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A recent study in BMC Evolutionary Biology shows that many of the open reading frames in mammalian Hox genes are more conserved than expected on the basis of their protein sequence. The presence of highly conserved DNA elements is thus not confined to the ...
BACKGROUND: Organisms are able to anticipate changes in the daily environment with an internal oscillator know as the circadian clock. Transcription is an important mechanism in maintaining these oscillations. Here we explore, using whole genome tiling arr ...
Virtually every cell in our body tracks daily time using an endogenous mechanism called the circadian clock, which has a period of about 24 hours. This timing system offers a selective advantage by enabling organisms to anticipate periodic changes in envir ...
Angiogenesis is the process by which new blood vessels arise from existing ones by the budding out of endothelial cell capillaries from the luminal side of blood vessels. Blood vessel formation is essential for organ development during embryogenesis and is ...
Hox genes control many aspects of embryonic development in metazoans. Previous analyses of this gene family has revealed a surprising diversity in terms of gene number and organization between various animal species. In vertebrates, Hox genes are grouped i ...
Telomeres are transcribed into telomeric repeat-containing RNA (TERRA), large, heterogeneous, noncoding transcripts which form part of the telomeric heterochromatin. Despite a large number of functions that have been ascribed to TERRA, little is known abou ...
Drosophila melanogaster has one of the best characterized metazoan genomes in terms of functionally annotated regulatory elements. To explore how these elements contribute to gene regulation, we need convenient tools to identify the proteins that bind to t ...
Finding sequences that control expression of genes is central to understanding genome function. Previous studies have used evolutionary conservation as an indicator of regulatory potential. Here, we present a method for the unbiased in vivo screen of putat ...
Hox genes are central to the specification of structures along the anterior-posterior body axis, and modifications in their expression have paralleled the emergence of diversity in vertebrate body plans. Here we describe the genomic organization of Hox clu ...
Over the course of evolution, retroviruses and their hosts have been in constant conflict, resulting in a long-term evolutionary "arms race" in which host and pathogen alternately gain selective advantages through functional innovations. On the host side, ...