Human phosphatidylcholine transfer protein: purification, crystallization and preliminary X-ray diffraction data

Abstract

We have expressed, purified and crystallized recombinant human phosphatidylcholine transfer protein (PC-TP) and selenomethionyl PC-TP bound to dilinoleoyl phosphatidylcholine. The biochemical properties of native and selenomethionyl PC-TP were indistinguishable, and the two proteins crystallized under similar conditions. Both native and selenomethionyl PC-TP crystallized in two distinct space groups and diffracted X-rays to 2.4 Å resolution.