Fig. 4

Structural effect analysis of R830K by Swiss-PDBViewer (a represents R830 where R830 forms two H-bonds (2.99 Å, 3.08 Å) which are indicated by green discontinuous line; b represents 830 K where K830 clashes with C856 (1.43 Å, 1.90 Å, 2.03 Å) which are indicated by pink discontinuous line along with two H-bonds (green line))