1m0g
From Proteopedia
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'''Solution structure of the alpha domain of mt_nc''' | '''Solution structure of the alpha domain of mt_nc''' | ||
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[[Category: Spadaccini, R.]] | [[Category: Spadaccini, R.]] | ||
[[Category: Temussi, P A.]] | [[Category: Temussi, P A.]] | ||
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Revision as of 21:29, 2 May 2008
Solution structure of the alpha domain of mt_nc
Overview
The structure of [113Cd(7)]-metallothionein (MT_nc) of the Antarctic fish Notothenia coriiceps, the first three-dimensional structure of a fish metallothionein, was determined by homonuclear 1H NMR experiments and heteronuclear [1H, 113Cd]-correlation spectroscopy. MT_nc is composed of an N-terminal beta domain with 9 cysteines and 3 metal ions and a carboxy-terminal alpha-domain with 11 cysteines and 4 metal ions. The position of the ninth Cys of the alpha domain of MT_nc is different from the corresponding Cys of mammalian MTs. As a result, the last CXCC motif in the mammalian MT sequence becomes CXXXCC in the fish MT. This difference leads to a structural change of the alpha domain and, in turn, to a different charge distribution with respect to that observed in mammalian metallothioneins.
About this Structure
1M0G is a Single protein structure of sequence from Notothenia coriiceps. Full crystallographic information is available from OCA.
Reference
Solution structure of MT_nc, a novel metallothionein from the Antarctic fish Notothenia coriiceps., Capasso C, Carginale V, Crescenzi O, Di Maro D, Parisi E, Spadaccini R, Temussi PA, Structure. 2003 Apr;11(4):435-43. PMID:12679021 Page seeded by OCA on Sat May 3 00:29:00 2008
