Comparison between β2-m cavity accommodation of residue 95 in Trp95Leu mutant (A) and wild-type (PDB code 1LDS) (B). Residues Ser11, Asn21, Pro72 and Tyr78 are shown in red as sticks and space-fill dots. Residue 95 is shown in cyan.
Raimondi et al. BMC Evolutionary Biology 2011 11:159 doi:10.1186/1471-2148-11-159