SM2833 Chemically modified siRNA information

Field Sense Antisense
siRNA chemical modification 2-O-Methyl* 2,4-Difluorotoluene* Phosphorothioate 2-O-Methyl* Phosphorothioate
siRNA modification types 3 2
Overall number of modifications 10 3
Position of modifications 4,6,10,11,13,14,15,18 * 9 *20 8,13 * 20
Modification on sugar or base or phosphate Sugar; Base; Phosphate Sugar; Phosphate
SMILES
(Click to view structure & nomenclature)
COC1C(O)OC(CO)C1O
CC1=CC(CC2OC(CO)C(O)C2O)=C(F)C=C1F
OCC1OCC(O)C1OP(O)(S)=O

COC1C(O)OC(CO)C1O
OCC1OCC(O)C1OP(O)(S)=O


siRNA Sequence GAACGUGAAUUGCUCAACATT UGUUGAGCAAUUCACGUUCTT
siRNA length base-pair 21 21
siRNA name in paper A9 -> F (siRNA-3) A9 -> F (siRNA-3)
Biological activity IC-50 = 0.221 nM for target mRNA
Experiment used to check activity Firefly luciferase assay and chemoluminescent assay
Melting temperature (oC) NA
Target gene Luciferase gene
siRNA concentration 0.002 to 8.0 nM
Cell or Organism used HeLa cells
Transfection method Lipofectamine 2000
Duration after transfection 24 Hours
Article title Modulation of thermal stability can enhance the potency of siRNA
Reference20610434