INT265337
From wiki-pain
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Sentences Mentioned In
Key: | Protein | Mutation | Event | Anatomy | Negation | Speculation | Pain term | Disease term |
Together, these data suggest that, although it is not required for binding to Smad3, the N-terminus of Sox17 is important for repression of Smad3 transcriptional activity. | |||||||||||||||
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Thus, Sox17 interaction with these domains is consistent with the antagonistic effects of Sox17 on Smad3 DNA binding and transcriptional activity. | |||||||||||||||
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While both the MAD homology domains (MH1 and MH2) of Smad3 interacted with Sox17 at low stringency binding conditions (data not shown), Smad3 1145 did not bind to Sox17 under higher stringency conditions (Fig. 7B). | |||||||||||||||
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Since Sox17 negatively regulated Smad3 transcriptional activity in reporter assays but did not influence Smad3 nuclear import, we sought to determine if the repression was mediated by influencing Smad3 DNA binding. | |||||||||||||||
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While that amino acids 129359 of Sox17 appear to mediate binding to Smad3, the N-terminus of Sox17 is necessary to antagonize Smad3 activity. | |||||||||||||||
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In addition, Sox17 physically interacted with Smad3 and negatively regulated Smad3 DNA binding and TGF-? | |||||||||||||||
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Further, Sox17 interacted with Smad3 and blocked Smad3 DNA binding and transcriptional activity. | |||||||||||||||
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Both of the Sox17 truncations and the point mutant maintained the ability to interact with Smad3 across multiple binding stringencies (Fig. 7C). | |||||||||||||||
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Primer pairs (Invitrogen) used were smad2 (For: CGGAGATTCTAACAGAACTG; Rev: TGCTTGAGCATCGCACTGAA), smad3 (For: AGCACACAATAACTTGGACC; Rev: TAAGACACACTGGAACAGCGGATG), TGF-? | |||||||||||||||
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General Comments
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