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.

Q:  The Valpha and Vbeta domains have the canonical features of known teleost and mammalian TCR V domains , including conserved residues in the beginning of FR2 and at the end of FR3 .

A: Vbeta domains
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Q:  The nucleoporin 98 gene ( NUP98 ) , which is rearranged in several acute myeloid leukemia translocations , is located within this region .

A: nucleoporin 98 gene
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Q:  We have used the chloramphenicol acetyltransferase ( CAT ) reporter gene system to study the effect of T on the long terminal repeats ( LTRs ) of a large family of human endogenous retrovirus - like sequences , RTVL - H .

A:
chloramphenicol acetyltransferase
****