Social identities are relational; groups typically define themselves in relation to others. This is because identity has little meaning without the “other”. So, by defining itself a group defines others. Iden
Ca2+ ions are bound within the turns between two strands by a repeated GGXGXD sequence motif (where X is any amino acid), meaning that each nonapeptide motif forms two half-sites for calcium ion binding between two turns. (B) 3D view looking down the axis of the β-roll including the...
Metallacarboranes are 3-dimensional cluster compounds that in general can exist in a number of isomeric forms which cannot always be distinguished spectroscopically, in which case crystallographic study is the essential experimental technique [4]. A good example concerns the icosahedral metallacarborane...