0000950129-03-001518 DEF 14A 1 20030430 20030325 20030325 LEXICON GENETICS INC/TX 0001062822 2835 760474169 1231 DEF 14A 34 000-30111 03615030 4000 RESEARCH FOREST DRIVE 281-364-0100 THE WOODLANDS TX 77381 2813640100 4000 RESEARCH FOREST DR THE WOODLANDS TX 77381 DEF 14A 1 h03341def14a.txt LEXICON GENETICS INCORPORATED