Download MendeleyThe refined structure of the complex between adenylate kinase from beef heart mitochondrial matrix and its substrate AMP at 1.85 A resolution.
Diederichs, K., Schulz, G.E.(1991) J Mol Biol 217: 541-549
- PubMed: 1994037
- DOI: https://doi.org/10.1016/0022-2836(91)90756-v
- Primary Citation of Related Structures:
2AK3 - PubMed Abstract:
The crystal structure of the complex between adenylate kinase from bovine mitochondrial matrix and its substrate AMP has been refined at 1.85 A resolution (1 A = 0.1 nm). Based on 42,519 independent reflections of better than 10 A resolution, a final R-factor of 18.9% was obtained with a model obeying standard geometry within 0.016 A in bond lengths and 3.2 degrees in bond angles. There are two enzyme: substrate complexes in the asymmetric unit, each consisting of 226 amino acid residues, one AMP and one sulfate ion. A superposition of the two full-length polypeptides revealed deviations that can be described as small relative movements of three domains. Best superpositions of individual domains yielded a residual overall root-mean-square deviation of 0.3 A for the backbone atoms and 0.5 A for the sidechains. The final model contains 381 solvent molecules in the asymmetric unit, 2 x 72 = 144 of which occupy corresponding positions in both complexes.
Organizational Affiliation:
Institut für Organische Chemie und Biochemie Freiburg, F.R.G.
