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 STP1 locus is located on chromosome IV close to at least two other genes involved in RNA splicing : PRP3 and SPP41 .
[A]: STP1 locus


[Q]:  Cellular lysates were analyzed for luciferase and beta - galactosidase activities .
[A]: beta - galactosidase


[Q]:  The results of the transient - transfection assay showed that the Sp1 binding element located in the core region ( positions - - 64 to + 1 ) of the alpha2 - integrin promoter plays an essential role in the alpha2 - integrin promoter activity and its downregulation by Erb - B2 .
[A]:
Sp1 binding element