Metal-Free and Ca(2+)-Bound Structures of a Multidomain EF-Hand Protein, CBP40, from the Lower Eukaryote Physarum polycephalum
Iwasaki, W., Sasaki, H., Nakamura, A., Kohama, K., Tanokura, M.(2003) Structure 11: 75-85
- PubMed: 12517342 
- DOI: 10.1016/s0969-2126(02)00932-2
- Primary Citation of Related Structures:  
1IJ5, 1IJ6 - PubMed Abstract: 
Acellular slime mold, Physarum polycephalum, has a unique wound-healing system. When cytoplasm of plasmodia is exposed to extracellular fluid, calcium binding protein 40 (CBP40) seals damaged areas, forming large aggregates Ca(2+) dependently. Part of the CBP40 is truncated at the N terminus by a proteinase in plasmodia (CBP40delta), which does not aggregate in the Ca(2+)-bound form ...