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DOCK-5-对接

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DrugSci
发布2021-02-04 15:02:58
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发布2021-02-04 15:02:58
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文章被收录于专栏:FindKeyFindKey
对接

直接进行半柔性对接,刚性对接不感兴趣 使用指令:

dock6 -i dock.in

创建文件dock.in 参数详解: http://dock.compbio.ucsf.edu/DOCK_6/tutorials/ligand_sampling_dock/ligand_sampling_dock.html 格式为:

conformer_search_type                                        flex
write_fragment_libraries                                     no
user_specified_anchor                                        no
limit_max_anchors                                            no
min_anchor_size                                              40
pruning_use_clustering                                       yes
pruning_max_orients                                          100
pruning_clustering_cutoff                                    100
pruning_conformer_score_cutoff                               25.0
pruning_conformer_score_scaling_factor                       1.0
use_clash_overlap                                            no
write_growth_tree                                            no
use_internal_energy                                          yes
internal_energy_rep_exp                                      12
internal_energy_cutoff                                       100.0
ligand_atom_file                                             ../1_struct/lig_charged.mol2
limit_max_ligands                                            no
skip_molecule                                                no
read_mol_solvation                                           no
calculate_rmsd                                               no
use_database_filter                                          no
orient_ligand                                                yes
automated_matching                                           yes
receptor_site_file                                           ../2_site/selected_spheres.sph
max_orientations                                             500
critical_points                                              no
chemical_matching                                            no
use_ligand_spheres                                           no
bump_filter                                                  no
score_molecules                                              yes
contact_score_primary                                        no
contact_score_secondary                                      no
grid_score_primary                                           yes
grid_score_secondary                                         no
grid_score_rep_rad_scale                                     1
grid_score_vdw_scale                                         1
grid_score_es_scale                                          1
grid_score_grid_prefix                                       ../3_grid/grid
multigrid_score_secondary                                    no
dock3.5_score_secondary                                      no
continuous_score_secondary                                   no
footprint_similarity_score_secondary                         no
pharmacophore_score_secondary                                no
descriptor_score_secondary                                   no
gbsa_zou_score_secondary                                     no
gbsa_hawkins_score_secondary                                 no
SASA_score_secondary                                         no
amber_score_secondary                                        no
minimize_ligand                                              yes
minimize_anchor                                              yes
minimize_flexible_growth                                     yes
use_advanced_simplex_parameters                              no
simplex_max_cycles                                           1
simplex_score_converge                                       0.1
simplex_cycle_converge                                       1.0
simplex_trans_step                                           1.0
simplex_rot_step                                             0.1
simplex_tors_step                                            10.0
simplex_anchor_max_iterations                                500
simplex_grow_max_iterations                                  500
simplex_grow_tors_premin_iterations                          0
simplex_random_seed                                          0
simplex_restraint_min                                        no
atom_model                                                   all
vdw_defn_file                                                ../../../parameters/vdw_AMBER_parm99.defn
flex_defn_file                                               ../../../parameters/flex.defn
flex_drive_file                                              ../../../parameters/flex_drive.tbl
ligand_outfile_prefix                                        anchor_and_grow
write_orientations                                           no
num_scored_conformers                                        20
rank_ligands                                                 yes

输入指令,进行运算: dock6 -i dock.in -o dock.out 输出文件: dock.out为总结的参数文件 anchor_and_grow_ranked.mol2为输出文件,里面有20个排名较高的mol 使用chimera查看 Tools->Surface/Binding Analysis->ViewDock 结果,也可以作为动画展示


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