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A 684-residue mitochondrial protein involved in mitochondrial DNA (mtDNA) metabolism, which may function as an adenine nucleotide-dependent DNA helicase and be a key regulator of mtDNA copy number in mammals. Twinkle is thought to be critical for lifetime maintenance of mtDNA integrity
References in periodicals archive ?
Because it flashed and twinkled more than all other jewels because it was clockwork.
The Chelengk vibrated in the sunlight out-twinkling all that twinkled.
2 : to appear bright with amusement <His eyes twinkled at the joke.