This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1m0g
From Proteopedia
| |||||||
| Ligands: | |||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
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 Thu Mar 20 12:37:20 2008
