperm. J. Androl 20 (in press).