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Figure 1.
Figure 1. Cartoon of PGA showing the secondary structural
elements, a-helices and b-sheets. (a) Mature enzyme [McVey
1999]. (b) Precursor: the A domain is shown in green, the B
domain in blue and the linker peptide is in red. The N-terminal
nucleophilic serine residue is also drawn in yellow as a ball
and stick model. Figure 1, Figure 2, Figure 5 and Figure 7 were
created with the program BOBSCRIPT [Esnouf 1997].
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