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# 07_ncs.py
# Copyright 2008 by The University of York
# Author: Bernhard Lohkamp
# Copyright 2007, 2008 by The University of Oxford
# Author: Paul Emsley
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or (at
# your option) any later version.
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA
import unittest
import os
import coot
import coot_utils
import coot_ncs # coot.ncs one day
import coot_testing_utils
def insulin_res():
return os.path.join(coot_testing_utils.unittest_data_dir, "insulin.res")
def imol_insulin():
return coot.read_pdb(insulin_res())
class TestNCSFunctions(unittest.TestCase):
def test01_1(self):
"""NCS maps test"""
imol_rnase = coot.read_pdb(coot_testing_utils.rnase_pdb())
imol_rnase_map = coot.make_and_draw_map(coot_testing_utils.rnase_mtz(), "FWT","PHWT","",0,0)
self.assertTrue(coot_utils.valid_model_molecule_qm(imol_rnase), "imol_rnase not valid")
self.assertTrue(coot_utils.valid_map_molecule_qm(imol_rnase_map), "imol_rnase_map not valid")
n_mols = coot.graphics_n_molecules()
# try to make it trip up by doing it twice:
imol_map_2 = coot.make_and_draw_map(coot_testing_utils.rnase_mtz(), "FWT", "PHWT", "", 0 ,0)
coot.make_dynamically_transformed_ncs_maps(imol_rnase, imol_rnase_map, 0)
coot.make_dynamically_transformed_ncs_maps(imol_rnase, imol_map_2, 0)
# 2*2 + 1 new maps should have been made
n_new = coot.graphics_n_molecules()
self.assertEqual(n_new, (n_mols + 5), "no match in number of molecules %s %s" %(n_mols, n_new))
def test02_0(self):
"""NCS chains info"""
# should return False
ncs_chain_info = coot.ncs_chain_ids_py(-1)
self.assertFalse(ncs_chain_info, " Fail: ncs-chains returns %s, should be False" %ncs_chain_info)
# a normal case
imol_rnase = coot.read_pdb(coot_testing_utils.rnase_pdb())
coot.make_ncs_ghosts_maybe(imol_rnase)
ncs_chain_info = coot.ncs_chain_ids_py(imol_rnase)
self.assertTrue(ncs_chain_info, " Fail: ncs-chain-ids returns False")
self.assertTrue(len(ncs_chain_info) > 0, " Fail: ncs-chains returns %s" %ncs_chain_info)
first_ghost = ncs_chain_info[0]
self.assertTrue(len(first_ghost) > 1, " Fail: first-ghost %s" %first_ghost)
print(" NCS info: ", ncs_chain_info)
def test03_0(self):
"""NCS deviation info"""
# should return False
ncs_chain_info = coot.ncs_chain_differences_py(-1, "XX")
self.assertFalse(ncs_chain_info, " Fail: ncs-chains returns %s, should be False" %ncs_chain_info)
# should return False for insulin
#global imol_insulin
ncs_chain_info = coot.ncs_chain_differences_py(imol_insulin(), "A")
self.assertFalse(ncs_chain_info, " Fail: ncs-chains for insulin returns %s, should be False" %ncs_chain_info)
# a normal case
imol_rnase = coot.read_pdb(coot_testing_utils.rnase_pdb())
coot.make_ncs_ghosts_maybe(imol_rnase)
ncs_chain_info = coot.ncs_chain_differences_py(imol_rnase, "A")
self.assertTrue(ncs_chain_info, " Fail: ncs-chain-differences returns False")
self.assertEqual(len(ncs_chain_info), 3,
""" Fail on length: length ncs-chain-differences should be 3 is %s\n
ncs-chain-differences returns %s""" %(len(ncs_chain_info), ncs_chain_info))
# Phil spotted this bug (it wouldn't refine across the residue 3->4
# peptide bond - because out out of order residues
#
def test04_0(self):
"""NCS Residue Range copy"""
# ls is a list of numbers. Is it in ascending order? Return True or False
def ascending_order_qm(ls):
asc = sorted(ls)
if (ls == asc):
return True
else:
return False
# prepare the input
imol = coot.read_pdb(coot_testing_utils.rnase_pdb())
self.assertTrue(coot_utils.valid_model_molecule_qm(imol), "fail to read %s" %coot_testing_utils.rnase_pdb())
for r in range(1, 4):
coot.delete_residue(imol, "B", r, "")
# make ghosts
coot.make_ncs_ghosts_maybe(imol)
# evaluate the function to be tested
coot.copy_residue_range_from_ncs_master_to_others(imol, "A", 1, 6)
# check the result
chain_id = "B"
n_residues = coot.chain_n_residues(chain_id, imol)
seqnum_order = [coot.seqnum_from_serial_number(imol, chain_id, serial_number) for serial_number in range(n_residues)]
# return a boolean value
self.assertTrue(ascending_order_qm(seqnum_order), "fail with seqnum_order %s not ascending" %seqnum_order)
# Now we can test a mutation.
#
# check that the mutate function returns success.
#
# check that the new residue type is indeed a TRP
#
# make the NCS copy
#
# check that the NCS target residue has had it's type
# updated to TRP.
#
mutate_success = coot.mutate(imol, "A", 2, "", "TRP")
self.assertTrue(mutate_success == 1, "Mutate fails.")
rname = coot.residue_name(imol, "A", 2, "")
self.assertTrue(rname == "TRP", "Mutate fails - master not a TRP. %s" %rname)
coot.copy_residue_range_from_ncs_master_to_others(imol, "A", 1, 3)
rname = coot.residue_name(imol, "B", 2, "")
self.assertTrue(rname == "TRP", "Mutate fails - peer not a TRP (%s)" %rname)
# Perhaps combine this with previous test, its tests the same function.
#
def test05_0(self):
"""NCS Residue Range edit to all chains"""
imol = coot_testing_utils.unittest_pdb("pdb1t6q.ent")
self.assertTrue(coot_utils.valid_model_molecule_qm(imol))
coot.mutate(imol, "A", 50, "", "ASP")
coot_ncs.skip_to_next_ncs_chain("forward") # generate the ghosts
coot.copy_residue_range_from_ncs_master_to_others(imol, "A", 50, 50)
# did it apply?
result = []
for chain_id_peer in ["B", "C"]:
resname = coot.residue_name(imol, chain_id_peer, 50, "")
if (resname == "ASP"):
result.append(True)
else:
result.append(False)
print("result:", result)
self.assertTrue(all(result))
# This excercises a failure reported by Engin Ozkan 20081209. Oh
# D'oh, I'd hard-coded "A" as the master chain id into
# manual-ncs-ghosts, I should have used the beginning of the list of
# chain-ids instead.
#
def test06_0(self):
"""Manual NCS ghosts generates correct NCS chain ids"""
imol = coot_testing_utils.unittest_pdb("pdb1hvv.ent")
coot.set_draw_ncs_ghosts(imol, 1)
coot.ncs_control_change_ncs_master_to_chain_id(imol, "B")
coot.make_ncs_ghosts_maybe(imol)
ncs_ghost_chains_1 = coot_utils.ncs_chain_ids(imol)
coot_ncs.manual_ncs_ghosts(imol, 220, 230, ["B", "A", "C", "D"])
ncs_ghost_chains_2 = coot_utils.ncs_chain_ids(imol)
print(" NCS ghost chain IDs pre: ", ncs_ghost_chains_1)
print(" NCS ghost chain IDs post: ", ncs_ghost_chains_2)
self.assertEqual(ncs_ghost_chains_1, [["B", "A", "C", "D"]])
self.assertEqual(ncs_ghost_chains_2, [["B", "A", "C", "D"]])
def test07_0(self):
"""NCS maps overwrite existing maps"""
# first close all the maps that have "NCS found" in the name:
for imol in coot_utils.molecule_number_list():
if ("NCS found" in coot.molecule_name(imol)):
coot.close_molecule(imol)
imol = coot_testing_utils.unittest_pdb("pdb1hvv.ent")
imol_map = coot.make_and_draw_map(os.path.join(coot_testing_utils.unittest_data_dir, "1hvv_sigmaa.mtz"),
"2FOFCWT", "PH2FOFCWT", "", 0, 0)
coot.make_dynamically_transformed_ncs_maps(imol, imol_map, 0)
coot.make_dynamically_transformed_ncs_maps(imol, imol_map, 0)
coot.make_dynamically_transformed_ncs_maps(imol, imol_map, 1)
result_list = []
molecule_names = list(map(coot.molecule_name, coot_utils.molecule_number_list()))
print("BL DEBUG:: molecule_names", molecule_names)
for chain_id in ["B", "C", "D"]:
test_name = "Map " + \
str(imol_map) + " " + \
"NCS found from matching Chain " + \
chain_id + \
" onto Chain A"
n_matchers = molecule_names.count(test_name)
# print("DEBUG:: n_matchers", n_matchers)
self.assertTrue(n_matchers >= 2, " Failed to find matching NCS chain %s" %chain_id)
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