THE extraction of Gram-negative bacteria by the hot phenol method of Westphal 1 yields a lipopolysaccharide along with considerable amounts of nucleic acid. The nucleic acid can be separated from ...

and so new antibacterial drugs against class C ESBL-producing Gram-negative bacteria are urgently needed. three amino-acid deletion (residues 303–305) of CMY-10 (Ref. 7); four amino-acid ...