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Biomedical subjects

J Gooch

Publications and source records attributed to J Gooch.

29 records · Page 2Linked to original sources

Catheter care.

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Cross Infection↗

Change for the better.

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Attitude of Health Personnel↗

Synthesis of thiol-containing analogues of puromycin and a study of their interaction with N-acetylphenylalanyl-transfer ribonucleic acid on ribosomes to form thioesters.

1. The thiol-containing analogue of puromycin, 6-dimethylamino-9-{1'-[3'-(2''-mercapto-3''-phenylpropionamido)-3'-deoxy-beta-d-ribofuranosyl]}purine (XVII) in which the primary amino group of the antibiotic is replaced with a thiol grouping, was synthesized chemically (compound XVII is abbreviated to thiopuromycin). 2. Thiopuromycin (XVII) was found to be active in releasing N-[(3)H]acetylphenylalanine from its tRNA carrier as the thioester, N-acetylphenylalanylthiopuromycin (XIX) in the Escherichia coli ribosomal system. The reaction product (XIX) was synthesized chemically from thiopuromycin and N-acetylphenylalanine and found to be stable to hydrolysis in the standard incubation medium at pH7.6. dl-Phenyl-lactylpuromycin (XXI), the hydroxy analogue of puromycin, was also synthesized chemically and shown to release N-acetylphenylalanine from its tRNA carrier in the E. coli ribosomal system, thus confirming the previous results of Fahnestock et al. [Biochemistry (1970) 9, 2477-2483]. 3. In marked contrast with the results obtained in the E. coli system, both thiopuromycin (XVII) and hydroxypuromycin (XXI) were found to be inactive in releasing N-acetylphenylalanine from its tRNA carrier in the rat liver ribosomal system.

Animals↗

Dying in the ward.

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Communication↗

A care plan for David.

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Activities of Daily Living↗