Search results - 2 results

which had the S1- S2 immunity gene. Comparison of type I fpvA sequences from immunity gene-negative S2-sensitive and S2-resistant strains revealed only a valine-to-isoleucine substitution at position 46 ...

=0.06 microg/ml. One resistant isolate (Mh 20) had an extra mutation (C-→ T) in gyrA resulting in an amino acid change from alanine to valine at position 83 (E. coli numbering), leading to a further ...