We are looking for interested pre-doctoral and post-doctoral co-workers participating in the structure and function analysis of protein transport systems. Currently we focus on specific GTPases, membrane proteins and protein/RNA complexes (incl. the SRP system). The methods include X-ray structure analysis, biochemical and biophysical approaches. The aim is the quantitative analysis of protein transport across membranes, and especially of the dynamic changes in multi-subunit complexes, individual components and interfaces.