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A cell-permeable peptide is constructed that is derived from a region of an essential autophagy protein called beclin 1; the peptide is a potent inducer of autophagy in mammalian cells and in vivo in mice, and is effective in the clearance of several viruses.
The formation of Ising quasiparticles in URu2Si2 results from ‘hastatic’ order, which breaks double time-reversal symmetry, mixing states of integer and half-integer spin, and accounts for the large entropy of condensation and the magnetic anomaly observed in torque magnetometry.
Candida albicans is a prominent human fungal pathogen that until now was thought to be an obligate diploid; here it is shown that C. albicans can form viable haploids, that these haploids are able to mate to form heterozygous diploids, and that haploids and their auto-diploids are significantly less fit in vitro and in vivo than heterozygous progenitors or diploids formed by haploid mating pairs.
Reconstruction of the Eemian interglacial from the new NEEM ice core shows that in spite of a climate warmer by eight degrees Celsius in Northern Greenland than that of the past millennium, the ice here was only a few hundred metres lower than its present level.
The crystal structure of yeast Prp8 bound to a U5 small nuclear ribonucleoprotein particle assembly factor Aar2 is solved, offering insight into the architecture of the spliceosome active site, and supporting a possible common origin of eukaryotic pre-messenger-RNA splicing and group II intron splicing.
