2155
That of the T2 gene contains numerous potential sites for binding the mammalian transcription factor SP1 , but no TATA or CCAAT sequences are evident near to its 5 ' end , although these latter features are associated with the human T1 gene .
 T2 gene, mammalian transcription factor SP1, human T1 gene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 T2 gene, mammalian transcription factor SP1, human T1 gene