instruction:
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.
question:
UV cross - linking and Southwestern analysis suggested that KTP1 is a DNA - binding protein clearly distinct from AP2 , and this protein may be responsible for the basal keratinocyte - specific expression of the BPAG1 gene .
answer:
BPAG1 gene

question:
The adoption of a twisted structure of importin - beta is essential for the protein - protein interaction required for nuclear transport .
answer:
importin - beta

question:
We have utilized transient transfections , mutation analysis , electromobility gel - shifts , and immunoblot analysis to test the hypothesis that expression of the CTalpha gene is controlled in part by the binding of three trans - acting nuclear factors , Sp1 , Sp2 , and Sp3 .
answer:
CTalpha gene