Download MendeleyCrystal structure of Drosophila angiotensin I-converting enzyme bound to captopril and lisinopril
Kim, H.M., Shin, D.R., Yoo, O.J., Lee, H., Lee, J.-O.(2003) FEBS Lett 538: 65-70
- PubMed: 12633854
- DOI: https://doi.org/10.1016/s0014-5793(03)00128-5
- Primary Citation of Related Structures:
1J36, 1J37, 1J38 - PubMed Abstract:
Angiotensin I-converting enzymes (ACEs) are zinc metallopeptidases that cleave carboxy-terminal dipeptides from short peptide hormones. We have determined the crystal structures of AnCE, a Drosophila homolog of ACE, with and without bound inhibitors to 2.4 A resolution. AnCE contains a large internal channel encompassing the entire protein molecule. This substrate-binding channel is composed of two chambers, reminiscent of a peanut shell. The inhibitor and zinc-binding sites are located in the narrow bottleneck connecting the two chambers. The substrate and inhibitor specificity of AnCE appears to be determined by extensive hydrogen-bonding networks and ionic interactions in the active site channel. The catalytically important zinc ion is coordinated by the conserved Glu395 and histidine residues from a HExxH motif.
Organizational Affiliation:
Department of Biological Science, Korea Advanced Institute of Science and Technology, 373-1 Kusong-dong, Yusong-gu, Daejeon, South Korea.
