2023-09-29 13:20:49 -04:00

373 lines
15 KiB
Python

#!/usr/bin/env python3.5
##__Updated__: 16_10_2017
##__Author__: Xyrus Maurer-Alcala; maurerax@gmail.com
##__Usage__: python 3_CountOGsDiamond.py --help
##########################################################################################
## This script is intended to classify the STRONGLY Eukaryotic and UNDETERMINED/UNKNOWN ##
## contigs into different OGs (e.g. orthologous gene-families) ##
## ##
## For more info about the OGs, check out: OrthoMCL.org ##
## ##
## Prior to running this script, ensure the following: ##
## ##
## 1. You have assembled your transcriptome and COPIED the 'assembly' file ##
## (contigs.fasta, or scaffolds.fasta) to the PostAssembly Folder ##
## 2. Removed small sequences (usually sequences < 300bp) with ContigFilterPlusStats.py ##
## 3. Removed SSU/LSU sequences from your Fasta File ##
## ##
## E-mail Xyrus (author) for help if needed: maurerax@gmail.com ##
## ##
## Next Script(s) to Run: ##
## 4_StopFrequency.py ##
## ##
##########################################################################################
import argparse, os, sys, re
from argparse import RawTextHelpFormatter,SUPPRESS
from distutils import spawn
from Bio import SeqIO
#------------------------------ Colors For Print Statements ------------------------------#
class color:
PURPLE = '\033[95m'
CYAN = '\033[96m'
DARKCYAN = '\033[36m'
ORANGE = '\033[38;5;214m'
BLUE = '\033[94m'
GREEN = '\033[92m'
YELLOW = '\033[93m'
RED = '\033[91m'
BOLD = '\033[1m'
UNDERLINE = '\033[4m'
END = '\033[0m'
#------------------------------- Main Functions of Script --------------------------------#
###########################################################################################
###---------------------------- UPDATE DIAMOND PATH BELOW! -----------------------------###
###########################################################################################
## IF Diamond is IN YOUR PATH then no updating is needed...
def check_diamond_path():
diamond_path = ''
if diamond_path == '':
diamond_path = spawn.find_executable("diamond")
#diamond_path = '/path/to/diamond'
else:
pass
if diamond_path == None:
print (color.BOLD + '\n\nPlease open this script and check that you have included'\
+' the PATH to the'+color.BLUE+' "usearch" '+color.END+color.BOLD+'executable.\n\n'+color.END)
print (color.BOLD+color.BLUE+'LOOK FOR:\n\n'+color.RED\
+'#------------------------------ UPDATE USEARCH PATH BELOW! -------------------------------#'\
+color.BLUE+'\n\nThis is somewhere around lines 50 - 80...\n\n'+color.END)
sys.exit()
else:
pass
return diamond_path
###########################################################################################
###--------------------- Parses and Checks Command-Line Arguments ----------------------###
###########################################################################################
def check_args():
parser = argparse.ArgumentParser(description=
color.BOLD + '\n\nThis script will categorize Contigs into'+color.ORANGE+' "Homologous" '\
+color.END+color.BOLD+'Gene Families (OGs)\nbased on '+color.RED+'OrthoMCL'+color.END\
+color.BOLD+"'s Gene Family Grouping\n\n\nNotes on this script and "+color.GREEN+\
'OrthoMCL Families'+color.END+color.BOLD+' can be found\nat the bottom of '+color.GREEN\
+'THIS script (3_CountOGsDiamond.py)\n'+color.END+usage_msg(), usage=SUPPRESS,
formatter_class=RawTextHelpFormatter)
required_arg_group = parser.add_argument_group(color.ORANGE+color.BOLD+'Required Options'+color.END)
required_arg_group.add_argument('--input_file','-in', action='store',
help=color.BOLD+color.GREEN+'Fasta file of Nucleotide sequences enriched \nwith'\
' Eukaryotic protein coding transcripts'+color.END)
required_arg_group.add_argument('--databases','-g', action='store',
help=color.BOLD+color.GREEN+"Path to fasta file with Hook sequences"+color.END)
optional_arg_group = parser.add_argument_group(color.ORANGE+color.BOLD+'Options'+color.END)
optional_arg_group.add_argument('--threads','-t', default='2',
help=color.BOLD+color.GREEN+' Number of threads to use for BLAST\n (default = 2)\n'+color.END)
optional_arg_group.add_argument('--evalue','-e', default=1e-5, type = float,
help=color.BOLD+color.GREEN+' Maximum e-value for OG assignment\n (default = 1e-5)\n'+color.END)
optional_arg_group.add_argument('-author', action='store_true',
help=color.BOLD+color.GREEN+' Prints author contact information\n'+color.END)
if len(sys.argv[1:]) == 0:
print (parser.description)
print ('\n')
sys.exit()
args = parser.parse_args()
quit_eval = return_more_info(args)
if quit_eval > 0:
sys.exit()
return args
###########################################################################################
###------------------------------- Script Usage Message --------------------------------###
###########################################################################################
def usage_msg():
return (color.BOLD+color.RED+'\n\nExample usage:'+color.CYAN+' python 3_CountOGsDiamond.py'\
' --input_file ../Op_me_Xxma/Op_me_Xxma_WTA_NBU.fasta'+color.END)
##########################################################################################
###-------- Storage for LARGE (Annoying) Print Statements for Flagged Options ---------###
##########################################################################################
def return_more_info(args):
valid_arg = 0
author = (color.BOLD+color.ORANGE+'\n\n\tQuestions/Comments? Email Xyrus (author) at'\
' maurerax@gmail.com\n\n'+color.END)
if args.author == True:
print (author)
valid_arg += 1
if args.input_file != None:
if os.path.isfile(args.input_file) != False:
if args.input_file.split('/')[-1] not in os.listdir('/'.join(args.input_file.split('/')[:-1])):
print (color.BOLD+color.RED+'\nError:'+color.END+color.BOLD+' The provided Fasta file '\
'('+color.DARKCYAN+args.input_file.split('/')[-1]+color.END+color.BOLD+')\ndoes not'\
' exist or is incorrectly formatted.\n\nDouble-check then try again!\n\n'+color.END)
valid_arg += 1
elif args.input_file.endswith('WTA_EPU.fasta') != True:
print (color.BOLD+'\n\nInvalid Fasta File! Only Fasta Files that were processed'\
' with '+color.GREEN+'2b_remove_Bact.py '+color.END+color.BOLD+'are valid\n\n'\
'However, to bypass that issue, Fasta Files MUST end with '+color.CYAN+\
'"WTA_NBU.fasta"\n\n'+color.END)
valid_arg += 1
else:
print (color.BOLD+color.RED+'\nError:'+color.END+color.BOLD+' The provided Fasta file '\
'('+color.DARKCYAN+args.input_file.split('/')[-1]+color.END+color.BOLD+')\ndoes not'\
' exist or is incorrectly formatted.\n\nDouble-check then try again!\n\n'+color.END)
valid_arg += 1
if os.path.isdir(args.databases + '/db_OG') != True:
print (color.BOLD+color.RED+'\nError:'+color.END+color.BOLD+' Cannot find the '\
+color.ORANGE+'db_OG Folder!\n\n'+color.END+color.BOLD+'Ensure that this folder '\
'can be found in the main '+color.ORANGE+'Databases Folder'+color.END+color.BOLD\
+'\n\nThen try once again\n\n.'+color.END)
valid_arg += 1
ogdb_count = 0
for file in os.listdir(args.databases + '/db_OG'):
if file.endswith('.dmnd'):
ogdb_count += 1
if ogdb_count == 0:
print (color.BOLD+color.RED+'\nError:'+color.END+color.BOLD+' Cannot find the '\
'Diamond formatted '+color.ORANGE+'Gene Family databases!\n\n'+color.END+color.BOLD+\
'Ensure that they can be found in the '+color.ORANGE+'db_OG folder'+color.END+\
color.BOLD+',\nwhich can be found in the main '+color.ORANGE+'Databases Folder'+\
color.END+color.BOLD+'\n\nThen try once again.\n\n'+color.END)
valid_arg += 1
elif ogdb_count > 1:
print('\nMultiple OG databases found. Please only provide 1 database in the db_OG folder.\n')
valid_arg += 1
return valid_arg
###########################################################################################
###--------------------------- Does the Inital Folder Prep -----------------------------###
###########################################################################################
def prep_folders(args):
OG_folder = '/'.join(args.input_file.split('/')[:-1]) + '/DiamondOG/'
if os.path.isdir(OG_folder) != True:
os.system('mkdir '+OG_folder)
###########################################################################################
###--------------------- Runs Diamond on Split OrthoMCL Databases ----------------------###
###########################################################################################
def OG_diamond(args, diamond_path):
print (color.BOLD+'\nStarting to "BLAST" against OG databases'+color.END)
OG_folder = '/'.join(args.input_file.split('/')[:-1]) + '/DiamondOG/'
db = [file for file in os.listdir(args.databases + '/db_OG') if file.endswith('.dmnd')][0]
print (color.BOLD + '\n\n"BLAST"-ing against OG database using DIAMOND: ' + color.DARKCYAN + db + color.END + '\n\n')
OG_diamond_cmd = diamond_path + ' blastx -q ' + args.input_file + ' -d ' + args.databases + '/db_OG/' + db + ' --evalue ' + str(args.evalue) + ' --threads 60 --subject-cover 0.35 --outfmt 6 -o ' + OG_folder + 'allOGresults.tsv'
os.system(OG_diamond_cmd)
###########################################################################################
###--------------- Keeps the Single BEST Hit (HSP-score) Per Transcript ----------------###
###########################################################################################
def keep_best(args):
print (color.BOLD+color.PURPLE+'\n\nProcessing OG-database results to keep only the BEST match for each transcript\n\n'+color.END)
OG_folder = '/'.join(args.input_file.split('/')[:-1]) + '/DiamondOG/'
inTSV = [i for i in open(OG_folder + 'allOGresults.tsv').readlines()]
inTSV.sort(key = lambda x: -float(x.split('\t')[-1]))
keep = []
for i in inTSV:
if any(i.split('\t')[0] in j for j in keep) != True:
keep.append(i)
updated_lines = list(set([line.split('\t')[0]+'_'+'_'.join(line.split('\t')[1].split('_')[-2:])+'\t'+'\t'.join(line.split('\t')[1:]) for line in keep]))
with open(args.input_file.replace('.fasta','.Renamed_allOGCleanresults.tsv'), 'w+') as w:
for i in updated_lines:
w.write(i)
###########################################################################################
###-------- Copies and Updates Names of Transcripts With OG Hits to New Fasta ----------###
###########################################################################################
def update_fasta(args):
print (color.BOLD+color.PURPLE+'Updating Fasta File Sequence Names with their BEST OG hits\n\n'+color.END)
Renamed_TSV = args.input_file.replace('.fasta','.Renamed_allOGCleanresults.tsv')
keep = [i for i in open(Renamed_TSV).readlines() if i != '\n']
keep_dict = { }
for line in keep:
try:
og_number = re.split('OG.{1}_', line.split('\t')[1])[1][:6]
og_prefix = line.split('\t')[1].split(og_number)[0][-4:]
og = og_prefix + og_number
keep_dict.update({ re.split('_OG.{1}_', line.split('\t')[0])[0] : re.split('_OG.{1}_', line.split('\t')[0])[0] + '_' + og_prefix + line.split('\t')[1].split('_')[-1] })
except IndexError:
pass
inFasta = [i for i in SeqIO.parse(args.input_file,'fasta')]
updated_seq_name = ['>'+keep_dict[i.description]+'\n'+str(i.seq)+'\n' for i in inFasta if i.description in keep_dict.keys()]
seqs_without_OG = ['>'+i.description+'\n'+str(i.seq)+'\n' for i in inFasta if i.description not in keep_dict.keys()]
with open(args.input_file.replace('.fasta','.Renamed.fasta'),'w+') as w:
for i in updated_seq_name:
w.write(i)
with open(args.input_file.replace('.fasta','.LackOG.fasta'),'w+') as x:
for i in seqs_without_OG:
x.write(i)
###########################################################################################
###-------------------- Updates Log With OG Assignment Information ---------------------###
###########################################################################################
def update_log(args):
if os.path.isdir('../PostAssembly_Logs/') != True:
os.system('mkdir ../PostAssembly_Logs/')
else:
pass
home_folder = '/'.join(args.input_file.split('/')[:-1]) + '/'
Renamed_TSV = home_folder+args.input_file.split('/')[-1].replace('.fasta','.Renamed_allOGCleanresults.tsv')
keep = [line for line in open(Renamed_TSV).readlines()]
all_ogs = [line.split('\t')[1].split('_')[-1] for line in keep if len(re.split('_OG.{1}_', line.split('\t')[1])) > 1]
total_with_ogs = str(len(all_ogs))
unique_ogs = str(len(set(all_ogs)))
print (color.BOLD +'There are '+color.BLUE +total_with_ogs+' Contigs'+color.END\
+color.BOLD+' that hit '+color.DARKCYAN+unique_ogs+' Unique OGs\n'+color.END)
for Logname in os.listdir(os.curdir+'./PostAssembly_Logs/'):
if Logname.startswith(args.input_file.split('/')[2].split('_WTA')[0]) and Logname.endswith('Log.txt'):
with open('../PostAssembly_Logs/'+Logname,'a') as LogFile:
LogFile.write('Contigs With OG\t'+total_with_ogs+'\tn/a\tn/a\n')
LogFile.write('Unique OGs\t'+unique_ogs+'\tn/a\tn/a\n')
##########################################################################################
###--------------------- Cleans up the Folder and Moves Final Files -------------------###
##########################################################################################
def clean_up(args):
OG_folder = '/'.join(args.input_file.split('/')[:-1]) + '/DiamondOG/'
os.system('rm ' + args.input_file)
os.system('cp ' + args.input_file.replace('.fasta','.Renamed.fasta') + ' ' + OG_folder)
os.system('cp ' + args.input_file.replace('.fasta','.Renamed_allOGCleanresults.tsv') + ' ' + OG_folder)
###########################################################################################
###-------------------------------- Next Script Message --------------------------------###
###########################################################################################
def next_script(args):
home_folder = '../'+args.input_file.split('/')[1]+'/'
print (color.BOLD+'\nLook for '+color.DARKCYAN+args.input_file.split('/')[-1]\
.replace('.fasta','WTA_EPU.fasta')+color.END+color.BOLD+' in the '+home_folder\
+' Folder\n\n' + color.END)
print (color.BOLD+'Next Script is: '+color.GREEN+'4_InFrameStopFreq.py\n\n'+ color.END)
##########################################################################################
###--------------- Checks Command Line Arguments and Calls on Functions ---------------###
##########################################################################################
def main():
usearch_path = check_diamond_path()
args = check_args()
prep_folders(args)
OG_diamond(args, usearch_path)
keep_best(args)
update_fasta(args)
#update_log(args)
clean_up(args)
next_script(args)
main()