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:  Cotransfection of a junB stimulated the basal activity of the alpha 2 ( I ) collagen promoter 93 - fold , respectively .

A: alpha 2
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Q:  The delta Mo + SV tumor DNAs from B - lineage tumors were typically rearranged at the immunoglobulin gene loci and contained germ line configurations of the T - cell receptor beta gene .

A: immunoglobulin gene loci
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Q:  Although analysis of the similarity between the 44 - kDa protein and the E . coli RecA protein did not show any significant homology between them , it revealed their identity by five amino - acid residues involved in the formation of the epitope that recognized the paratope of the RecA protein antibody for subsequent epitope - paratope binding of these proteins .

A:
RecA protein antibody
****