Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Western blot analyses and reverse transcriptase - polymerase chain reaction results indicate that both cells infected with a X4 strain and cells infected with a R5 strain are able to increase intracellular levels of STAT 1alpha and beta proteins as well as IRF - 1 mRNA .
Student:
IRF - 1