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Vegetation in grasslands is changing at an unprecedented rate. In the Nebraska Sandhills, this shift is attributed in part to encroachment of the woody species Juniperus virginiana. We investigated changes in resource availability and their feedback on seasonal trends in photosynthetic characteristics of J. virginiana trees scattered in open grasslands vs. a dense 57-year-old stand. Dense stand exhibited...
Light meromyosin (LMM 77), the C-terminal proteolytic peptide from myosin rod, is a 900 A coiled-coil that contains two pairs of tryptophan residues in d-positions of the heptad repeat (abcdefg) n . Previous studies showed that LMM 77 unfolded in two transitions and suggested that both Trp pairs were located in the least stable unfolding domain. Here, the thermal and denaturant unfolding properties...
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