Structure of an interleukin-1 beta mutant with reduced bioactivity shows multiple subtle changes in conformation that affect protein-protein recognition.
Camacho, N.P., Smith, D.R., Goldman, A., Schneider, B., Green, D., Young, P.R., Berman, H.M.(1993) Biochemistry 32: 8749-8757
- PubMed: 8364024 
- DOI: 10.1021/bi00085a005
- Primary Citation of Related Structures:  
1HIB - PubMed Abstract: 
Site-specific mutagenesis was used to obtain the human interleukin-1 beta mutant protein with glycine substituted for threonine at position 9 (IL-1 beta Thr9Gly). The mutant maintains receptor binding but exhibits significantly reduced biological activity ...