Septin ring

A septin ring forms during cell division. The collar-shaped structure forms along the axis where the cell splits and is composed of septins and associated proteins .The formation has been seen in the budding of fungal cells such as yeast, the cytokinesis of animal cells, within the hyphae of filamentous fungi, and at pseudohyphal projections. In yeast cells, the septin ring serves as a "dock" and proteins bind to it in an asymmetrical fashion. The functions of the septin structure are not fully understood and research is ongoing.