9wbv
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Cryo-EM structure of the human UBR2 N-domain in complex with tryptophan
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Structural highlights
FunctionUBR2_HUMAN E3 ubiquitin-protein ligase which is a component of the N-end rule pathway. Recognizes and binds to proteins bearing specific N-terminal residues that are destabilizing according to the N-end rule, leading to their ubiquitination and subsequent degradation. Plays a critical role in chromatin inactivation and chromosome-wide transcriptional silencing during meiosis via ubiquitination of histone H2A. Binds leucine and is a negative regulator of the leucine-mTOR signaling pathway, thereby controlling cell growth.[1] [2] [3] References
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This page was last modified 05:07, 19 August 2026.