Sentence of the Week #1

[From Michelle Yeoman:]

As mentioned in my previous post, each week this series will feature a new sentence that needs editing. Below is a sentence with 1 definite error: 

We studied how a transcription factor affect the inflammation response.

Please correct the error, and submit the corrected sentence and any remarks as a comment on this post. I plan to post and discuss the solution next week.

Do you have a sentence that you would like us to consider using as the Sentence of the Week? Please e-mail submissions to Michelle at msyeoman@gmail.com. Submissions should be your own work—don’t nominate a colleague’s writing :).