Deaf climbers with an artificial leg, and a person with epilepsy. Only two of the individuals in the group did not reach the summit. Heidi Zimmer is the first deaf woman to reach the summit of Mt. McKinley in Alaska. She is the first deaf individual to reach the summit of Mt. Kilimanjaro in Africa, as well as Mt. Elbrus in the Republic of Russia which has an elevation of 18,510 feet. She has a goal of completing the seven summits which consist of the highest peak in each continent. This is considered a huge accomplishment in the climbing world. Yasayuki Okobu,
MT-TF MT-TF Mitochondrially encoded tRNA phenylalanine also known as MT-TF is a transfer RNA which in humans is encoded by the mitochondrial "MT-TF" gene. The "MT-TF" gene is located on the p arm of the mitochondrial DNA at position 12 and it spans 71 base pairs. The structure of a tRNA molecule is a distinctive folded structure which contains three hairpin loops and resembles a three-leafed clover. MT-TF is a small transfer RNA (human mitochondrial map position 577-647) that transfers the amino acid phenylalanine to a growing polypeptide chain at the ribosome site of protein synthesis during translation. Mutations in "MT-TF"