Figure 8.
Figure 8 Grouping of subunits in the perturbed helix. Views
perpendicular to the virion axis, N-termini of the subunits
towards the top. Colour coding as in Fig. 6-. (a) Units k = 1
and k = 2 in the virion basic helix are superposed on unit k = 0
by the operation (-kTH, -kHH). Black, model RPf1^H; red, unit k
= 0 of model 3RPf1^H; green, k = 1; blue, k = 2. Heavy lines
connect C^ atoms;
lighter lines connect side-chain non-H atoms. Stereoview from
outside the virion towards the virion axis, which is shown as a
vertical line. (b) Models as (a) but viewed at 90° to (a),
tangent to the circumference of a cylinder coaxial with the
virion, in the direction of increasing cylindrical polar angle
.
(c) The assembly of subunits in model 3RPf1^H. Each subunit is
represented as a space-filling coil following the protein
backbone at 5 Å radius. Axial slab about 100 Å long,
corresponding to about 0.5% of the total length of the virion.
Colour coding as in (a): red, k = 0, 3, 6, 9, ...; green, k = 1,
4, 7, 10, ...; blue, k = 2, 5, 8, 11, ... . Three adjacent
subunits (k = 0, -6, -11) are shown in atomic detail (white
lines) within `transparent' rods. Heavy lines connect C^ atoms;
lighter lines connect side-chain non-H atoms.
The above figure is reprinted
by permission from the IUCr:
Acta Crystallogr D Biol Crystallogr
(2000,
56,
137-150)
copyright 2000.
atoms;
lighter lines connect side-chain non-H atoms. Stereoview from
outside the virion towards the virion axis, which is shown as a
vertical line. (b) Models as (a) but viewed at 90° to (a),
tangent to the circumference of a cylinder coaxial with the
virion, in the direction of increasing cylindrical polar angle
.
(c) The assembly of subunits in model 3RPf1^H. Each subunit is
represented as a space-filling coil following the protein
backbone at 5 Å radius. Axial slab about 100 Å long,
corresponding to about 0.5% of the total length of the virion.
Colour coding as in (a): red, k = 0, 3, 6, 9, ...; green, k = 1,
4, 7, 10, ...; blue, k = 2, 5, 8, 11, ... . Three adjacent
subunits (k = 0, -6, -11) are shown in atomic detail (white
lines) within `transparent' rods. Heavy lines connect C^