7EMK
Dendrorhynchus zhejiangensis ferritin
Summary for 7EMK
| Entry DOI | 10.2210/pdb7emk/pdb |
| Descriptor | Dendrorhynchus zhejiangensis ferritin, FE (III) ION, SODIUM ION, ... (6 entities in total) |
| Functional Keywords | dendrorhynchus zhejiangensis, ferritin, structural protein |
| Biological source | Dendrorhynchus sinensis |
| Total number of polymer chains | 1 |
| Total formula weight | 21210.21 |
| Authors | Huan, H.S.,Ming, T.H.,Su, X.R. (deposition date: 2021-04-14, release date: 2021-05-19, Last modification date: 2024-05-29) |
| Primary citation | Huan, H.S.,Jiang, Q.Q.,Wu, Y.,Qiu, X.T.,Lu, C.Y.,Su, C.,Zhou, J.,Li, Y.,Ming, T.H.,Su, X.R. Structure determination of ferritin from Dendrorhynchus zhejiangensis Biochemical and Biophysical Research Communications, 531:195-202, 2020 Cited by PubMed Abstract: Ferritin is an important hub of iron metabolism because it stores iron during times of iron overload and releases iron during iron deficiency. Here, we present the first crystal structure of ferritin from the marine invertebrate Dendrorhynchus zhejiangensis with a 2.3 Å resolution. D. zhejiangensis ferritin (DzFer) exhibits a common cage-shaped hollow sphere with 24 subunits containing the ferroxidase centers and 3-fold and 4-fold channels. The structure of DzFer shows highly conserved catalytic residues in the ferroxidase center. The metal wire formed by ferrous ions in the 3-fold channel reveals the path that iron ions use to enter and translocate into the ferroxidase site to be oxidized and finally arrive at the nucleation site. However, the electrostatic environment of the channels and pores exhibits significant and extensive variability, suggesting that ferritins execute diverse functions in different environments. PubMed: 32792196DOI: 10.1016/j.bbrc.2020.07.069 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (2.3 Å) |
Structure validation
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