Today, prices for folding bikes range from about $200 for basic models to more than $1,000 for designs that fold into tiny packages.
However, even for proteins that fold successfully to their native structure and hence escape the cellular quality control machinery, random conformational fluctuations of the native protein can lead to the transient formation of aggregation-prone intermediate states (see above).
This includes the entire unfolding regime and a significant part of a folding regime with a chevron rollover, as has been observed for real proteins that fold with non-two-state kinetics.
Only a limited number of plasmids have been analyzed for repeat sequences that fold into RNA motifs, but a more comprehensive search is necessary to assess their abundance.
There are many options available for sofas and ottomans that fold out into twin or double-sized beds.
Other comforts include corner shelves to hold cards and flowers, carpeted corridors, $30,000 patient beds that convert to easy chairs and plush window seats that fold out for family members who stay the night.
2001 G.M. MINIVANS: The mildly restyled 2001 Chevrolet Venture, Oldsmobile Silhouette and Pontiac Montana minivans, which go on sale in the fall, have second- and third-row seats that fold flat for a more usable cargo area.
Other selections are bicycles that fold, (great for storing in small New York apartments), scooters and more.
Check out travel stores and websites for neck pillows and blankets that fold to the size of a DVD case.
