Molecular recognition of human angiogenin by placental ribonuclease inhibitor--an X-ray crystallographic study at 2.0 A resolution.
Papageorgiou, A.C., Shapiro, R., Acharya, K.R.(1997) EMBO J 16: 5162-5177
- PubMed: 9311977 
- DOI: 10.1093/emboj/16.17.5162
- Primary Citation of Related Structures:  
1A4Y - PubMed Abstract: 
Human placental RNase inhibitor (hRI), a leucine-rich repeat protein, binds the blood vessel-inducing protein human angiogenin (Ang) with extraordinary affinity (Ki <1 fM). Here we report a 2.0 A resolution crystal structure for the hRI-Ang complex that, together with extensive mutagenesis data from earlier studies, reveals the molecular features of this tight interaction ...