... b5 strand) of D3 and F27/Y289 (b2 strand), L67/M324, V70/I327 and L72/L328 (all in b4 strand) of B The second cluster consists of P6/M267, L10/ L271 (both in a-helix), V18/C279 (b1 strand), L32/F293 ... solution structures of the UBL domain of hHR23A/B bound to a UIM peptide of S5a [99,119] could be used to model the complex of hHR23A/B and ataxin-3 Similarly, the complex of a UIM of ataxin-3 with ... detailed analysis of ataxin-2 homologues including the yeast homologue Pbp1, using a structurebased multiple sequence alignment of Sm and Sm-like proteins and a 3D model of the Lsm domain of ataxin-2...