Location of F1 ATPase-like genes on the physical map of the Bacillus subtilis 168 chromosome.
Explore the source record for details and available documents.
Biomedical subjects
Publications and source records attributed to K J Sutherland.
Explore the source record for details and available documents.
Motility of the alkalophilic Bacillus sp. C-125, a flagellate bacterium, was demonstrated to be Na(+)- and pH-dependent. Flagellin protein from this strain was purified to homogeneity and the N-terminal sequence determined. Using the hag gene of Bacillus subtilis as a probe, the hag gene of Bacillus sp. C-125 was identified and cloned into Escherichia coli. Sequencing of this hag gene revealed that it encodes a protein of 272 amino acids (M(r) 29,995). The predicted N terminal sequence of this protein was identical to that determined by N-terminal sequencing of the flagellin protein from strain C-125. The alkalophilic Bacillus sp. C-125 flagellin shares homology with other known flagellins in both the N- and C-terminal regions. The middle portion, however, shows considerable differences, even from that of flagellin from the related species, B. subtilis.
The citrate synthase gene from the thermophilic archaebacterium Thermoplasma acidophilum was expressed in Escherichia coli, yielding an active product of the expected molecular weight. Manipulation of the citrate synthase gene in a series of pUC19 constructs showed that the presumed Thermoplasma ribosome binding site is recognized by the E. coli ribosome. A rapid purification of the expression product to homogeneity was achieved, based on the thermostability of Thermoplasma citrate synthase.
The gene encoding the citric acid cycle enzyme, citrate synthase, has been cloned from the thermoacidophilic archaebacterium, Thermoplasma acidophilum. We report the sequencing of this gene and its flanking regions, and the derived amino acid sequence of the enzyme is compared by multiple-sequence alignment analysis with those of citrate synthases from eubacterial and eukaryotic organisms. The similarity is less than 30% between the archaebacterial and non-archaebacterial sequences, although the majority of residues implicated in the catalytic action of the enzyme have been conserved across all three kingdoms. The cloned archaebacterial gene has been expressed in Escherichia coli to produce catalytically active citrate synthase. This is the first reported sequence of citrate synthase from the archaebacteria.
A written and clinical examination acceptable to six of the eight Australian dental boards and designed for the assessment of overseas-trained dentists was introduced in 1979 by the Expert Panel in Dentistry of the Committee on Overseas Professional Qualifications (COPQ). It is planned to hold the clinical examination, which was developed with the assistance of the Dental Board of New South Wales, in various State capitals in future years.
Dental treatment rendered to patients suffering from various systemic problems may need to be varied from that normally given to healthy patients. This paper deals with these problems and recommends the precautionary measures that should be taken to avoid serious consequences.
Patients with a variety of diseases in the oro-facial region are frequently confused when trying to decide from which of the professions of medicine and dentistry to seek treatment. Furthermore, during the process of arriving at a diagnosis, numerous practitioners and specialists in both professions may be called in for consultation, thus adding to the dilemma. Four cases are reported in this article to illustrate the problem, and some conclusions are drawn as to how it may be minimized albeit not completely solved.
Explore the source record for details and available documents.