Correlating CpG islands, motifs, and sequence variants in human chromosome 21
نویسندگان
چکیده
منابع مشابه
Allelic methylation status of CpG islands on chromosome 21q in patients with Trisomy 21.
Trisomy 21 is a chromosomal condition caused by the presence of all or part of an extra 21st chromosome. There has been limited research into the DNA methylation status of CpG islands (CGIs) in trisomy 21, therefore, exploring the DNA methylation status of CGIs in 21q is essential for the development of a series of potential epigenetic biomarkers for prenatal screening of trisomy 21. First, DNA...
متن کاملThe DNA sequence of human chromosome 21 The chromosome 21 mapping and sequencing consortium
The chromosome 21 mapping and sequencing consortium M. Hattori*, A. Fujiyama*, T. D. Taylor*, H. Watanabe*, T. Yada*, H.-S. Park*, A. Toyoda*, K. Ishii*, Y. Totoki*, D.-K. Choi*, E. Soeda2, M. Ohki3, T. Takagi§, Y. Sakaki*§; S. Taudienk, K. Blechschmidtk, A. Polleyk, U. Menzelk, J. Delabar¶, K. Kumpfk, R. Lehmannk, D. Patterson#, K. Reichwaldk, A. Rumpk, M. Schillhabelk, A. Schudyk, W. Zimmerma...
متن کاملComprehensive analysis of CpG islands in human chromosomes 21 and 22.
CpG islands are useful markers for genes in organisms containing 5-methylcytosine in their genomes. In addition, CpG islands located in the promoter regions of genes can play important roles in gene silencing during processes such as X-chromosome inactivation, imprinting, and silencing of intragenomic parasites. The generally accepted definition of what constitutes a CpG island was proposed in ...
متن کاملCpG islands in human ZFX and ZFY and mouse Zfx genes: sequence similarities and methylation differences.
The human ZFX, human ZFY, and mouse Zfx genes have CpG islands near their 5; ends. These islands are typical in that they span about 1.5 kb, contain transcription initiation sites, and encompass some 5' untranslated exons and introns. However, comparitive nucleotide sequencing of these human and mouse islands provided evidence of evolutionary conservation to a degree unprecedented among mammali...
متن کاملIslands of euchromatin-like sequence and expressed polymorphic sequences within the short arm of human chromosome 21.
The goals of the human genome project did not include sequencing of the heterochromatic regions. We describe here an initial sequence of 1.1 Mb of the short arm of human chromosome 21 (HSA21p), estimated to be 10% of 21p. This region contains extensive euchromatic-like sequence and includes on average one transcript every 100 kb. These transcripts show multiple inter- and intrachromosomal copie...
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ژورنال
عنوان ژورنال: BMC Genomics
سال: 2011
ISSN: 1471-2164
DOI: 10.1186/1471-2164-12-s2-s10