A heterodimer consisting of alpha and beta subunits that binds to and caps the barbed ends of actin filaments, thereby regulating the polymerization of actin monomers but not severing actin filaments.

Any complex that includes a dimer of molecules from the kinesin superfamily, a group of related proteins that contain an extended region of predicted alpha-helical coiled coil in the main chain that likely produces dimerization. The native complexes of several kinesin family members have also been shown to contain additional peptides, often designated light chains as all of the noncatalytic subunits that are currently known are smaller than the chain that contains the motor unit. Kinesin complexes generally possess a force-generating enzymatic activity, or motor, which converts the free energy of the gamma phosphate bond of ATP into mechanical work.

Any complex that includes a dimer of molecules from the kinesin superfamily and any associated proteins, and moves towards the minus end of a microtubule.

Any complex that includes a dimer of molecules from the kinesin superfamily and any associated proteins, and moves towards the plus end of a microtubule.

Any process that stops, prevents, or reduces the frequency, rate or extent of actin polymerization.

Any process that modulates the frequency, rate or extent of the assembly of intermediate filaments by the addition of monomers to a filament.

OBSOLETE. Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the breakdown of cGMP.

OBSOLETE. Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the breakdown of cGMP.

Any process that controls the length of actin filaments in a cell.

Any process that modulates the frequency, rate or extent of the assembly or disassembly of actin filaments by the addition or removal of actin monomers from a filament.

Any process that stops, prevents, or reduces the frequency, rate or extent of actin depolymerization.

Enables the transfer of adenine, 6-aminopurine, from one side of a membrane to the other.

Enables the transfer of guanine, 2-amino-6-hydroxypurine, from one side of a membrane to the other.

Any microtubule in the nucleus of a cell.

A type of intermediate filament found in the core of neuronal axons. Neurofilaments are heteropolymers composed of three type IV polypeptides: NF-L, NF-M, and NF-H (for low, middle, and high molecular weight). Neurofilaments are responsible for the radial growth of an axon and determine axonal diameter.

A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells. The filaments, comprising polymerized globular actin molecules, appear as flexible structures with a diameter of 5-9 nm. They are organized into a variety of linear bundles, two-dimensional networks, and three dimensional gels. In the cytoskeleton they are most highly concentrated in the cortex of the cell just beneath the plasma membrane.

Enables directed movement of methylammonium, CH3NH2, from one side of a membrane to the other.