The SUMO pathway: emerging mechanisms that shape specificity, conjugation and recognition.

The SUMO pathway: emerging mechanisms that shape specificity, conjugation and recognition.
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DOI:
10.1038/nrm3011
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发表时间:
2010-12
期刊:
Nature reviews. Molecular cell biology
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小泛素相关修饰因子(SUMO)家族的蛋白质与蛋白质结合,调节核转运、转录、染色体分离和DNA修复等细胞过程。最近,人们对SUMO修饰途径的调控机制有了许多深入的了解。虽然SUMO偶联酶可以区分SUMO靶标,但许多底物具有促进其修饰的特性。其他翻译后修饰也调节SUMO偶联,表明SUMO信号与其他信号转导途径相结合。更好地理解SUMO调控机制将导致改进的方法来分析不同细胞途径中SUMO和底物结合的功能。
Proteins of the small ubiquitin-related modifier (SUMO) family are conjugated to proteins to regulate such cellular processes as nuclear transport, transcription, chromosome segregation and DNA repair. Recently, numerous insights into regulatory mechanisms of the SUMO modification pathway have emerged. Although SUMO-conjugating enzymes can discriminate between SUMO targets, many substrates possess characteristics that facilitate their modification. Other post-translational modifications also regulate SUMO conjugation, suggesting that SUMO signaling is integrated with other signal transduction pathways. A better understanding of SUMO regulatory mechanisms will lead to improved approaches for analyzing the function of SUMO and substrate conjugation in distinct cellular pathways.
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