M. Pollock

Publications70
h-index21
Citations1,394
Highly Influential Citations6
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Long-chain unsaturated fatty acids as essential bacterial growth factors: further studies with Corynebacterium Q.
  • 8
  • 2
Terminology of Enzyme Formation
IT has been recognized for many years that in micro-organisms the formation of a large variety of enzymes can be specifically induced by exposing cells to compounds which are substrates for the… Expand
  • 65
  • 1
The selective action of tetrathionate in bacteriological media: A report to the Medical Research Council.
The chemical and biological properties of the constituents of tetrathionate media have been investigated. (1) The selective properties of thiosulphate and tetrathionate are expressed in graphic form,… Expand
  • 26
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The genetics of Bacillus licheniformis penicillinase: a preliminary analysis from studies on mutation and inter-strain and intra-strain transformations.
SUMMARY: A system of transformation in Bacillus licheniformis is described, in which a wide variety of markers can be transferred from one strain to another. A number of mutants affecting the… Expand
  • 59
  • 1
The location of cell-bound penicillinase in Bacillus subtilis.
SUMMARY: Before penicillinase is released from a penicillin-induced culture of Bacillus subtilis it accumulates and up to 85% is found to be bound to the cells. This cell-bound penicillinase is not… Expand
  • 25
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Purification of penicillin-induced penicillinase of Bacillus cereus NRRL 569: a comparison of its properties with those of a similarly purified penicillinase produced spontaneously by a constitutive…
We wish to express our thanks to Dr Melvin Cohn for much valuable advice during the preliminary work on methods of purification, and one of us (M.R.P.) is greatly indebted to Dr Jacques Monod of the… Expand
  • 112
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THE DIFFERENTIAL EFFECT OF ACTINOMYCIN D ON THE BIOSYNTHESIS OF ENZYMES IN BACILLUS SUBTILIS AND BACILLUS CEREUS.
  • M. Pollock
  • Biology, Medicine
  • Biochimica et biophysica acta
  • 1963
Relatively low concentrations (0.05–0.1 μg/ml) of actinomycin D cause marked inhibition of the growth of Bacillus cereus and Bacillus subtilis and have a striking differential effect on enzyme… Expand
  • 90
The measurement of the liberation of penicillinase from Bacillus subtilis.
  • M. Pollock
  • Biology, Medicine
  • Journal of general microbiology
  • 1 October 1961
SUMMARY: The formation of penicillinase, induced in a growing culture of Bacillus subtilis 6346 by a single addition of benzylpenicillin, spontaneously ceases after about 3 hr. The enzyme continues,… Expand
  • 62
Low Cyst(e)ine Content of Bacterial Extracellular Proteins: Its Possible Physiological Significance
Low Cyst(e)ine Content of Bacterial Extracellular Proteins: Its Possible Physiological Significance
  • 52
PURIFICATION AND PROPERTIES OF PENICILLINASES FROM TWO STRAINS OF BACILLUS LICHENIFORMIS: A CHEMICAL, PHYSICOCHEMICAL AND PHYSIOLOGICAL COMPARISON.
  • M. Pollock
  • Medicine, Biology
  • The Biochemical journal
  • 1 March 1965
1. The penicillinases formed by penicillinase-constitutive mutant strains from two closely related varieties (749 and 6346) of Bacillus licheniformis have been isolated, characterized and compared.… Expand
  • 146
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