CYANA Macro: seqplot

Parameters

file=filename.ps

(default: seqplot.ps)

Description

Analyses the upper limit distance restraints and draws a sequence plot in Postscript format. The first three lines below the amino acid sequence represent torsion angle restraints for the backbone torsion angles f and y, and for the side-chain torsion angle c1. For f and y a triangle pointing upwards indicates a restraint that allows the torsion angle to take the values observed in an ideal a-helix (f = -57, y = -47) or 310-helix (f = -60, y = -30); a triangle pointing downwards indicates compatibility with an ideal parallel or antiparallel b-strand (f = -119, y = 113 or f = -139, y = 135, respectively; Schultz & Schirmer, 1979); a restraint represented by a star encloses conformations of both a and b secondary structure types; and a filled circle marks a restraint that excludes the torsion angle values of these regular secondary structure elements. Torsion angle restraints for c1 are depicted by filled squares of three different decreasing sizes, depending on whether they allow for one, two, or all three of the staggered rotamer positions c1 = -60, 60, 180. Torsion angle restraints for c1 that excl This command should be executed before distance modify because many of the intra-residual and short-range distance restraints will be removed by distance modify because the do not effectively restrict the conformation.