Characterization of a new 5' splice site within the caprine arthritis encephalitis virus genome: evidence for a novel auxiliary protein

Table 1 Effects of Rtm on the fusion activity of Env protein.

Plasmid^a	No. of syncytia/well (293T/GSM cocultivation)^b	% of syncytia^c
pKCR3	0	0
pKEnv	954 ± 105	100
pKEnv + pKRtm	200 ± 46	21

^aThe plasmid amounts were normalized by addition of empty plasmid pKCR3 in order to have the same copy number of SV40 promotor in all transfections.
^bNumbers of syncytia in 30 randomly selected fields per well. Averages of three wells are shown.
^cNumber of syncytia divided by the number obtained with the positive control (pKEnv + pKCR3 plasmids) × 100.

ISSN: 1742-4690