When a group of British scientists studied which proteins might be in the wrong place of the cell in amyotrophic lateral sclerosis (ALS) patients, they found hundreds of them mislocalized. Other studies had shown that TDP-43 protein was mislocalized. But it was not known that the phenomenon was widespread, and affected mRNA as well as proteins. “Our study revealed that these mislocalized proteins were heavily involved in RNA binding functions and exhibited high binding affinities to RNAs,” Rickie Patani told BioWorld.