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]: Pax - 6 constructs lacking the C - terminal activation domain repressed betaB1 - crystallin promoter activity as effectively as the full - length protein , but the PD alone or Pax - 6 ( 5a ) , a splice variant with an altered PD affecting its DNA binding specificity , did not .
[A]: Pax - 6

[Q]: Protein sequencing , electrophoretic mobility shift assay , and immunoblot analyses identify p54 and p47 / 48 as members of the hepatocyte nuclear factor 3 ( HNF3 [ forkhead ] ) family of transcription factors .
[A]: p47 / 48

[Q]: A V1 mutant generated in vivo with 11 of the 14 N - terminal amino acids altered , was viable and produced symptoms typical of a wild - type infection .
[A]:
V1 mutant