Structure of the interleukin-2 tyrosine kinase Src homology 2 domain; comparison between X-ray and NMR-derived structures

The interleukin-2 tyrosine kinase Src homology 2 domain was crystallized and its structure was solved to 2.35 Å resolution. The structure reveals a domain-swapped dimer that is related to other dimeric SH2 domains solved previously. The cis–trans-prolyl isomerization that is evident from solution studies of Itk SH2 cannot be observed in the crystal structure.

Crystallization and preliminary X-ray crystallographic analysis of the Bag2 amino-terminal domain from Mus musculus

The amino-terminal domain of the Hsp70 co-chaperone Bag2 from M. musculus has been crystallized in native and selenomethionyl forms diffracting to 2.27 and 3.1 Å resolution, respectively.