cell pole

MinE forms a ring near each cell pole.

V. cholerae is facultatively anaerobic and has a flagellum at one cell pole.

In vivo observations show that the oscillation of Min proteins between cell poles occurs approximately every 50 seconds.

Bacillus subtilis has been shown to have static concentrations of MinC and MinD at the cell poles.

Some studies have suggested that cohesion aids in aligning the kinetochores during mitosis by forcing the kinetochores to face opposite cell poles.

In the anaphase of mitosis, the broken chromosomes formed a chromatid bridge, which was broken when the chromatids moved towards the cell poles.

These are small nuclei containing one chromosome or part of a chromosome which did not get to one of the cell poles during cell division.

One daughter is a mobile "swarmer" cell that has a single flagellum at one cell pole that provides swimming motility for chemotaxis.

MinD localizes to the membrane only at cell poles and contains an ATPase and an ATP-binding domain.

During cytokinesis, MHCK-A displays weak enrichment at the cell poles, while MHCK-B displays a mostly diffuse localization.

Evidence of this polarity is found in the fact that clathrin is present in the ventricular cell pole and virtually absent in the basal cell pole.

Lophotrichous - A tuft of flagella found at one cell pole The bacterial flagellum consists of three basic components: a whip-like filament, a motor complex, and a hook that connects them.

The species Rhodocyclus purpureus also deviates from the other known members of the family (including other Rhodocyclus species) in its ring-shaped cell form, which brings the two cell poles close to each other and has inspired the genus name.

In this model, microtubule organizing centers are localized to the cell poles, their separation driven by microtubule polymerization and 'sliding' of antiparallel spindle microtubules with respect to one another at the spindle midzone mediated by bipolar, plus-end-directed kinesins.

Depolymerization of microtubules generates tension at kinetochores; bipolar attachment of sister kinetochores to microtubules emanating from opposite cell poles couples opposing tension forces, aligning chromosomes at the cell equator and poising them for segregation to daughter cells.

In a properly formed mitotic spindle, bi-oriented chromosomes are aligned along the equator of the cell with spindle microtubules oriented roughly perpendicular to the chromosomes, their plus-ends embedded in kinetochores and their minus-ends anchored at the cell poles.