Download MendeleyStructure of PCNA from Drosophila melanogaster.
Wang, K., Shi, Z., Zhang, M., Cheng, D.(2013) Acta Crystallogr Sect F Struct Biol Cryst Commun 69: 387-392
- PubMed: 23545643
- DOI: https://doi.org/10.1107/S1744309113004971
- Primary Citation of Related Structures:
4HK1 - PubMed Abstract:
Proliferating cell nuclear antigen (PCNA) plays essential roles in DNA replication, DNA repair, cell-cycle regulation and chromatin metabolism. The PCNA from Drosophila melanogaster (DmPCNA) was purified and crystallized. The crystal of DmPCNA diffracted to 2.0 Å resolution and belonged to space group H3, with unit-cell parameters a = b = 151.16, c = 38.28 Å. The structure of DmPCNA was determined by molecular replacement. DmPCNA forms a symmetric homotrimer in a head-to-tail manner. An interdomain connector loop (IDCL) links the N- and C-terminal domains. Additionally, the N-terminal and C-terminal domains contact each other through hydrophobic associations. Compared with human PCNA, the IDCL of DmPCNA has conformational changes, which may explain their difference in function. This work provides a structural basis for further functional and evolutionary studies of PCNA.
Organizational Affiliation:
Department of Biology, Qingdao University, Qingdao, Shandong 266021, People's Republic of China.
