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G Tully

Publications and source records attributed to G Tully.

5 recordsLinked to original sources
PubMed1996

Rapid detection of mitochondrial sequence polymorphisms using multiplex solid-phase fluorescent minisequencing.

This work describes a novel method, multiplex solid-phase fluorescent minisequencing, for the simultaneous detection of several point mutations and/or small deletions and insertions. The method is applied to the analysis of mitochondrial DNA polymorphisms for the purposes of individual identification. A database of 152 British Caucasians and 103 British Afro-Caribbeans has been constructed, and the probability of a chance match between two unrelated individuals is calculated as 0.054 for Caucasians and 0.026 for Afro-Caribbeans.

Base Sequence↗
PubMed1994

Identification of the remains of the Romanov family by DNA analysis.

Nine skeletons found in a shallow grave in Ekaterinburg, Russia, in July 1991, were tentatively identified by Russian forensic authorities as the remains of the last Tsar, Tsarina, three of their five children, the Royal Physician and three servants. We have performed DNA based sex testing and short tandem repeat (STR) analysis and confirm that a family group was present in the grave. Analysis of mitochondrial (mt) DNA reveals an exact sequence match between the putative Tsarina and the three children with a living maternal relative. Amplified mtDNA extracted from the remains of the putative Tsar has been cloned to demonstrate heteroplasmy at a single base within the mtDNA control region. One of these sequences matches two living maternal relatives of the Tsar. We conclude that the DNA evidence supports the hypothesis that the remains are those of the Romanov family.

Base Sequence↗
PubMed1993

Analysis of 6 VNTR loci by 'multiplex' PCR and automated fluorescent detection.

The polymerase chain reaction was used to amplify six small variable number of tandem repeat loci in two reactions (D19S20 co-amplifying with D17S5 and D1S80; D17S766 co-amplifying with D16S83 and D17S24). When coupled with fluorescent detection of the products, this provides a rapid, highly discriminating automated test. Preferential amplification of small alleles, leading to 'allelic dropout' was found to occur in D19S20 and D16S83. Population databases are presented for Caucasians and Afro-Caribbeans at loci D19S20, D16S83 and D17S24, and for Asians at D19S20.

Alleles↗
PubMed1978

Use of stable 48Ca in the clinical measurement of intestinal calcium absorption.

Measurements of intestinal-calcium-absorption efficiency are fundamental for understanding calcium homeostasis in health and disease. Stable calcium isotopes are attractive tracers for such measurements, to avoid excessive radiation exposure to the subject and permit serial studies at short intervals. To realize this, we found it necessary to improve the sensitivity and precision of existing thermal neutron activation analyses for 48Ca. This report describes the details, sensitivity, precision, and accuracy of the improved method, and gives the results of studies in which intravenous 48Ca was used in conjunction with oral 47Ca to measure intestinal-calcium-absorption efficiency in patients.

Calcium↗