view article
Figure 10
2|Fo| − |Fc| nuclear-density map around the carboxyl group of Glu35 of lysozyme at (a) pD = 4.9 and (b) pD = 7.0. Note the pronounced `finger' of nuclear density (see arrow) protruding upwards from atom E35Oɛ1 on the left (pD = 4.9) and (b) the lack of such a feature on the carboxylate group on the right (pD = 7.0), that is, the O atom has lost its proton. This suggests that residue E35 of lysozyme is in its protonated (deuterated) form under more active (acidic) conditions. [Note: in both plots, atom E35Oɛ1 is circled.]

Journal logoFOUNDATIONS
ADVANCES
ISSN: 2053-2733
Volume 64| Part 1| January 2008| Pages 12-22
https://doi.org/10.1107/S0108767307043498
Follow Acta Cryst. A
Sign up for e-alerts
E-alerts
Follow Acta Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS