D L Hartley
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Explore the profile of D L Hartley including associated specialties, affiliations and a list of published articles.
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12
Citations
216
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Recent Articles
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Hill R, Hartley D
Appl Opt
. 2010 Feb;
13(1):186-92.
PMID: 20125942
A simple optical system is described that makes use of a unique property of ellipsoidal mirrors, viz., light brought to one focus will be reflected alternately through the two foci...
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Benbadis L, Garel J, Hartley D
Appl Environ Microbiol
. 1991 Dec;
57(12):3677-8.
PMID: 1785940
SslI, a type II restriction endonuclease, was purified from Streptococcus salivarius subsp. thermophilus strain BSN 45. SslI is an isoschizomer of BstNI. SslI activity was maximum at pH 8.8, 0...
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Hartley D, Jones K, Tobian J, Leblanc D, Macrina F
Infect Immun
. 1984 Jul;
45(1):13-7.
PMID: 6329954
A DNA sequence specifying tetracycline resistance (Tcr) has been previously cloned from a clinical isolate of Streptococcus mutans designated U202 (J. A. Tobian and F. L. Macrina, J. Bacteriol. 152:215-222,...
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Hartley D, Speedie M
Biochem J
. 1984 May;
220(1):309-13.
PMID: 6743267
A C-methyltransferase that catalyses the transfer of a methyl group from S-adenosylmethionine to C-3 of tryptophan, resulting in beta-methyltryptophan, has been identified in cell-free extracts of streptonigrin-producing Streptomyces flocculus. The...
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Speedie M, Hartley D
J Antibiot (Tokyo)
. 1984 Feb;
37(2):159-66.
PMID: 6706852
The enzyme activities which catalyze the conversion of tryptophan to beta-methyltryptophan by two different routes have been demonstrated in cell-free extracts of streptonigrin-producing Streptomyces flocculus. The first route involves direct...
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Macrina F, Evans R, Tobian J, Hartley D, Clewell D, Jones K
Gene
. 1983 Nov;
25(1):145-50.
PMID: 6319229
A novel plasmid vector that is able to replicate both in Escherichia coli and in Streptococcus sanguis is described. This 9.2-kb plasmid, designated pVA856, carries Cmr, Tcr, and Emr determinants...