41. |
- Russom, Aman, et al.
(författare)
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Ultra-rapid melting curve analysis on beads for high-throughput genotyping of single nucleotide polymorphism
- 2005
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Ingår i: Micro Total Analysis Systems - Proceedings of MicroTAS 2005 Conference. - : Transducers Research Foundations. - 9780974361116 ; , s. 1006-1008
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Konferensbidrag (refereegranskat)abstract
- This report describes a rapid solid-phase melting curve analysis method based on dynamic allele-specific hybridization (DASH) for single nucleotide polymorphism (SNP) genotyping. Beads with DNA duplexes are immobilized on the surface of a microheater chip. SNP on PCR products were scored, illustrating the sensitivity and robustness of the system. Single-bead detection and multiplexing were performed with a heating rate more than 20 times faster than conventional DASH. Hence, analyses that took more than 15 minutes could be performed in less than 1 minute, enabling ultra-rapid SNP analysis.
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42. |
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43. |
- Swanberg, Maria, et al.
(författare)
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MHC2TA is associated with differential MHC molecule expression and susceptibility to rheumatoid arthritis, multiple sclerosis and myocardial infarction
- 2005
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Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1061-4036 .- 1546-1718. ; 37:5, s. 486-494
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Tidskriftsartikel (refereegranskat)abstract
- Antigen presentation to T cells by MHC molecules is essential for adaptive immune responses. To determine the exact position of a gene affecting expression of MHC molecules, we finely mapped a previously defined rat quantitative trait locus regulating MHC class II on microglia in an advanced intercross line. We identified a small interval including the gene MHC class II transactivator (Mhc2ta) and, using a map over six inbred strains combined with gene sequencing and expression analysis, two conserved Mhc2ta haplotypes segregating with MHC class II levels. In humans, a -168A --> G polymorphism in the type III promoter of the MHC class II transactivator (MHC2TA) was associated with increased susceptibility to rheumatoid arthritis, multiple sclerosis and myocardial infarction, as well as lower expression of MHC2TA after stimulation of leukocytes with interferon-gamma. We conclude that polymorphisms in Mhc2ta and MHC2TA result in differential MHC molecule expression and are associated with susceptibility to common complex diseases with inflammatory components.
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