The 1.85 Å structure of an antigen-free llama heavy chain variable domain reveals a fold similarity to that of the classical immunoglobulin VHs, increased surface hydrophilicity of the side of the VH corresponding to that facing the VL domain in classical immunoglobulins, and alterations in the pattern of the CDRs.
- Silvia Spinelli
- Leon Frenken
- Marietta Tegonil