Download MendeleyStructure of an acidic phospholipase A2 from the venom of Deinagkistrodon acutus.
Gu, L., Zhang, H., Song, S., Zhou, Y., Lin, Z.(2002) Acta Crystallogr D Biol Crystallogr 58: 104-110
- PubMed: 11752784
- DOI: https://doi.org/10.1107/s0907444901018170
- Primary Citation of Related Structures:
1IJL - PubMed Abstract:
An acidic phospholipase A(2) was purified from Deinagkistrodon acutus (Agkistrodon acutus) which displays an inhibitory effect on platelet aggregation. The three-dimensional structure of the enzyme was determined by molecular replacement at 2.6 A resolution with a crystallographic R factor of 18.40% (R(free) = 22.50%) and reasonable stereochemistry. Two molecules in the asymmetric unit form a dimer and the dimer formation accompanies a significant conformational adaptation of segment 14-23, a constituent of the 'interface recognition site' (IRS). This probably reflects the inherent structural flexibility of the IRS. The possible expansion of the site for inhibiting platelet aggregation as proposed previously [Wang et al. (1996), J. Mol. Biol. 255, 669-676] is discussed.
Organizational Affiliation:
National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.
