53BP1-binding protein 1 (53BP1) engages with dimethylated lysine 20 on histone 4 (H4K20me2) through its tandem tudor domains within a homodimer configuration, crucial for the DNA damage response. UNC2170, a micromolar 53BP1 ligand, selectively interacts with this site, demonstrating at least 17-fold preference for 53BP1 over similar proteins. This interaction occurs in a pocket formed by the 53BP1s tudor domains. Moreover, UNC2170 acts as an antagonist to 53BP1 in cellular lysates, effectively inhibiting class switch recombination, a process dependent on the functional 53BP1 tudor domain, thus confirming its cellular activity.
Molecular Weight:
429.31
CAS Number:
[2173992-60-2]
Formula:
C14H21BrN2O?C4H4O4
Target:
Others|||DNA/RNA Synthesis
T84416
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