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排序方式: 共有135条查询结果,搜索用时 31 毫秒
131.
Assembly of microarrays for genome-wide measurement of DNA copy number. 总被引:20,自引:0,他引:20
A M Snijders N Nowak R Segraves S Blackwood N Brown J Conroy G Hamilton A K Hindle B Huey K Kimura S Law K Myambo J Palmer B Ylstra J P Yue J W Gray A N Jain D Pinkel D G Albertson 《Nature genetics》2001,29(3):263-264
We have assembled arrays of approximately 2,400 BAC clones for measurement of DNA copy number across the human genome. The arrays provide precise measurement (s.d. of log2 ratios=0.05-0.10) in cell lines and clinical material, so that we can reliably detect and quantify high-level amplifications and single-copy alterations in diploid, polyploid and heterogeneous backgrounds. 相似文献
132.
Saison C Helias V Ballif BA Peyrard T Puy H Miyazaki T Perrot S Vayssier-Taussat M Waldner M Le Pennec PY Cartron JP Arnaud L 《Nature genetics》2012,44(2):174-177
The breast cancer resistance protein, also known as ABCG2, is one of the most highly studied ATP-binding cassette (ABC) transporters because of its ability to confer multidrug resistance. The lack of information on the physiological role of ABCG2 in humans severely limits cancer chemotherapeutic approaches targeting this transporter. We report here that ABCG2 comprises the molecular basis of a new blood group system (Junior, Jr) and that individuals of the Jr(a-) blood type have inherited two null alleles of ABCG2. We identified five frameshift and three nonsense mutations in ABCG2. We also show that the prevalence of the Jr(a-) blood type in the Japanese and European Gypsy populations is related to the p.Gln126* and p.Arg236* protein alterations, respectively. The identification of ABCG2(-/-) (Jr(a-)) individuals who appear phenotypically normal is an essential step toward targeting ABCG2 in cancer and also in understanding the physiological and pharmacological roles of this promiscuous transporter in humans. 相似文献
133.
Kato N Takeuchi F Tabara Y Kelly TN Go MJ Sim X Tay WT Chen CH Zhang Y Yamamoto K Katsuya T Yokota M Kim YJ Ong RT Nabika T Gu D Chang LC Kokubo Y Huang W Ohnaka K Yamori Y Nakashima E Jaquish CE Lee JY Seielstad M Isono M Hixson JE Chen YT Miki T Zhou X Sugiyama T Jeon JP Liu JJ Takayanagi R Kim SS Aung T Sung YJ Zhang X Wong TY Han BG Kobayashi S Ogihara T Zhu D Iwai N Wu JY Teo YY Tai ES Cho YS He J 《Nature genetics》2011,43(6):531-538
We conducted a meta-analysis of genome-wide association studies of systolic (SBP) and diastolic (DBP) blood pressure in 19,608 subjects of east Asian ancestry from the AGEN-BP consortium followed up with de novo genotyping (n = 10,518) and further replication (n = 20,247) in east Asian samples. We identified genome-wide significant (P < 5 × 10(-8)) associations with SBP or DBP, which included variants at four new loci (ST7L-CAPZA1, FIGN-GRB14, ENPEP and NPR3) and a newly discovered variant near TBX3. Among the five newly discovered variants, we obtained significant replication in the independent samples for all of these loci except NPR3. We also confirmed seven loci previously identified in populations of European descent. Moreover, at 12q24.13 near ALDH2, we observed strong association signals (P = 7.9 × 10(-31) and P = 1.3 × 10(-35) for SBP and DBP, respectively) with ethnic specificity. These findings provide new insights into blood pressure regulation and potential targets for intervention. 相似文献
134.
Genetic factors affect sleep. Studies in twin pairs demonstrate that the strong hereditary influences on sleep architecture
and some sleep disorders are transmitted through families. Evidence like this strongly suggests that sleep regulation receives
significant influence from genetic factors. Although recent molecular technologies have revealed evidence that genetic traits
or gene products trigger particular changes in sleep electroencephalogram activity, we are still far from finding candidate
genes or multiple mutations responsible for individual sleep disorders. Sleep is a very complex phenotype. Genetic susceptibility
and environmental factors should be also considered as contributors to sleep phenotype. The aim of this review is to present
a current summary and future prospects for genetic studies on sleep and selected sleep-associated disorders.
An erratum to this article is available at . 相似文献
135.
Germline gain-of-function mutations in RAF1 cause Noonan syndrome 总被引:11,自引:0,他引:11
Razzaque MA Nishizawa T Komoike Y Yagi H Furutani M Amo R Kamisago M Momma K Katayama H Nakagawa M Fujiwara Y Matsushima M Mizuno K Tokuyama M Hirota H Muneuchi J Higashinakagawa T Matsuoka R 《Nature genetics》2007,39(8):1013-1017
Noonan syndrome is characterized by short stature, facial dysmorphia and a wide spectrum of congenital heart defects. Mutations of PTPN11, KRAS and SOS1 in the RAS-MAPK pathway cause approximately 60% of cases of Noonan syndrome. However, the gene(s) responsible for the remainder are unknown. We have identified five different mutations in RAF1 in ten individuals with Noonan syndrome; those with any of four mutations causing changes in the CR2 domain of RAF1 had hypertrophic cardiomyopathy (HCM), whereas affected individuals with mutations leading to changes in the CR3 domain did not. Cells transfected with constructs containing Noonan syndrome-associated RAF1 mutations showed increased in vitro kinase and ERK activation, and zebrafish embryos with morpholino knockdown of raf1 demonstrated the need for raf1 for the development of normal myocardial structure and function. Thus, our findings implicate RAF1 gain-of-function mutations as a causative agent of a human developmental disorder, representing a new genetic mechanism for the activation of the MAPK pathway. 相似文献