EXHIBIT 4.1 SUBSCRIPTION AGREEMENT ENCHIRA BIOTECHNOLOGY CORPORATIONSubscription Agreement • September 21st, 2000 • Enchira Biotechnology Corp • Services-commercial physical & biological research • Texas
EXHIBIT 4.2 NEITHER THIS WARRANT NOR THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR THE SECURITIES LAWS OF ANY STATE. SUCH SECURITIES MAY NOT BE SOLD OR...Common Stock Purchase Warrant • September 21st, 2000 • Enchira Biotechnology Corp • Services-commercial physical & biological research • Delaware
