0000950129-03-002364 8-K 2 20030501 7 9 20030501 LEXICON GENETICS INC/TX 0001062822 2835 760474169 1231 8-K 34 000-30111 03674875 4000 RESEARCH FOREST DRIVE 281-364-0100 THE WOODLANDS TX 77381 2813640100 4000 RESEARCH FOREST DR THE WOODLANDS TX 77381 8-K 1 h05343e8vk.txt LEXICON GENETICS INCORPORATED - DATED 5/1/03 EX-99.1 3 h05343exv99w1.txt PRESS RELEASE DATED MAY 1, 2003