Any multimeric complex connected to a microtubule.

Any microtubule that is part of a mitotic or meiotic spindle; anchored at one spindle pole.

Structure between the central and outer plaques of the spindle pole body.

saccharopine dehydrogenase (NADP+, L-lysine-forming) activity

Catalysis of the reaction: H2O + NADP+ + saccharopine = NADPH + 2-oxoglutarate + L-lysine.

One of three laminate structures that form the spindle pole body; the inner plaque is in the nucleus.

saccharopine dehydrogenase (NAD+, L-glutamate-forming) activity

Catalysis of the reaction: H2O + NAD+ + saccharopine = NADH + allysine + L-glutamate.

One of three laminate structures that form the spindle pole body; the central plaque is embedded in the nuclear envelope.

One of three laminate structures that form the spindle pole body; the outer plaque is in the cytoplasm.

Structure adjacent to the plaques of the spindle pole body.

A cytoskeletal structure composed of actin filaments and myosin that forms beneath the plasma membrane of many cells, including animal cells and yeast cells, in a plane perpendicular to the axis of the spindle; as the ring contracts it pulls the membrane inwards to divide the contents of the cytoplasm in cytokinesis.

Any of the spindle microtubules that come from each pole and overlap at the spindle midzone. This interdigitating structure consisting of antiparallel microtubules is responsible for pushing the poles of the spindle apart.

Catalysis of the hydrolysis of ester linkages within ribonucleic acids by creating internal breaks to yield 5'-phosphomonoesters.

Any of the spindle microtubules that attach to the kinetochores of chromosomes by their plus ends, and maneuver the chromosomes during mitotic or meiotic chromosome segregation.

endoribonuclease activity, producing other than 5'-phosphomonoesters

Catalysis of the hydrolysis of ester linkages within ribonucleic acids by creating internal breaks to yield 3'-phosphomonoesters.

That part of the cytoplasm that does not contain membranous or particulate subcellular components.