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. 2010 Jan 4;285(11):8395–8407. doi: 10.1074/jbc.M109.038638

FIGURE 8.

FIGURE 8.

Schematic representation of GADD45β-driven C/EBPβ modulation of Col10a1 during chondrocyte terminal differentiation. GADD45β through the MTK1/MKK3/6/p38 axis may promote chondrocyte terminal differentiation via p38-dependent phosphorylation of the C/EBPβ-TAD4 to promote protein-protein interactions with CBP-p300 or TAF2B/TBP to recruit the polymerase II complex and enhance transcriptional activation of Col10a1. GADD45β-C/EBP-responsive element 1 (GCRE) is the binding site for C/EBPβ that we identified in the Col10a1 promoter (TCATGCAATA). TF, transcription factor.

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