PTB Proteins Induce RNA Looping
Lamichhane, Daubner et al., PNAS
Researchers in the US and Switzerland report that polypyrimidine tract-binding proteins induce RNA looping ― a finding they deduced using FRET, NMR spectroscopy, and in vivo splicing data. They show that two PTB RNA recognition motifs can bind two distant pyrimidine tracts, bringing their 5' and 3' ends in close proximity, thus inducing loop formation.
Norwegian Consortium Assembles, Annotates Cod Genome from 454 Data
The cod is among the first vertebrates to have its genome assembled entirely from next-generation shotgun sequencing data. In a second project phase, which may also involve short-read sequencing technologies, the researchers plan to fill in gaps in the genome, improve the annotation, and sequence the transcriptomes and genomes of additional cod samples from different geographic areas.
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