4tvr

Structural highlights

Disease

UHRF2_HUMAN Associated with various cancers. DNA copy number loss is found in multiple kinds of malignancies originating from the brain, breast, stomach, kidney, hematopoietic tissue and lung.

Function

UHRF2_HUMAN E3 ubiquitin-protein ligase that is an intermolecular hub protein in the cell cycle network. Through cooperative DNA and histone binding, may contribute to a tighter epigenetic control of gene expression in differentiated cells. Ubiquitinates cyclins, CCND1 and CCNE1, in an apparently phosphorylation-independent manner and induces G1 arrest. Also ubiquitinates PCNP leading to its degradation by the proteasome. E3 SUMO-, but not ubiquitin-, protein ligase for ZNF131.^{[1] [2] [3] [4] [5] [6]}

See Also

• Ubiquitin protein ligase 3D structures

References

1. ↑ Mori T, Li Y, Hata H, Ono K, Kochi H. NIRF, a novel RING finger protein, is involved in cell-cycle regulation. Biochem Biophys Res Commun. 2002 Aug 23;296(3):530-6. PMID:12176013
2. ↑ Li Y, Mori T, Hata H, Homma Y, Kochi H. NIRF induces G1 arrest and associates with Cdk2. Biochem Biophys Res Commun. 2004 Jun 25;319(2):464-8. PMID:15178429 doi:http://dx.doi.org/10.1016/j.bbrc.2004.04.190
3. ↑ Mori T, Li Y, Hata H, Kochi H. NIRF is a ubiquitin ligase that is capable of ubiquitinating PCNP, a PEST-containing nuclear protein. FEBS Lett. 2004 Jan 16;557(1-3):209-14. PMID:14741369
4. ↑ Unoki M, Nishidate T, Nakamura Y. ICBP90, an E2F-1 target, recruits HDAC1 and binds to methyl-CpG through its SRA domain. Oncogene. 2004 Oct 7;23(46):7601-10. PMID:15361834 doi:10.1038/sj.onc.1208053
5. ↑ Mori T, Ikeda DD, Fukushima T, Takenoshita S, Kochi H. NIRF constitutes a nodal point in the cell cycle network and is a candidate tumor suppressor. Cell Cycle. 2011 Oct 1;10(19):3284-99. doi: 10.4161/cc.10.19.17176. Epub 2011 Oct, 1. PMID:21952639 doi:http://dx.doi.org/10.4161/cc.10.19.17176
6. ↑ Oh Y, Chung KC. UHRF2, a ubiquitin E3 ligase, acts as a small ubiquitin-like modifier E3 ligase for zinc finger protein 131. J Biol Chem. 2013 Mar 29;288(13):9102-11. doi: 10.1074/jbc.M112.438234. Epub 2013, Feb 12. PMID:23404503 doi:http://dx.doi.org/10.1074/jbc.M112.438234