A functional peptidyl-tRNA hydrolase, ICT1, has been recruited into the human mitochondrial ribosome.
Richter R, Rorbach J, Pajak A, Smith PM, Wessels HJ, Huynen MA, Smeitink JA, Lightowlers RN, Chrzanowska-Lightowlers ZM. EMBO J. 2010 Mar 17; 29(6):1116-25. Epub 2010 Feb 25.