4TRK
Structure of C. elegans HIM-3
Summary for 4TRK
| Entry DOI | 10.2210/pdb4trk/pdb |
| Descriptor | C. elegans HIM-3 (2 entities in total) |
| Functional Keywords | horma domain, meiosis, chromosome axis, dna binding protein |
| Biological source | Caenorhabditis elegans |
| Total number of polymer chains | 1 |
| Total formula weight | 33166.83 |
| Authors | Rosenberg, S.C.,Corbett, K.D. (deposition date: 2014-06-17, release date: 2014-11-19, Last modification date: 2023-12-27) |
| Primary citation | Kim, Y.,Rosenberg, S.C.,Kugel, C.L.,Kostow, N.,Rog, O.,Davydov, V.,Su, T.Y.,Dernburg, A.F.,Corbett, K.D. The Chromosome Axis Controls Meiotic Events through a Hierarchical Assembly of HORMA Domain Proteins. Dev.Cell, 31:487-502, 2014 Cited by PubMed Abstract: Proteins of the HORMA domain family play central, but poorly understood, roles in chromosome organization and dynamics during meiosis. In Caenorhabditis elegans, four such proteins (HIM-3, HTP-1, HTP-2, and HTP-3) have distinct but overlapping functions. Through combined biochemical, structural, and in vivo analysis, we find that these proteins form hierarchical complexes through binding of their HORMA domains to cognate peptides within their partners' C-terminal tails, analogous to the "safety belt" binding mechanism of Mad2. These interactions are critical for recruitment of HIM-3, HTP-1, and HTP-2 to chromosome axes. HTP-3, in addition to recruiting the other HORMA domain proteins to the axis, plays an independent role in sister chromatid cohesion and double-strand break formation. Finally, we find that mammalian HORMAD1 binds a motif found both at its own C terminus and at that of HORMAD2, indicating that this mode of intermolecular association is a conserved feature of meiotic chromosome structure in eukaryotes. PubMed: 25446517DOI: 10.1016/j.devcel.2014.09.013 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (1.751 Å) |
Structure validation
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