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Bioscience

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Displaying 1051 - 1075 of 1280

Standardization of PCR Amplification for Fragile X Trinucleotide Repeat Measurements

January 1, 2002
Author(s)
C D. O'Connell, Donald H. Atha, J P. Jakupciak, Kristy L. Richie
To provide the clinical diagnostics community with accurate protocols and measurements for the detection of genetic disorders, we have established a quantitative a quantitative measurement program for trinucleotide repeats associated with human disease. In

Dominant Thermodynamic Role of the Third Independent Receptor Binding Site in the Receptor-Associated Protein RAP

December 18, 2001
Author(s)
O M. Andersen, Frederick P. Schwarz, Edward Eisenstein, C Jacobsen, S K. Moestrup, M Etzerodt, H C. Thogersen
The 39 Kda receptor-associated protein (RAP) is a three-domain escort protein in the secretory pathway for several members of the low-density lipoprotein receptor (LDLR) family of endocytic receptors, including the LDLR-related protein (LRP). The minimal

The Cockayne Syndrome Group B Gene Product is Involved in General Genome Base Excision Repair of 8-hydroxyguanine in DNA

December 7, 2001
Author(s)
J Tuo, M Muftuoglu, C Chen, Pawel Jaruga, R R. Selzer, R M. Brosh, H Rodriguez, Miral M. Dizdar, V. Bohr
Cockayne Syndrome (CS) is a human genetic disorder with two complementation groups, CS-A and CS-B. The CSB gene product is involved in transcription-coupled repair of DNA damage but may participate in other pathways of DNA metabolism. The present study

Development of Y STR Megaplex Assays

December 1, 2001
Author(s)
R Schoske, John Butler, Peter Vallone, Margaret C. Kline, M. Prinz, A J. Redd, M F. Hammer
Y Chromosome short tandem repeat markers have a number of applications in human identity testing including typing the perpetrator of sexual assault cases without differential extraction and tracing paternal lineages for missing person investigations. In

Turkish Population Data With the CODIS Multiplex Short Tandem Repeat Loci

December 1, 2001
Author(s)
B S. Akbasak, B. Budowle, D J. Reeder, J Redman, Margaret C. Kline
Allele frequencies for thirteen tetrameric short tandem repeat (STR) loci, CSF1PO, D18S51, D3S1358, D21S11, D5S818, FGA, D7S820, HUMTH01, D8S1179, TPOX, D13S317, VWA, and D16S539 were determined on 198 Turkish blood samples.

Intron and Exons

October 17, 2001
Author(s)
Arlin B. Stoltzfus
An intron (or intervening sequence) is a segment of RNA excised from a gene transcript, with concomitant ligation of flanking segments called exons. Introns of some type are found in every kingdom of cellular life, and also in viruses, bacteriophages and

Temperature Measurement and Control in Microfluidic Systems

October 1, 2001
Author(s)
David J. Ross, Michael Gaitan, Laurie E. Locascio
We describe a technique for the measurement of fluid temperatures in microfluidic systems based on temperature-dependent fluorescence. The technique is easy to implement with a standard fluorescence microscope and CCD camera. The efficiency of the method

The Crystal Structure of Chorismate Lyase Shows a New Fold and a Tightly Retained Product

August 15, 2001
Author(s)
David T. Gallagher, M P. Mayhew, Marcia J. Holden, A J. Howard, K J. Kim, V L. Vilker
The enzyme chorismate lyase (CL) catalyzes the removal of pyruvate from chorismate to produce 4-hydroxy benzoate (4HB) for the ubiquinone pathway. In Escherichia coli, CL is monomeric with 164 residues; we have determined the structure of the CL product

Raman and FTIR Spectroscopies of Fluorescein in Solutions

August 1, 2001
Author(s)
Lili Wang, A. E. Roitberg, Curtis W. Meuse, Adolfas K. Gaigalas
Raman and FTIR transform-infra red (FT-IR) spectroscopies of fluorescein in aqueous solutions have been investigated in the pH range from 9.1 to 5.4. At pH 9.1 fluorescein is in the dianion form. At pH 5.4, fluorescein is a mixture of monoanion (
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