Membranes were purified from rat muscle by a differential centrifugation method that avoids the use of salt extraction or incubations at elevated temperature. Three populations of membrane-limited ...

Hornet silk proteins contain both α-helices and β-sheets. 12 In addition, hornet silk contains coiled-coil structures, 10 which are a common feature of the silks of the social Hymenoptera (bees, ants ...

Fractions are the basis for most higher-level mathematics. Students need to master the numerical values in earlier grades to tackle topics like algebra later. There’s only one hitch: Fractions can ...

Figure 1: During the infusion of 13 C 6-labeled leucine, the fraction of labeled Aβ secreted by neurons increases from 0% to a theoretical maximum of 10% at the neuronal fractional synthesis rate.