Diphtheria toxin vaccines
First Claim
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1. A DNA encoding an immunologically cross-reactive form of diphtheria toxin Fragment A, wherein the codons corresponding to Val-147 and Glu-148 of naturally-occurring diphtheria toxin (FIG. 1;
- SEQ ID NO;
1) are absent from said DNA.
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Abstract
A DNA encoding an immunologically cross-reactive form of diphtheria toxin Fragment A, wherein the codons corresponding to Val-147 and Glu-148 of naturally-occurring diphtheria toxin are deleted from the DNA.
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19 Claims
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1. A DNA encoding an immunologically cross-reactive form of diphtheria toxin Fragment A, wherein the codons corresponding to Val-147 and Glu-148 of naturally-occurring diphtheria toxin (FIG. 1;
- SEQ ID NO;
1) are absent from said DNA. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
- SEQ ID NO;
Specification