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.

 The RTI40 gene spans 35 kilobase pairs ; it contains 6 exons and at least 6 rat Identifier repetitive elements .
RTI40 gene

 The first operon , orf1 - tolQRA , is iron regulated throughout growth , but iron - regulated expression of tolB and oprL fusions occurs only in late log phase .
oprL fusions

 Foamy viruses ( FVs ) express the Gag protein as a precursor with a molecular mass of 74 kDa ( pr74 ) from which a 70 - kDa protein ( p70 ) is cleaved by the viral protease .

Gag protein