Figure 4. Structure of the β Subunit
organization of the β subunit is shown at the top, a ribbon
diagram of the FAS particle without the α subunits on the left,
and an individual β subunit on the right.
(B, C, E, and F)
Ribbon diagrams of individual domains. Red sticks show side
chains of active-site residues.
(B) AT (green), AT helical
(C) MPT (beige), MPT helical flap (blue). The
orientation is the same as that of AT.
(D) Composition of
the AT active center (pale green). Residues involved in
catalysis are shown in red. Malonate (yellow) is modeled into
the putative active sites as a reference (from PDB ID code
(E) ER (blue) with the FMN molecule (green) in the
(F) DHn (light blue) and DHc (cyan) form a
pseudodimer (DH domain).
The above figure is reprinted
by permission from Cell Press: