Human mitochondrial DNA deletions associated with mutations in the gene encoding Twinkle, a phage T7 gene 4-like protein localized in mitochondria. by Spelbrink, J, Li, F, Tiranti, V, Nikali, K, Yuan, Q, Tariq, M, Wanrooij, S, Garrido, N, Comi, G, Morandi, L, Santoro, L, Toscano, A, Fabrizi, G, Somer, H, Croxen, R, Beeson, D, Poulton, J, Suomalainen, A, Jacobs, H, Zeviani, M, Larsson, C