1906
By introducing a series of deletions in the vimentin promoter , we further restrict these sequences to 30 base pairs , located between 241 and 210 base pairs upstream of the mRNA cap site .
 vimentin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 vimentin