FUNCTION: TUBULIN IS THE MAJOR CONSTITUENT OF MICROTUBULES. IT BINDS TWO MOLES OF GTP, ONE AT AN EXCHANGEABLE SITE ON THE BETA CHAIN AND ONE AT A NONEXCHANGEABLE SITE ON THE ALPHA-CHAIN. * SUBUNIT: DIMER OF ALPHA AND BETA CHAINS. * DOMAIN: THE HIGHLY ACIDIC CARBOXYL-TERMINAL REGION MAY BIND CATIONS SUCH AS CALCIUM. * SIMILARITY: BELONGS TO THE TUBULIN FAMILY. |
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04-JAN-03
Last Update 13-Mar-03