Download - Biology Screencast- Cell Division
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7/25/2019 Biology Screencast- Cell Division
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Cell
Division(Cyclic Dependent Kinase)
Ruha Reddy, Emily Ren, NithyaSanthosh, Vijay Srivastava,Alex Wu
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Intro to Cell Control
- Mature (ex. Kidney and Nerve Cells) vs. Constantly renewed cells
tissue lining intestines)
- Response to Environmental Conditions
- Normal human liver cells vs.amaged liver- !nicellular organisms" #acteria$ archaea$ yeasts divide %aster i% the environment is rich with
- Cancer - de%ects in cell division control & uncontrolled$ cancerous
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Overview of !"# itosis Re$u
- Maturation-promoting-%actor (M') - induces mitosis in all euary
- *ow +t ,ors"- Contains distinct units" Protein Kinaseand Cyclin (present in uctuating con- Cyclin is regulatory protein activates 'rotein Kinase (Cd) cataly/es phos
other proteins induce mitosis- Negative eed#ac - M' activates an
en/yme complex that triggers its owndestruction
- More cyclin & more cell division & morecells
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!" % Cy&lin 'e(endent )inase
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*umor Su((ressor +ene# (-
- 0umor suppressor gene" inhi#its cell division #1c proteins that are
prevent uncontrolled cell growth
- 2ctivates other genes"
- 2ctivatep21gene" halts cell cycle #y #inding to Cds allows time %or the cell to repair N2- 2ctivate expression o% a group o% miRN2s inhi#it the cell cycle- 2ctivates 3suicide4 genes protein productions #ring a#out apoptosiswhen N2 damage is irrepa
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Proto-oncogene
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Con&lusion