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Commit 409509ee authored by Nicolas MAILLET's avatar Nicolas MAILLET
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Add option for pKa values (-p option) and correct ordre for enzymes

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CHANGELOG.rst
View file @ 409509ee
=========
CHANGELOG
=========
- 1.0.7
Adding choice for pKa values (option -p)
Fixing alphabetic order for enzymes
- 1.0.6
No default output file, only stdout
......
docs/conf.py
View file @ 409509ee
......@@ -20,13 +20,13 @@ sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__),
# -- Project information -----------------------------------------------------
project = 'RapidPeptidesGenerator'
copyright = '2018, Nicolas Maillet'
copyright = '2019, Nicolas Maillet'
author = 'Nicolas Maillet'
# The short X.Y version
version = ''
# The full version, including alpha/beta/rc tags
release = '1.0.6'
release = '1.0.7'
# -- General configuration ---------------------------------------------------
......
docs/enzymes.rst
View file @ 409509ee
......@@ -36,8 +36,8 @@ Available enzymes
28: :ref:`lysc` 29: :ref:`lysn` 30: :ref:`neut`
31: :ref:`ntcb` 32: :ref:`pap` 33: :ref:`peps13`
34: :ref:`peps2` 35: :ref:`prol` 36: :ref:`protk`
37: :ref:`staphI` 38: :ref:`tev` 39: :ref:`therm`
40: :ref:`throm` 41: :ref:`thromsg` 42: :ref:`tryps`
37: :ref:`staphI` 38: :ref:`therm` 39: :ref:`throm`
40: :ref:`thromsg` 41: :ref:`tev` 42: :ref:`tryps`
================== ================== ==================
.. _arg-c:
......@@ -747,23 +747,6 @@ More information: https://web.expasy.org/peptide_cutter/peptidecutter_enzymes.ht
.. _tev:
Tobacco etch virus protease
...........................
Tobacco etch virus protease (TEV) preferentially cleaves after Q (`P1`) when followed by G or S in `P1'` and preceded by Y in `P3` and E in `P6`.
**RPG definition:**
cleaving rule:
* ``(E)()()(Y)()(Q,)(G or S)``
More information: https://web.expasy.org/peptide_cutter/peptidecutter_enzymes.html#TEV
.. _therm:
Thermolysin
......@@ -836,6 +819,23 @@ More information: see thrombin cleavage kits of
.. _tev:
Tobacco etch virus protease
...........................
Tobacco etch virus protease (TEV) preferentially cleaves after Q (`P1`) when followed by G or S in `P1'` and preceded by Y in `P3` and E in `P6`.
**RPG definition:**
cleaving rule:
* ``(E)()()(Y)()(Q,)(G or S)``
More information: https://web.expasy.org/peptide_cutter/peptidecutter_enzymes.html#TEV
.. _tryps:
Trypsin
......
rpg/RapidPeptidesGenerator.py
View file @ 409509ee
......@@ -29,9 +29,9 @@
necessary functions
"""
__version_info__ = ('1', '0', '6')
__version_info__ = ('1', '0', '7')
__version__ = '.'.join(__version_info__)
__revision_date__ = "2018-11-19"
__revision_date__ = "2019-01-21"
__author__ = "Nicolas Maillet"
import argparse
......@@ -275,6 +275,9 @@ def main():
"error(s) (--quiet enable, overwrite -v). If output "
"filename already exists, output file will be "
"overwritten.")
parser.add_argument("-p", "--pka", metavar="", choices=['ipc', 'stryer'],
default="ipc", help="Define pKa values. Either 'ipc' "
"or 'stryer (default: ipc)")
group_output = parser.add_mutually_exclusive_group()
group_output.add_argument("-o", "--outputfile", type=str, metavar="",
default="", help="Optional result file "
......@@ -303,6 +306,11 @@ def main():
mode = "concurrent"
args.miscleavage = [] # No miscleavage on concurrent, infinite time
# --pka option
aa_pka = core.AA_PKA_IPC
if args.pka == "stryer":
aa_pka = core.AA_PKA_S
# --list option
if args.list:
list_enzyme()
......@@ -371,7 +379,7 @@ def main():
# Make the actual digestion of input data
results_digestion = digest.digest_from_input(args.inputdata,
enzymes_to_use, mode)
enzymes_to_use, mode, aa_pka)
# Output results
core.output_results(output_file, results_digestion, args.fmt, args.quiet,
......
rpg/core.py
View file @ 409509ee
......@@ -64,26 +64,27 @@ WATER_MASS = 18.01528
"""Mass of a water molecule."""
# Biochemistry Stryer 7th
#AA_PKA = {"Nterm" : 8.0,
# "C" : 8.3,
# "D" : 4.1,
# "E" : 4.1,
# "H" : 6.0,
# "K" : 10.8,
# "R" : 12.5,
# "Y" : 10.9,
# "Cterm" : 3.1}
AA_PKA_S = {"Nterm" : 8.0,
"C" : 8.3,
"D" : 4.1,
"E" : 4.1,
"H" : 6.0,
"K" : 10.8,
"R" : 12.5,
"Y" : 10.9,
"Cterm" : 3.1}
"""pKa of important amino acid to compute pI (from Stryer)."""
# IPC_peptide
AA_PKA = {"Nterm" : 9.564,
"C" : 8.297,
"D" : 3.887,
"E" : 4.317,
"H" : 6.018,
"K" : 10.517,
"R" : 12.503,
"Y" : 10.071,
"Cterm" : 2.383}
"""pKa of important amino acid to compute pI."""
AA_PKA_IPC = {"Nterm" : 9.564,
"C" : 8.297,
"D" : 3.887,
"E" : 4.317,
"H" : 6.018,
"K" : 10.517,
"R" : 12.503,
"Y" : 10.071,
"Cterm" : 2.383}
"""pKa of important amino acid to compute pI (from IPC)."""
def handle_errors(message="", err=1, error_type=""):
"""Custom handling of errors and warnings.
......
rpg/digest.py
View file @ 409509ee
......@@ -205,13 +205,15 @@ class ResultOneDigestion:
ret += "C terminal peptide: " + self.peptides[-1].sequence
return ret
def one_digest(pep, enz):
def one_digest(pep, enz, aa_pka):
"""Digest a peptide with an enzyme.
:param pep: peptide to digest
:param enz: enzyme to digest with
:param aa_pka: pKa values (IPC / Stryer)
:type pep: :py:class:`~rpg.sequence.Peptide`
:type enz: :py:class:`~rpg.enzyme.Enzyme`
:type aa_pka: str
:return: result of the digestion
:rtype: :py:class:`ResultOneDigestion`
......@@ -235,7 +237,7 @@ def one_digest(pep, enz):
after = False
tmp_seq = pep.sequence[previous_pos:pos]
tmp_peptide = sequence.Peptide(pep.header, tmp_seq, enzyme_name,
cpt, pos + original_pos)
aa_pka, cpt, pos + original_pos)
ret.add_peptide(tmp_peptide)
cpt += 1
a_cut_occurs = True
......@@ -272,7 +274,8 @@ def one_digest(pep, enz):
if previous_pos != pos:
tmp_seq = pep.sequence[previous_pos:pos]
tmp_peptide = sequence.Peptide(pep.header, tmp_seq,
enzyme_name, cpt,
enzyme_name, aa_pka,
cpt,
pos + original_pos)
ret.add_peptide(tmp_peptide)
cpt += 1
......@@ -291,45 +294,49 @@ def one_digest(pep, enz):
if a_cut_occurs:
tmp_pos = len(pep.sequence) # Last portion of protein
tmp_seq = pep.sequence[previous_pos:]
tmp_peptide = sequence.Peptide(pep.header, tmp_seq, enzyme_name, cpt,
tmp_pos + original_pos)
tmp_peptide = sequence.Peptide(pep.header, tmp_seq, enzyme_name,
aa_pka, cpt, tmp_pos + original_pos)
ret.add_peptide(tmp_peptide)
# Not cut, don't change the peptide
else:
ret.add_peptide(pep)
return ret
def digest_one_sequence(seq, enz, mode):
def digest_one_sequence(seq, enz, mode, aa_pka):
"""Launch a digest procedure on one sequence.
:param sequence: sequence to digest
:param enz: enzymes to digest with
:param mode: digestion mode (concurrent / sequential)
:param aa_pka: pKa values (IPC / Stryer)
:type sequence: :py:class:`~rpg.sequence.Sequence`
:type enz: list(:py:class:`~rpg.enzyme.Enzyme`)
:type mode: str
:type aa_pka: str
:return: result of the digestion
:rtype: list(:py:class:`ResultOneDigestion`)
"""
ret = None
if mode == "sequential":
ret = sequential_digest(seq, enz)
ret = sequential_digest(seq, enz, aa_pka)
elif mode == "concurrent":
ret = concurrent_digest(seq, enz)
ret = concurrent_digest(seq, enz, aa_pka)
else:
core.handle_errors("not able to understand digetion mode. Switching "
"to 'sequential'.")
ret = sequential_digest(seq, enz)
ret = sequential_digest(seq, enz, aa_pka)
return ret
def sequential_digest(seq, enz):
def sequential_digest(seq, enz, aa_pka):
"""Sequentially digest a sequence with all Enzymes, **one by one**.
:param seq: sequence to digest
:param enz: enzymes to digest with
:param aa_pka: pKa values (IPC / Stryer)
:type seq: :py:class:`~rpg.sequence.Sequence`
:type enz: list(:py:class:`~rpg.enzyme.Enzyme`)
:type aa_pka: str
:return: result of the digestion
:rtype: list(:py:class:`ResultOneDigestion`)
......@@ -338,19 +345,22 @@ def sequential_digest(seq, enz):
# Check each enzymes
for an_enz in enz:
# Create a fake peptide from input sequence
fake_peptide = sequence.Peptide(seq.header, seq.sequence, an_enz.name)
fake_peptide = sequence.Peptide(seq.header, seq.sequence, an_enz.name,
aa_pka)
# Digest it
ret.append(one_digest(fake_peptide, an_enz))
ret.append(one_digest(fake_peptide, an_enz, aa_pka))
return ret
def concurrent_digest(seq, enz):
def concurrent_digest(seq, enz, aa_pka):
"""Concurrently digest a sequence with all Enzymes **at the same
time**.
:param seq: sequence to digest
:param enz: enzymes to digest with
:param aa_pka: pKa values (IPC / Stryer)
:type seq: :py:class:`~rpg.sequence.Sequence`
:type enz: list(:py:class:`~rpg.enzyme.Enzyme`)
:type aa_pka: str
:return: result of the digestion
:rtype: list(:py:class:`ResultOneDigestion`)
......@@ -363,7 +373,7 @@ def concurrent_digest(seq, enz):
enzymes_name_to_write = enzymes_name_to_write[:-1]
# First peptide is the sequence itself
fake_peptide = sequence.Peptide(seq.header, seq.sequence,
enzymes_name_to_write)
enzymes_name_to_write, aa_pka)
# Result is currently just the sequence (list of one peptide)
result = ResultOneDigestion(enzymes_name_to_write, [fake_peptide])
# Do we digest as much as we can?
......@@ -380,7 +390,8 @@ def concurrent_digest(seq, enz):
# remove them from the global result
for peptide in result.pop_peptides():
# Digest it, return a list of ResultOneDigestion
all_res_digestion_tmp.append(one_digest(peptide, an_enz))
all_res_digestion_tmp.append(one_digest(peptide, an_enz,
aa_pka))
# Merge the result of digestion with previous result
for i in all_res_digestion_tmp:
result.merge(i)
......@@ -398,16 +409,18 @@ def concurrent_digest(seq, enz):
# it will be one result by enzyme
return [result]
def digest_from_input(input_data, enz, mode):
def digest_from_input(input_data, enz, mode, aa_pka):
"""Digest all sequences of input data with
selected enzymes and mode.
:param input_data: either a sequence or a file of sequence (fasta/fastq)
:param enz: enzymes to digest with
:param mode: digestion mode (concurrent / sequential)
:param aa_pka: pKa values (IPC / Stryer)
:type input_data: str
:type enz: list(:py:class:`~rpg.enzyme.Enzyme`)
:type mode: str
:type aa_pka: str
:return: result of digestions
:rtype: list(list(:py:class:`ResultOneDigestion`))
......@@ -436,7 +449,7 @@ def digest_from_input(input_data, enz, mode):
sequence.check_sequence(seq))
# Digest sequence
results_digestion.append(digest_one_sequence
(tmp_seq, enz, mode))
(tmp_seq, enz, mode, aa_pka))
seq = ""
header = tmp_line
tmp_line = in_file.readline().strip()
......@@ -445,7 +458,7 @@ def digest_from_input(input_data, enz, mode):
sequence.check_sequence(seq))
# Digest it
results_digestion.append(digest_one_sequence(tmp_seq, enz,
mode))
mode, aa_pka))
# Fastq file
elif header_first_car == "@":
header = in_file.readline().strip()
......@@ -454,9 +467,8 @@ def digest_from_input(input_data, enz, mode):
tmp_seq = sequence.Sequence(header[1:],
sequence.check_sequence(seq))
# Digest sequence
results_digestion.append(digest_one_sequence(tmp_seq,
enz,
mode))
results_digestion.append(digest_one_sequence(tmp_seq, enz,
mode, aa_pka))
in_file.readline()
in_file.readline()
header = in_file.readline().strip()
......@@ -468,6 +480,7 @@ def digest_from_input(input_data, enz, mode):
tmp_seq = sequence.Sequence("Input",
sequence.check_sequence(input_data))
# Digest the sequence
results_digestion.append(digest_one_sequence(tmp_seq, enz, mode))
results_digestion.append(digest_one_sequence(tmp_seq, enz, mode,
aa_pka))
# Return all peptides
return results_digestion
rpg/enzymes_definition.py
View file @ 409509ee
......@@ -931,7 +931,7 @@ ENZ.append(AFTER_G)
ENZ.append(AFTER_S)
ENZ.append(AFTER_E)
ENZ.append(AFTER_Y)
ENZYME = enzyme.Enzyme(CPT_ENZ, "Papain", ENZ, 0)
ENZYME = enzyme.Enzyme(CPT_ENZ, "Ficin", ENZ, 0)
# Add it to available enzymes
AVAILABLE_ENZYMES.append(ENZYME)
CPT_ENZ += 1
......@@ -1398,42 +1398,6 @@ CPT_ENZ += 1
# Tobacco etch virus protease
# https://web.expasy.org/peptide_cutter/peptidecutter_enzymes.html#TEV
# RULES: cleaves between Q (P1) and G or S in P1' when Y in P3 and E in P6.
# RULES: cleaves after E-Xaa-Xaa-Y-Xaa-Q-(G/S)
ENZ = []
# Cutting rule
AFTER_Q = rule.Rule(0, "Q", False, 1) # Never cleaves after Q, except...
# Exceptions
EXECPT_QG = rule.Rule(1, "G", False, -1) # Never cleaves after Q, followed by G
EXECPT_QS = rule.Rule(1, "S", False, -1) # Never cleaves after Q, followed by S
EXECPT_Y_Qx = rule.Rule(-2, "Y", False, -1) # Never cleaves after Q, followed by G/S, preceded by Y
EXECPT_E__Y_Qx = rule.Rule(-5, "E", True, -1) # Always cleaves after Q, followed by G/S, preceded by Y and preceded by E
# Add exception to cutting rules:
EXECPT_Y_Qx.rules.append(EXECPT_E__Y_Qx)
EXECPT_QG.rules.append(EXECPT_Y_Qx)
EXECPT_QS.rules.append(EXECPT_Y_Qx)
# Add exception to cutting rules
AFTER_Q.rules.append(EXECPT_QG)
AFTER_Q.rules.append(EXECPT_QS)
# Add rules to enzyme
ENZ.append(AFTER_Q)
ENZYME = enzyme.Enzyme(CPT_ENZ, "Tobacco-Etch-Virus", ENZ, 0)
# Add it to available enzymes
AVAILABLE_ENZYMES.append(ENZYME)
CPT_ENZ += 1
# Thermolysin
# https://web.expasy.org/peptide_cutter/peptidecutter_enzymes.html#Therm
# RULES: cleaves before A,F,I,L,M or V (P1') not preceded by D or E in P1 and not followed by P in P2'
......@@ -1693,6 +1657,42 @@ CPT_ENZ += 1
# Tobacco etch virus protease
# https://web.expasy.org/peptide_cutter/peptidecutter_enzymes.html#TEV
# RULES: cleaves between Q (P1) and G or S in P1' when Y in P3 and E in P6.
# RULES: cleaves after E-Xaa-Xaa-Y-Xaa-Q-(G/S)
ENZ = []
# Cutting rule
AFTER_Q = rule.Rule(0, "Q", False, 1) # Never cleaves after Q, except...
# Exceptions
EXECPT_QG = rule.Rule(1, "G", False, -1) # Never cleaves after Q, followed by G
EXECPT_QS = rule.Rule(1, "S", False, -1) # Never cleaves after Q, followed by S
EXECPT_Y_Qx = rule.Rule(-2, "Y", False, -1) # Never cleaves after Q, followed by G/S, preceded by Y
EXECPT_E__Y_Qx = rule.Rule(-5, "E", True, -1) # Always cleaves after Q, followed by G/S, preceded by Y and preceded by E
# Add exception to cutting rules:
EXECPT_Y_Qx.rules.append(EXECPT_E__Y_Qx)
EXECPT_QG.rules.append(EXECPT_Y_Qx)
EXECPT_QS.rules.append(EXECPT_Y_Qx)
# Add exception to cutting rules
AFTER_Q.rules.append(EXECPT_QG)
AFTER_Q.rules.append(EXECPT_QS)
# Add rules to enzyme
ENZ.append(AFTER_Q)
ENZYME = enzyme.Enzyme(CPT_ENZ, "Tobacco-Etch-Virus", ENZ, 0)
# Add it to available enzymes
AVAILABLE_ENZYMES.append(ENZYME)
CPT_ENZ += 1
# Trypsin
# https://web.expasy.org/peptide_cutter/peptidecutter_enzymes.html#Tryps
# RULES: after K except if next aa is P. This rule doesn't apply if W is before K
......
rpg/sequence.py
View file @ 409509ee
......@@ -33,11 +33,13 @@ class Peptide:
:param header: header of the peptide
:param sequence: sequence in amino acids
:param enzyme_name: name of the enzyme used
:param aa_pka: pKa values (IPC / Stryer)
:param nb_peptide: number of this peptide (default: 0)
:param position: position of cleavage on the original sequence (default: 0)
:type header: str
:type sequence: str
:type enzyme_name: str
:type aa_pka: str
:type nb_peptide: int
:type position: int
......@@ -48,10 +50,12 @@ class Peptide:
:vartype mass: float
:vartype p_i: float
"""
def __init__(self, header, sequence, enzyme_name, nb_peptide=0, position=0):
def __init__(self, header, sequence, enzyme_name, aa_pka, nb_peptide=0,
position=0):
self.header = header # header of this peptide
self.sequence = sequence # peptide sequence
self.enzyme_name = enzyme_name # name of the enzyme used
self.aa_pka = aa_pka # pKa values for pI calculation
self.nb_peptide = nb_peptide # number of this peptide
self.position = position # position of cleavage
self.size = len(sequence) # size of the peptide
......@@ -64,11 +68,15 @@ class Peptide:
# self representation for print
def __repr__(self):
pka = "IPC"
if self.aa_pka == core.AA_PKA_S:
pka = "Stryer"
return "Original header: " + self.header + "\nNo. peptide: " + \
str(self.nb_peptide) + "\nEnzyme: " + self.enzyme_name + \
"\nCleav. pos: " + str(self.position) + "\nPep. size: " + \
str(self.size) + "\nPep. mass: " + str(self.mass) + "\nPep. pI: " \
+ str(self.p_i) + "\nSequence: " + self.sequence + "\n"
str(self.size) + "\nPep. mass: " + str(self.mass) + \
"\npKa values from: " + pka + "\nPep. pI: " + str(self.p_i) +\
"\nSequence: " + self.sequence + "\n"
# Equality between two Peptides
def __eq__(self, other):
......@@ -117,22 +125,22 @@ class Peptide:
# While we are not precise enough
while (ph_val-ph_min > precision) or (ph_max-ph_val > precision):
# Compute the pI
qn1 = -1.0 / (1.0 + pow(10, (core.AA_PKA["Cterm"] - ph_val)))
qn2 = -self.sequence.count('D') / (1.0 + pow(10, (core.AA_PKA["D"]-
qn1 = -1.0 / (1.0 + pow(10, (self.aa_pka["Cterm"] - ph_val)))
qn2 = -self.sequence.count('D') / (1.0 + pow(10, (self.aa_pka["D"]-
ph_val)))
qn3 = -self.sequence.count('E') / (1.0 + pow(10, (core.AA_PKA["E"]-
qn3 = -self.sequence.count('E') / (1.0 + pow(10, (self.aa_pka["E"]-
ph_val)))
qn4 = -self.sequence.count('C') / (1.0 + pow(10, (core.AA_PKA["C"]-
qn4 = -self.sequence.count('C') / (1.0 + pow(10, (self.aa_pka["C"]-
ph_val)))
qn5 = -self.sequence.count('Y') / (1.0 + pow(10, (core.AA_PKA["Y"]-
qn5 = -self.sequence.count('Y') / (1.0 + pow(10, (self.aa_pka["Y"]-
ph_val)))
qp1 = self.sequence.count('H') / (1.0 + pow(10, (ph_val -
core.AA_PKA["H"])))
qp2 = 1.0 / (1.0 + pow(10, (ph_val - core.AA_PKA["Nterm"])))
self.aa_pka["H"])))
qp2 = 1.0 / (1.0 + pow(10, (ph_val - self.aa_pka["Nterm"])))
qp3 = self.sequence.count('K') / (1.0 + pow(10, (ph_val -
core.AA_PKA["K"])))
self.aa_pka["K"])))
qp4 = self.sequence.count('R') / (1.0 + pow(10, (ph_val -
core.AA_PKA["R"])))
self.aa_pka["R"])))
nq_final = qn1 + qn2 + qn3 + qn4 + qn5 + qp1 + qp2 + qp3 + qp4
# We are below solution, good pH value must be smaller
if nq_final < 0.0:
......
setup.py
View file @ 409509ee
......@@ -4,7 +4,7 @@ from setuptools import setup, find_packages
_MAJOR = 1
_MINOR = 0
_MICRO = 6
_MICRO = 7
version = '%d.%d.%d' % (_MAJOR, _MINOR, _MICRO)
release = '%d.%d' % (_MAJOR, _MINOR)
......
tests/test_RapidPeptidesGenerator.py
View file @ 409509ee
......@@ -49,17 +49,15 @@ def test_list_enzyme(capsys):
RapidPeptidesGenerator.list_enzyme()
out, _ = capsys.readouterr()
assert out == "1: Arg-C\n2: Asp-N\n3: BNPS-Skatole\n4: Bromelain\n5: Casp"\
"ase-1\n6: Caspase-2\n7: Caspase-3\n8: Caspase-4\n9: Caspas"\
"e-5\n10: Caspase-6\n11: Caspase-7\n12: Caspase-8\n13: Casp"\
"ase-9\n14: Caspase-10\n15: Chymotrypsin-high\n16: Chymotry"\
"psin-low\n17: Clostripain\n18: CNBr\n19: Enterokinase\n20:"\
" Factor-Xa\n21: Papain\n22: Formic-acid\n23: Glu-C\n24: Gl"\
"utamyl-endopeptidase\n25: Granzyme-B\n26: Hydroxylamine\n2"\
"7: Iodosobenzoic-acid\n28: Lys-C\n29: Lys-N\n30: Neutrophi"\
"l-elastase\n31: NTCB\n32: Papain\n33: Pepsin-pH1.3\n34: Pe"\
"psin-pH>=2\n35: Proline-endopeptidase\n36: Proteinase-K\n3"\
"7: Staphylococcal-peptidase-I\n38: Tobacco-Etch-Virus\n39:"\
" Thermolysin\n40: Thrombin\n41: Thrombin-SG\n42: Trypsin\n"
"ase-1\n6: Caspase-2\n7: Caspase-3\n8: Caspase-4\n9: Caspase-5\n10: Caspa"\
"se-6\n11: Caspase-7\n12: Caspase-8\n13: Caspase-9\n14: Caspase-10\n15: C"\
"hymotrypsin-high\n16: Chymotrypsin-low\n17: Clostripain\n18: CNBr\n19: E"\
"nterokinase\n20: Factor-Xa\n21: Ficin\n22: Formic-acid\n23: Glu-C\n24: G"\
"lutamyl-endopeptidase\n25: Granzyme-B\n26: Hydroxylamine\n27: Iodosobenz"\
"oic-acid\n28: Lys-C\n29: Lys-N\n30: Neutrophil-elastase\n31: NTCB\n32: P"\
"apain\n33: Pepsin-pH1.3\n34: Pepsin-pH>=2\n35: Proline-endopeptidase\n36"\
": Proteinase-K\n37: Staphylococcal-peptidase-I\n38: Thermolysin\n39: Thr"\
"ombin\n40: Thrombin-SG\n41: Tobacco-Etch-Virus\n42: Trypsin\n"
def test_create_enzymes_to_use(capsys):
"""Test function 'create_enzymes_to_use(enzymes, miscleavage)'"""
......
tests/test_core.py
View file @ 409509ee
......@@ -75,7 +75,8 @@ def test_output_results(capsys, tmpdir):
# CSV output
seq = "WQSDESDFZQSDESDF"
all_seq_digested = digest.digest_from_input(seq, enzymes, mode)
aa_pka = core.AA_PKA_IPC
all_seq_digested = digest.digest_from_input(seq, enzymes, mode, aa_pka)
output_file = tmpdir.join("test_result.csv")
fmt = "csv"
quiet = False
......@@ -127,7 +128,7 @@ def test_output_results(capsys, tmpdir):
# CSV output in quiet
seq = "WQSDESDFZQSDESDF"
all_seq_digested = digest.digest_from_input(seq, enzymes, mode)
all_seq_digested = digest.digest_from_input(seq, enzymes, mode, aa_pka)
output_file = tmpdir.join("test_result.csv")
fmt = "csv"
quiet = True
......@@ -148,7 +149,7 @@ def test_output_results(capsys, tmpdir):
# CSV output in verbose > 2
seq = "WQSDESDFZQSDESDF"
all_seq_digested = digest.digest_from_input(seq, enzymes, mode)
all_seq_digested = digest.digest_from_input(seq, enzymes, mode, aa_pka)
output_file = tmpdir.join("test_result.csv")
fmt = "csv"
quiet = False
......@@ -176,23 +177,25 @@ def test_peptide():
header = "Test"
seq = "QWSDESDF"
enz_name = "fake_enzyme"
pep0 = sequence.Peptide(header, seq, enz_name, 1, 3)
aa_pka = core.AA_PKA_IPC
pep0 = sequence.Peptide(header, seq, enz_name, aa_pka, 1, 3)
# Test function '__repr__()'
print_res = pep0.__repr__()
assert print_res == "Original header: Test\nNo. peptide: 1\nEnzyme: fake_"\
"enzyme\nCleav. pos: 3\nPep. size: 8\nPep. mass: 1012"\
".98488\nPep. pI: 2.91\nSequence: QWSDESDF\n"