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 presence of a short ( 70 bp ) intron near the N - terminus of the atX gene was predicted that contains the canonical GT and AG dinucleotides at its 5 ' - and 3 ' - splicing junctions .

A: atX gene
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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
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Q:  To determine the role of the transmembrane region of HN on fusion - promoting activity , mutant HN proteins were expressed and their biological activities examined .

A:
mutant HN proteins
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