Parts exchange: Why molecular machines are like used cars

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JournalBiologist
DatePublished - 1 Feb 2008
Issue number1
Volume55
Number of pages7
Pages (from-to)33-39
Original languageEnglish

Abstract

Proteins, so small that one billion would fit on a full stop, carry out most of the vital activities in living cells; they drive chemical reactions, transport cargoes, communicate with the outside world and even segregate chromosomes. A novel approach now allows us to monitor single proteins in complicated molecular machines, and it seems that biological components wear out and get replaced just as they do in man-made machines.

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