In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

 Mapping the 5 ' and 3 ' termini of TED RNAs indicated that the LTRs have a retroviral U3 - R - U5 structural organization that is capable of directing the synthesis of transcripts that represent potential substrates for reverse transcription and intermediates in transposition .
TED RNAs