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eEF-1 is a eukaryotic elongation factor. Its α and βγ subunits act as counterparts to EF-Tu and EF-Ts, respectively Genes include: * EEF1A1, EEF1A2, EEF1A3 * EEF1B1, EEF1B2, EEF1B3, EEF1B4 * EEF1D, EEF1E1, EEF1G Various species of green algae, red algae, chromalveolates, and fungi lack the EF-1α gene but instead possess a related gene called EFL (elongation factor-like). Although its function has not been studied in depth, it appears to be similar to EF-1α. Only two organisms are known to have both EF-1α and EFL: the fungus ''Basidiobolus'' and the diatom ''Thalassiosira''. The evolutionary history of EFL is unclear. It may have arisen one or more times followed by loss of EFL or EF-1α. The presence in three diverse eukaryotic groups (fungi, chromalveolates, and archaeplastida) is supposed to be the result of two or more horizontal gene transfer events. ==References== 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「EEF-1」の詳細全文を読む スポンサード リンク
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