Complex sentence: Low density lipoprotein receptor-related protein associated protein 1 (gene name LRPAP1), also known as RAP, is a chaperone protein involved with trafficking of certain members of the LDL receptor family including LRP1 and LRP2.
Split into simpler sentences: Low density lipoprotein receptor-related protein associated protein 1 also known as LRPAP1 or RAP is a chaperone protein which in humans is encoded by the LRPAP1 gene. LRPAP1 is involved with trafficking of certain members of the LDL receptor family including LRP1 and LRP2.