Exemplo n.º 1
0
 def test_search_premade_batches(self):
     """Test search with pre-made batches CommOnly, NoComm, AllEnzymes."""
     seq = Seq('ACCCGAATTCAAAACTGACTGATCGATCGTCGACTG', IUPACAmbiguousDNA())
     search = AllEnzymes.search(seq)
     self.assertEqual(search[MluCI], [6])
     # Check if '/' operator works as 'search':
     search = CommOnly / seq
     self.assertEqual(search[MluCI], [6])
     # Also in reverse order:
     search = seq / NonComm
     self.assertEqual(search[McrI], [28])
Exemplo n.º 2
0
 def test_search_premade_batches(self):
     """Test search with pre-made batches CommOnly, NoComm, AllEnzymes."""
     seq = Seq('ACCCGAATTCAAAACTGACTGATCGATCGTCGACTG', IUPACAmbiguousDNA())
     search = AllEnzymes.search(seq)
     self.assertEqual(search[MluCI], [6])
     # Check if '/' operator works as 'search':
     search = CommOnly / seq
     self.assertEqual(search[MluCI], [6])
     # Also in reverse order:
     search = seq / NonComm
     self.assertEqual(search[McrI], [28])
Exemplo n.º 3
0
 def get_product_seq(self):
     seq = self.template_seq
     enzyme = AllEnzymes.get(self.enzyme_name)
     sites = enzyme.search(seq)
     site = -1 + one(
         sites,
         ValueError(
             f"{self.enzyme_name!r} does not cut {self.template_tag!r}."),
         ValueError(
             f"{self.enzyme_name!r} cuts {self.template_tag!r} {len(sites)} times."
         ),
     )
     return seq[site:] + seq[:site]
Exemplo n.º 4
0
    os.makedirs(OUT_DIR, exist_ok=True)
    DEL_COORDS = (args.DEL_START, args.DEL_END)
    DEL_NAME = args.DEL_NAME
    HR_LENGTH = args.HR_LENGTH
    ENZYME = args.ENZYME

    # Check input
    try:
        genome = SeqIO.read(GENOME, "fasta")
    except (FileNotFoundError, ValueError):
        raise SystemExit("\n\terror: could not read genome file\n")
    if (not all([coord in range(1, len(genome)+1) for coord in DEL_COORDS])
            or DEL_COORDS[0] >= DEL_COORDS[1]):
        raise SystemExit("\n\terror: invalid deletion coordinates\n")
    if ENZYME in AllEnzymes:
        enzyme = AllEnzymes.get(ENZYME)
    else:
        raise SystemExit("\n\terror: restriction enzyme not found\t")

    log = open(os.path.join(OUT_DIR, DEL_NAME + "_primer_design.txt"), "w")

    # Define initial regions
    del_region = Region(DEL_COORDS, genome)
    margin1_coords = (del_region.s() - MARGIN_SIZE + INTERNAL_MARGIN,
                      del_region.s() + INTERNAL_MARGIN)
    margin1 = Region(margin1_coords, genome)
    margin2_coords = (del_region.e() - INTERNAL_MARGIN,
                      del_region.e() + MARGIN_SIZE - INTERNAL_MARGIN)
    margin2 = Region(margin2_coords, genome)
    log.write(
        sep + "##### PRIMER DESIGN FOR DELETION '%s' %d - %d (%.1f kb) #####\n"