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Quantification for residual host cell DNA contamination in the rAAV prep via qPCR or ddPCR analysis targeting highly repetitive genome sequences

DNA ImpurityTargetSequences
PlasmidKanRprimers: 5′-gggcgcccggttctttttgtc-3′ and
5′-gccagtcccttcccgcttcagtg-3′.
AmpRprimers: 5′-cgcgccacatagcagaactt-3′ and
5′-cgccccgaagaacgttt-3′;
probe: R-5′-aaaagtgctcatcattg-3′-Q;
and other sequences.
Adenovirus E2Aprimers: 5′-ttgctgaaacccaccatttg-3′ and
5′-tcgtggacagcgaggaaga-3′;
probe: R-5′-cgccacatcttctct-3′-Q.
Adenovirus E4primers: 5′-tcggcgcactccgtaca-3′ and
5′-cgcgggtctctgtctcaaaa-3′;
probe: R-5′-tagggatcgcctacctc-3′-Q.
HSV UL23primers: 5′-tcgatgtgtctgtcctccg-3′ and
5′-atcccatcgccgccctc-3′.
HSV UL24primers: 5′-gccgcgagaacgcgcag-3′ and
5′-cctcgaataccgagcgacc-3′.
HSV UL26.5primers: 5′-catgtccttccacccagac-3′ and
5′-cccatcatctgagagacgaa-3′;
probe: R-5′-cagcacacgtggacgttgacac-3′-Q.
HSV UL29primers: 5′-ccgcctatggttaccttgtc-3′ and
5′-ccctcctgtatctggtcgtt-3′;
probe: R-5′-agcctcccaggtgcagaaaggt-3′-Q.
HSV UL33primers: 5′- cgaactttacgggacacaatc-3′ and
5′-cgtagtcgggaagacaacct-3′;
probe: R-5′-tagacgcgcgctacgtctcg-3′-Q.
HSV UL35primers: 5′-acgcaaacaacacgtttacc-3′ and
5′-tcgaaggttctcgaacgac-3′;
probe: R-5′-cggcgcacctattcaccgttt-3′-Q.
Oriprimers: 5′-gcgcgtaatctgctgcttg-3′ and
5′-ctacggctacactagaagaacagta-3′;
probe: R-5′-cgctctgctgaagccagttaccttcgg-3′-Q.
cap8primers: 5′-tcagccaaggtgggcctaatacaa-3′ and
5′-ttgctgctgcaagttatctgccac-3′;
and other sequences.
rep2primers: 5′-cggggttttacgagattgtg-3′ and
5′-cgccatttctggtctttgtg-3′.
cap2primers: 5′-ttctcagatgctgcgtaccggaaa-3′ and
5′-tctgccattgaggtggtacttggt-3′.
Host cell DNAhuman Aluprimers: 5′-gaggcgggcggatca-3′ and
5′-cccggctaatttttgtatttttagtag-3′;
probe: R-5′-cagcctggccaacatggtgaaacc-3′-Q;
and other sequences.
Adenovirus E1Aprimers: 5′-gggtgaggagtttgtgttagattatg-3′ and
5′-tcctccggtgataatgacaaga-3′;
probe: R-5′-agcaccccgggcacggttg-3′-Q.
chinese hamster Aluprimers: 5′-agagatggctcgaggttaag-3′ and
5′-tctgcacaccagaagagg-3′;
probe: R-5′-agcaccaactgctcttccagagg-3′-Q.
Syrian hamster 5S rRNAprimers: 5′-cgcagcagcaggctct-3′ and
5′-accctgcttagcttccgaga-3′;
probe: R-5′-ccgccgtcgtctacggccatacc-3′-Q.
rcAAVITR-Rep recombinantsprimers: 5′-actccatcactaggggttct-3′ and
5′-gctggggaccttaatcacaa-3′.

R—probe reporter, Q—probe quencher and HSV—herpes simplex virus.

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