PROCESS FOR PRODUCING THE A AND B SUBUNITS OF CHOLERA TOXIN, PREPARATIONS CONTAINING SO-OBTAINED SUBUNIT OR SUBUNITS, DNA SEQUENCES AND RECOMBINANT DNA MOLECULES RELATED THERETO

摘要

ABSTRACT OF THE DISCLOSUREDNA sequences and recombinant DNA molecules com-prising at least a portion coding for all or part ofsubunits A and/or B of cholera toxin are prepared byenzymatic digestion of DNA of V. cholerae strains, iso-lating specific fragments and inserting them in appro-priate vectors and subunits A and/or B of cholera toxinare prepared by culture of microorganisms containingsaid modified vectors.