The reverse transcriptase becomes covalently linked to a short 3- or 4-nucleotide primer.

It is covalently linked to these phycobiliproteins by a thioether bond.

The fluorophore is covalently linked to proteins or antibodies for use in research applications.

Each 5' end is covalently linked to a terminal protein, which is essential in the replication process.

The second method is to covalently link DNA and protein.

In Gram positive bacteria, the pilin subunits are covalently linked.

It is covalently linked to Lys216 in the chromophore by Schiff base action.

Proteins marked for degradation are covalently linked to ubiquitin.

At such temperatures the solvent expands much more rapidly than the polymer, whose segments are covalently linked.

In the species with a single genome, at the 5' end a protein is covalently linked (the Vg protein).