Document 0042 DOCN M9460042 TI Production of linear polymers of HIV gp120-binding domains [letter] DT 9408 AU Smythe JA; Nardelli B; Chatterjee P; Gallo RC; Gershoni JM SO Protein Eng. 1994 Feb;7(2):145-7. Unique Identifier : AIDSLINE MED/94224745 AB It has been demonstrated previously that molecular decoys of the acetylcholine receptor have therapeutic efficacy as antitoxins [Gershoni, J. and Aronheim, A. (1988) Proc. Natl Acad. Sci. USA, 85, 4087-4089], but surely a most challenging goal is to apply this approach towards the development of antiviral drugs. As viruses present multiple copies of their envelope proteins, it was proposed that polyvalent decoys could be advantageous. Here we report the design and expression of recombinant linear polymers of the HIV gp120-binding domains which are situated within the T-cell membrane protein CD4. Whereas the production of linear concatemers of CD4 variable domains is feasible, a number of conformational constraints must be considered when designing a polymeric molecule which retains biological function. Most significant is the contribution of domains flanking the binding site that apparently enable correct folding of the latter. DE Antigens, CD4/*METABOLISM Antiviral Agents/CHEMISTRY/*METABOLISM HIV Envelope Protein gp120/*METABOLISM Plasmids Polymers Protein Binding *Protein Engineering Recombinant Fusion Proteins/*METABOLISM LETTER JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).