Table 1 TP ODNs: sequences, molecular weight analysis and net charge at pH 7.4

From: Peptide-substituted oligonucleotide synthesis and non-toxic, passive cell delivery

TP ODN

Sequence

Molecular weight

Net charge

  

Calculated

Observed

 

4K

5′-TLysGTAALysACCLysATGATGTGCTGCTLysA-3′

7469.8

7468.3

−17

6K

5′-TLysGTAAALysCLysCLysALysTGATGTGCTGCTLysA-3′

7830.0

7828.9

−15

4GR

5′-TGRGTAAGRACCGRATGATGTGCTGCTGRA-3′

7806.0

7804.9

−13

6GR

5′-TGRGTAAAGRCGRCGRAGRTGATGTGCTGCTGRA-3′

8334.3

8333.8

−9

2PA

5′-TPepAGTAAACCATGATGTGCTGCTPepAA-3′

8130.3

8128.5

−13

3PA

5′ -TPepAGTAAACCAPepATGATGTGCTGCTPepAA-3′

8820.6

8820.4

−9

2PG

5′-TPepGGTAAACCATGATGTGCTGCTPepGA-3′

8252.3

8251.7

−13

3PG

5′ -TPepGGTAAACCAPepGTGATGTGCTGCTPepGA-3′

8988.8

8988.4

−9

2PJ

5′-TPepJGTAAACCATGATGTGCTGCTPepJA-3′

8526.4

8524.9

−9

3PJ

5′-TPepJGTAAACCAPepJTGATGTGCTGCTPepJA-3′

9414.9

9414.7

−3

  1. Abbreviations: ACHN, acetylated N terminus; GR, N3-Gly-Arg-NH2; NH2, amidated C terminus; PepA, AcHN-Lys(N3)-Lys-Lys-Arg-Gly-NH2; PepG, AcHN-Lys(N3)-Arg-Arg-Arg-Gly-NH2; PepJ, AcHN-Lys(N3)-Lys-Lys-His-His-His-NH2; TP ODN, triazolylphosphonate oligodeoxynucleotide.
  2. The MALDI measurements were obtained in the negative ion mode. The number preceding the peptide/amino-acid abbreviation refers to the number of peptide triazoylphosphonate internucleotide linkages/TP ODN.