Crystal structure of bovine annexin VI in a calcium-bound state.
Avila-Sakar, A.J., Creutz, C.E., Kretsinger, R.H.(1998) Biochim Biophys Acta 1387: 103-116
- PubMed: 9748523 
- DOI: https://doi.org/10.1016/s0167-4838(98)00111-3
- Primary Citation of Related Structures:  
1AVC - PubMed Abstract: 
The crystal structure of a calcium-bound form of bovine annexin VI has been determined with X-ray diffraction data to 2.9 A by molecular replacement. Six Ca2+ ions were found, five in AB loops, one in a DE loop. Two loops (II-AB, which binds calcium, and V-AB, which does not) have conformations that differ significantly from those in calcium-free, human recombinant annexin VI. There are only small differences between the calci- and the apo-annexin VI in the rest of the molecule. Calcium by itself does not promote a major conformational change.
Organizational Affiliation: 
Department of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA. aa4n@virginia.edu