We have investigated the in vitro self-splicing of a class II mitochondrial intron. A model pre-mRNA
containing intron 5y of the oxi 3 gene of yeast mftochondrial DNA undergoes an …

A target protein for nalidixic and oxolinic acids in Escherichia coli, the nalA gene product (Pnal),
was purified to homogeneity as judged by gel electrophoresis, using an in vitro …

Escherichia coli DNA gyrase catalyzes negative supercoiling of closed duplex DNA at the
expense of ATP. Two additional activities of the enzyme that have illuminated the energy …

Antibodies producing an unusual immunofluorescent pattern were identified in the sera of
patients with diverse autoimmune features. This pattern was characterized by the presence of …

… Products were analyzed by gel electrophoresis as described by Peebles et al. (I 983). … ) in
high-salt buffer as described by Peebles et al. (1983). was centrifuged at 200,000 xg for 2 hr. …

Mycobacteriophages are viruses that infect mycobacterial hosts. Expansion of a collection
of sequenced phage genomes to a total of 60—all infecting a common bacterial host—…

Bacteriophages are the most abundant forms of life in the biosphere and carry genomes
characterized by high genetic diversity and mosaic architectures. The complete sequences of …

Long-term memory relies on modulation of synaptic connections in response to experience.
This plasticity involves trafficking of AMPA receptors (AMPAR) and alteration of spine …

Extensively purified DNA gyrase from Escherichia coli is inhibited by nalidixic acid and by
novobiocin. The enzyme is composed of two subunits, A and B, which were purified as …

… are numbered according to the scheme of Peebles et al. (… maintained and grown as
described by Peebles et al. (1979). … were prepared as described by Peebles et al. (1979) using …