Primer3 Input -

SEQUENCE_INTERNAL_OLIGO_MIN_SIZE=18 SEQUENCE_INTERNAL_OLIGO_OPT_TM=55.0 Save this as my_primers.txt :

PRIMER_MIN_SIZE=18 PRIMER_OPT_SIZE=20 PRIMER_MAX_SIZE=25 primer3 input

Cracking the Code: A Developer’s Guide to Primer3 Input Subtitle: Mastering the plain-text interface that powers primer design. primer3 input

SEQUENCE_ID=TP53_exon7_test SEQUENCE_TEMPLATE=GGACCTGGTCCTCTGACTGCTCTTTTCACCCATCTACAGTCCCCCTTGCCGTCCCAAGCAATGGATGATTTGATGCTGTCCCCGGACGATATTGAACAATGGTTCACTGAAGACCCAGGTCCAGATGAAGCTCCCAGAATGCCAGAGGCTGCTCCCCGCGTGGCCCCTGCACCAGCAGCTCCTACACCGGCGGCCCCTGCACCAGCCCCCTCCTGGCCCCTGTCATCTTCTGTCCCTTCCCAGAAAACCTACCAGGGCAGCTACGGTTTCCGTCTGGGCTTCTTGCATTCTGGGACAGCCAAGTCTGTGACTTGCACGGTCAGTTGCCCTGAGGGGCTGGCTTCCATGAGACTTCAT PRIMER_TASK=pick_pcr_primers SEQUENCE_TARGET=120,1 primer3 input

If you have ever used an online primer design tool, chances are you were using under the hood. Written in C and later wrapped in Python (Primer3-py) or web interfaces (Primer3Plus), this engine is the gold standard for picking oligonucleotides.

PRIMER_PRODUCT_SIZE_RANGE=150-250 PRIMER_PRODUCT_OPT_SIZE=200