Research Project
Grant-in-Aid for Scientific Research (B)
Attachment of SUMO (Small ubiquitin-like modifier) family proteins is a post-translational modification that regulates the functions, structures or localizations of modified proteins, and regulates a vast arrays of cellular functions, such as transcription, DNA repair and regulation of chromatin structures. One of the target proteins, Thymine DNA glycosylase (TDG) is an DNA glycosylase that is thought to excise mismatch base from DNA containing G-U or G-T base pairs. SUMO-1 or SUMO-2/3 attachment of TDG has been proposed to promote its dissociation from DNA containing an abasic site.We have determined the crystal structure of the central region of TDG, which involves the catalytic core domain and the SUMOylation site, conjugated to SUMO-1 (SUMO-1-TDG) or SUMO-3 (SUMO-3-TDG). The structure of SUMO-1-TDG shows that the central region of TDG interacts SUMO-1 through both covalent and non-covalent contacts, which seemingly induces a structural rearrangement in a region of TDG. A model building assumes that this possible structural change may create a protrusion on the protein surface, which is positioned so as to make a steric clash with DNA bound to TDG. The structure of SUMO-3-TDG is similar to that of SUMO-1-TDG.
All 2006 2005 2004 Other
All Journal Article (49 results) (of which Peer Reviewed: 19 results)
FEBS Letter 580
Pages: 23-26
Nature 435
Pages: 979-982
FEBSLetter 580
Molecular and Cellular Biology 25
Pages: 9292-9303
Pediatric Research 58
Pages: 263-9
Biochemical and Biophysical Research Communications 334
Pages: 460-465
Journal of Biological Chemistry 280
Pages: 25127-25133
Structure 13
Pages: 521-532
J Biomolecular NMR 32
Pages: 177-177
Biochemical and Biophysical Research Communication 334
Pediatric Research, 58
Pages: 263-269
Journal of Biological Chemistry 279
Pages: 55393-55400
Journal of American Chemical Society 126
Pages: 14023-14028
Pages: 50060-50068
Acta Crystallography D Biological Crystallography 60
Pages: 2098-2099
Genes to Cells 9
Pages: 865-875
Molecular Endocrinology 18
Pages: 2451-2462
Nucleic Acid Research 15
Pages: 3198-3211
Pages: 33806-33815
Protein Engineering, Design & Selection 17
Pages: 305-314
FEBS Letters 566
Pages: 157-161
Pages: 17289-17294
Ada Crystallography D Biological Crystallography
Structure (印刷中)