4168933
Polymerisation
- ACTIN FILAMENT
- STAGES
- 1.) Nucleation (rate determining step)
- G actin
- G actin
- 2.) Elongation (Growth Phase)
- Begins once oligomer formed (four actin come together)
- Begins once oligomer formed (four actin come together)
- 3.) Stable State (equilibrium)
- f actin formed
- f actin formed
- 1.) Nucleation (rate determining step)
- Needs lots of ATP
- ATP on actin faces - end of the filament
- ATP on actin faces - end of the filament
- Growth of the filament only
occurs on one side (+ side)
- STAGES
- MICROTUBULES
- Made of alpha and Beta tubulin
- To form filaments it uses GTP as an energy source
- The GTP within the between the alpha and
beta dimer holds the structure together
- STAGES
- 1.) Lag Phase
- 2.) Elongation
- 3.)Stable State
- 1.) Lag Phase
- Polarised
- Alpha at top, beta at bottom
- Alpha at top, beta at bottom
- Made of alpha and Beta tubulin
- INTERMEDIATE FILAMENTS
- TYPES
- Nuclear
- lining of envelope
- lining of envelope
- Vimentin- Like
- Epithiliel
- Hair and Nails
- Hair and Nails
- Axonal
- Axons
- Axons
- Nuclear
- STRUCTURE
- Unlike Actin and
Microtubules, are often
permanent structure
- FORMATION
- Not
Polarised
- Desmosomes join
filament of different cells
- TYPES
Anexos de mídia
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