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SyngenisLabs Ltd
Glossary

Gapmer

An antisense oligo with a DNA core and modified wings, designed so RNase H cuts the target.

A gapmer is an antisense oligonucleotide built with a central window of unmodified DNA flanked by chemically modified wings. The DNA gap allows the enzyme RNase H to recognise the bound duplex and cut the target messenger RNA, while the wings protect the ends and increase binding strength.

Balancing the size of the gap against the modification of the wings is a central design decision for silencing ASOs.

Design with these concepts on Syngenis One

Our platform puts the chemistry behind these terms to work, from candidate design to synthesis ready oligo.