Gpd proteins form a complex with sialidase.

<p>Streptavidine affinity purification of GpdC-His-Strep expressed from its natural promoter in a <i>ΔgpdC background</i>. (A) Detection by western blot of GpdC (anti-His antibody), GpdG (anti-GpdG) and Sialidase (anti-SiaC) in the elution fractions. (B) List of protein identified by Mass spectrometry in the elution fractions.