ABC-transporters are multispan membrane proteins that mediate the active uptake or efflux of specific substrates across various biological membrane systems. A functional ABC-transporter protein usually consists of two transmembrane domains and two ABCs.

“Growl you may, but go you must,” Lewrie laughed, clapping him on the shoulder in parting. “Old Navy proverb. Might be the Thirty-Seventh Article of War, hey, right after 'The Captain's Cloak'?”

However, at a neutral section just after Curriehill station, the pantograph unintendedly dropped. This is believed to have prevented the Class 92's rheostatic brakes, which had provided most of the braking power until then, from working.

Inside its exhibit hall, behind panes of glass, in a white-lit lab, a team of restorers works on an ancient Byzantine floor: 44 square yards of stone shards rescued from Lot’s Cave Monastery.