Linkage analysis was undertaken in seven French families with facioscapulohumeral muscular dystrophy (FSHD). Six polymorphic DNA probes were studied, including random DNA sequences, coding sequences, and a hypervariable marker. No evidence for linkage of these probes to the disease was detected, and the results exclude probable location of the FSHD gene from three chromosomal regions (16p, prox...

CdTe nanocrystals capped by cysteamine were synthesized to study Cr(V)-induced genotoxicity. On the surface of TiO2 thin films, the stepwise process of DNA breakage induced by Cr(V)-GSH complexes was vividly observed by using CdTe-DNA self-assembled fluorescent probes; in acetate buffer solution, an analytical method was developed to detect Cr(V)-induced genotoxicity with CdTe fluorescent probes.

Efficient predictors of the response to chemotherapy is an important issue because such predictors would make it possible to give the patients the most appropriate chemotherapy regimen. DNA microarrays appear to be of high interest for the design of such predictors. In this article we propose bayesian classifiers taking as input the expression levels of DNA probes, and a ‘filtering’ method for ...

ABI PRISM 3100 Genetic Analyzer, a multi-color fluorescence-based DNA analysis system with 16 capillaries operating in parallel, was ideal tool both for DNA sequencing and DNA fragment analysis [1,2]. To demonstrate the effectiveness and reliability of an asymmetric PCR-Based approach (X.Y. Ling, G.M. Zhang, G. Pan, H. Long, Y.H. Cheng, C.Y. Xiang, L. Kang, F. Chen, Z.N. Chen, Preparing long pr...

Haemophilus ducreyi ATCC 33922, a virulent, well-characterized strain, was used to construct a genomic library in a bacteriophage expression vector. Three DNA fragments were selected for use as probes on the basis of their ability to encode H. ducreyi-specific proteins, as demonstrated by reactivity with rabbit polyclonal antiserum. With DNA-DNA hybridization, the three probes, labeled with 32P...

The human herpes simplex virus type 1 regulatory protein ICP4 binds DNA as a dimer and forms a single protein-DNA complex (A complex) with short DNA probes. ICP4 oligomerized in a DNA-dependent manner, forming two or more protein-DNA complexes with longer DNA fragments containing a single DNA binding site. When resolved electrophoretically, one or more low-mobility DNA-protein complexes follow ...

DNA methylation is an important epigenetic event that effects gene expression during development and various diseases such as cancer. Understanding the mechanism of action of DNA methylation is important for downstream analysis. In the Illumina Infinium HumanMethylation 450K array, there are tens of probes associated with each gene. Given methylation intensities of all these probes, it is neces...

The hybridizations between the HIV target DNA and the capture probes as well as the signal probes conjugated to the multi-invertase/nanoparticle composites lead to the conversion of sucrose to glucose, which is monitored by the personal glucometer and provides quantitative digital readings for point-of-care diagnosis of HIV DNA fragments.

BACKGROUND The majority of established techniques for monitoring real-time PCR amplification involve individual target-specific fluorogenic probes. For analysis of numerous different targets the synthesis of these probes contributes to the overall cost during assay development. Sequence-dependent universal detection techniques overcome this drawback but are prone to detection of unspecific ampl...

A set of universal degenerate primers which amplified, by PCR, a 600-bp oligomer encoding a portion of the 60-kDa heat shock protein (HSP60) of both Staphylococcus aureus and Staphylococcus epidermidis were developed. However, when used as a DNA probe, the 600-bp PCR product generated from S. epidermidis failed to cross-hybridize under high-stringency conditions with the genomic DNA of S. aureu...