EXHIBIT 2 AGREEMENT AND PLAN OF MERGER AND REORGANIZATION This Agreement and Plan of Merger and Reorganization dated as of January 4, 1999 (this "Agreement"), is by and among LeukoSite, Inc., a Delaware corporation ("LeukoSite"), LeukoSite Merger...Merger Agreement • February 26th, 1999 • Leukosite Inc • Pharmaceutical preparations • Massachusetts
