Пример #1
0
        static void RunJobAngleCXCX(object start)
        {
            JobStartParamsCXCX startParams = (JobStartParamsCXCX)start;
            int count = 0;

            // Get a bunch of fusions with the h**o-oligomer axes positioned such that after transformation by the symmetry definition's first coordinate system transformation,
            // the axes overlap the first and second repeating unit axes
            SymmetryBuilder  builder           = startParams.Symmetry;
            CoordinateSystem coordinateSystem1 = builder.GetPrincipalCoordinateSystem(startParams.UnitId1);
            CoordinateSystem coordinateSystem2 = builder.GetPrincipalCoordinateSystem(startParams.UnitId2);
            Line             principalAxis1    = Line.CreateFromPointAndDirection(coordinateSystem1.Translation, coordinateSystem1.UnitX); // The rosetta symdefs axes are along X of each transformed coordinate system, but something not requiring foreknowledge would be nice.
            Line             principalAxis2    = Line.CreateFromPointAndDirection(coordinateSystem2.Translation, coordinateSystem2.UnitX); // The rosetta symdefs axes are along X of each transformed coordinate system, but something not requiring foreknowledge would be nice.
            Quaternion       premultiply       = Quaternion.Inverse(coordinateSystem1.Transform.Rotation);

            principalAxis1.Direction = Vector3.Transform(principalAxis1.Direction, premultiply);
            principalAxis2.Direction = Vector3.Transform(principalAxis2.Direction, premultiply);
            principalAxis1.Point     = Vector3.Transform(principalAxis1.Point, premultiply);
            principalAxis2.Point     = Vector3.Transform(principalAxis2.Point, premultiply);
            TwoAxisRealignment      axisAlignmentUtility = TwoAxisRealignment.Create((float)startParams.AngleDegrees, principalAxis1, principalAxis2);
            List <FusionDesignInfo> fusions = Fuse.SymmetricFusionGenerator.CnCn(startParams.Cx1, startParams.Cx2, startParams.ChainCount1, startParams.ChainCount2, startParams.AngleDegrees, axisAlignmentUtility);

            int writtenOutCount = 0;

            foreach (FusionDesignInfo fusion in fusions)
            {
                // Create the pdb chains as per the symmetry builder and find whether any of these copies clashes
                bool         fullSystemClashes = false;
                List <Chain> outputChains      = new List <Chain>();

                if (builder is PxSymmetryBuilder)
                {
                    TwoAxisFusionDesignInfo twoAxisFusion = (TwoAxisFusionDesignInfo)fusion;
                    PxSymmetryBuilder       pxBuilder     = (PxSymmetryBuilder)builder;
                    pxBuilder.Scale = Line.GetDistance(twoAxisFusion.Axis1, twoAxisFusion.Axis2.Point) / Line.GetDistance(principalAxis1, principalAxis2.Point);
                    //pxBuilder.Scale = 2 * Line.GetDistance(twoAxisFusion.Axis2, twoAxisFusion.Axis1.Point);
                }

                CoordinateSystem[] coordinateSystems = builder.GetCoordinateSystems(startParams.UnitId1);
                for (int i = 0; i < coordinateSystems.Length; i++)
                {
                    outputChains.Add(new Chain(fusion.Peptide));
                    outputChains[i].Transform(coordinateSystems[i].Transform);


                    if (i > 0 && Clash.AnyContact(outputChains[0], outputChains[i], Clash.ContactType.MainchainMainchainClash))
                    {
                        fullSystemClashes = true;
                        break;
                    }
                }

#if DEBUG
                IChain[] originalChains = fusion.PdbOutputChains;
#endif
                fusion.PdbOutputChains = outputChains.ToArray();

                if (fullSystemClashes || writtenOutCount >= startParams.TopX)
                {
                    continue;
                }

                lock (lockFileIO)
                {
                    // Output files
                    string identifier = String.Format("CXCX_{0}_{1}_{2}_{3}", startParams.OutputPrefix, startParams.PdbCodeBundle1, startParams.PdbCodeBundle2, count++);

                    // -resfile
                    Resfile resfile = new Resfile();
                    fusion.DesignablePositions.ToList().ForEach(item => resfile.SetNotAminoAcids(0, item, "MW"));  // Set the designable residues, disallowing Met and Trp entirely
                    fusion.ImmutablePositions.ToList().ForEach(item => resfile.SetNativeRotamer(0, item));         // Set the immutable positions, overriding any designable ones if they conflict
                    File.AppendAllLines(identifier + ".resfile", resfile.GetFileText());

                    // -scores
                    File.AppendAllText("scores_CXCX.txt", String.Format("{0} {1:F2}\n", identifier, fusion.Score));

                    // -forward folding fixed-backbone ranges
                    File.AppendAllText(identifier + ".fixed_ranges", String.Format("fixedbb_range1={0}-{1} fixedbb_range2={2}-{3}", 1, fusion.IdentityRanges[0].End + 1, fusion.IdentityRanges[1].Start + 1, fusion.Peptide.Count));

                    // -pdbs
                    PdbQuick.Save(identifier + "_monomer.pdb", new IChain[] { fusion.Peptide });
                    PdbQuick.Save(identifier + "_multichain.pdb", fusion.PdbOutputChains);
#if DEBUG
                    PdbQuick.Save(identifier + "_2axis.pdb", originalChains);
#endif
                }
            }
            Console.WriteLine("Completed triplet [Bundle {0}]:[Bundle {1}], {2:F2} degrees, {3:F2}% ({4}/{5})", startParams.PdbCodeBundle1, startParams.PdbCodeBundle2, startParams.AngleDegrees, startParams.Counter.PercentComplete, startParams.Counter.Complete, startParams.Counter.Total);

            startParams.Counter.IncrementComplete();
            _threadCountSemaphore.Release();
        }
Пример #2
0
        static void StartJobsAngleCXCX(CxcxFusionFlags options)
        {
            SymmetryBuilder      symmetry       = SymmetryBuilderFactory.CreateFromSymmetryName(options.Architecture);
            List <string>        filesOligomer1 = GetPdbFiles(Directory.GetCurrentDirectory(), options.OligomerRegex1).ToList();
            List <string>        filesOligomer2 = GetPdbFiles(Directory.GetCurrentDirectory(), options.OligomerRegex2).ToList();
            ThreadSafeJobCounter sharedCounter  = new ThreadSafeJobCounter();

            sharedCounter.Total = filesOligomer1.Count * filesOligomer2.Count;

            Console.WriteLine("\nUsing the following files for h**o-oligomer 1:");
            filesOligomer1.ForEach(file => Console.WriteLine(file));

            Console.WriteLine("\nUsing the following files for h**o-oligomer 2:");
            filesOligomer2.ForEach(file => Console.WriteLine(file));

            float angleDegrees = (float)VectorMath.GetAngleDegrees(symmetry.GetPrincipalCoordinateSystem(options.UnitId1).UnitX, Vector3.Zero, symmetry.GetPrincipalCoordinateSystem(options.UnitId2).UnitX);

            Console.WriteLine("Angle for {0}:{1}:{2} calculated to: {3:F4}", options.Architecture, options.UnitId1, options.UnitId2, angleDegrees);

            // Parse oligomer 1 and offset it to positive Z
            foreach (string fileOligomer1 in filesOligomer1)
            {
                string pdbCode1 = PdbQuick.CodeFromFilePath(fileOligomer1);
                IChain peptide1 = PdbQuick.ChainFromFileOrCode(fileOligomer1);
                peptide1.Translate(new Vector3(0, 0, 20 - Rmsd.GetBackboneCentroid(peptide1).Z));

                // Parse oligomer 2 and offset it to positive Z
                foreach (string fileOligomer2 in filesOligomer2)
                {
                    string pdbCode2 = PdbQuick.CodeFromFilePath(fileOligomer2);
                    IChain peptide2 = PdbQuick.ChainFromFileOrCode(fileOligomer2);
                    peptide2.Translate(new Vector3(0, 0, 20 - Rmsd.GetBackboneCentroid(peptide2).Z));

                    if (peptide1 == null || peptide2 == null)
                    {
                        Console.WriteLine("Pdb parsing failed for one of [{0}, {1}]", fileOligomer1, fileOligomer2);
                        continue;
                    }

                    JobStartParamsCXCX startParams = new JobStartParamsCXCX();
                    // things taken directly from user options
                    startParams.OutputPrefix = options.Architecture + "-" + options.UnitId1 + "-" + options.UnitId2;
                    startParams.UnitId1      = options.UnitId1;
                    startParams.UnitId2      = options.UnitId2;
                    startParams.ChainCount1  = options.Oligomerization1;
                    startParams.ChainCount2  = options.Oligomerization2;
                    startParams.TopX         = options.TopX;
                    // everything else:
                    startParams.Symmetry       = SymmetryBuilderFactory.CreateFromSymmetryName(options.Architecture);
                    startParams.PdbCodeBundle1 = pdbCode1;
                    startParams.PdbCodeBundle2 = pdbCode2;
                    startParams.Cx1            = peptide1;
                    startParams.Cx2            = peptide2;
                    startParams.AngleDegrees   = angleDegrees;
                    startParams.Counter        = sharedCounter; // Shared counter across queued jobs
                    Debug.Assert(startParams.Validate(), "JobStartParamsCXRCX validation failure");

                    _threadCountSemaphore.WaitOne();
                    sharedCounter.IncrementQueued();

                    Thread thread = new Thread(new ParameterizedThreadStart(RunJobAngleCXCX));
                    thread.Start(startParams);
                    Console.WriteLine("Queuing triplet [Bundle {0}]:[Bundle {1}], {2:F2} degrees, {3:F2} % ({4}/{5})", pdbCode1, pdbCode2, angleDegrees, startParams.Counter.PercentQueued, startParams.Counter.Queued, startParams.Counter.Total);
                }
            }
        }