5D7N
Crystal structure of human Sirt3 at an improved resolution
Summary for 5D7N
| Entry DOI | 10.2210/pdb5d7n/pdb |
| Descriptor | NAD-dependent protein deacetylase sirtuin-3, mitochondrial, ZINC ION, DI(HYDROXYETHYL)ETHER, ... (9 entities in total) |
| Functional Keywords | hydrolase, sirtuin 3, deacylase |
| Biological source | Homo sapiens (Human) |
| Cellular location | Mitochondrion matrix : Q9NTG7 |
| Total number of polymer chains | 6 |
| Total formula weight | 189336.54 |
| Authors | Rumpf, T.,Gerhardt, S.,Einsle, O.,Jung, M. (deposition date: 2015-08-14, release date: 2015-12-02, Last modification date: 2024-01-10) |
| Primary citation | Rumpf, T.,Gerhardt, S.,Einsle, O.,Jung, M. Seeding for sirtuins: microseed matrix seeding to obtain crystals of human Sirt3 and Sirt2 suitable for soaking. Acta Crystallogr.,Sect.F, 71:1498-1510, 2015 Cited by PubMed Abstract: Sirtuins constitute a family of NAD(+)-dependent enzymes that catalyse the cleavage of various acyl groups from the ℇ-amino group of lysines. They regulate a series of cellular processes and their misregulation has been implicated in various diseases, making sirtuins attractive drug targets. To date, only a few sirtuin modulators have been reported that are suitable for cellular research and their development has been hampered by a lack of structural information. In this work, microseed matrix seeding (MMS) was used to obtain crystals of human Sirt3 in its apo form and of human Sirt2 in complex with ADP ribose (ADPR). Crystal formation using MMS was predictable, less error-prone and yielded a higher number of crystals per drop than using conventional crystallization screening methods. The crystals were used to solve the crystal structures of apo Sirt3 and of Sirt2 in complex with ADPR at an improved resolution, as well as the crystal structures of Sirt2 in complex with ADPR and the indoles EX527 and CHIC35. These Sirt2-ADPR-indole complexes unexpectedly contain two indole molecules and provide novel insights into selective Sirt2 inhibition. The MMS approach for Sirt2 and Sirt3 may be used as the basis for structure-based optimization of Sirt2/3 inhibitors in the future. PubMed: 26625292DOI: 10.1107/S2053230X15019986 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (1.83 Å) |
Structure validation
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