Cell communication
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CELL COMMUNICATION - PowerPoint PPT Presentation

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CELL COMMUNICATION. Slide show modified from a PREZI by David Knuffke. KINASE: Protein that “phosphorylates” (adds a phosphate to) another molecule TYROSINE KINASES: Proteins that form dimers. Tyrosine amino acid residues are active in transfer of phosphates to relay proteins

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Cell communication

Slide show modified from a PREZI by David Knuffke

Cell communication

Cell communication

Calcium ions are another common 2 to) another moleculend messenger

Cell communication

  • Internal to) another moleculesignalling molecules released due to external “girst” signals. Trigger sub-response pathways

Cell communication

The l
The L to) another molecule

Amplification more from less

Cells amplify the message

Complication a branching network
COMPLICATION to) another moleculeA “Branching Network”

Simplicity leads to COMPLEXITY

  • S

More examples why cells communicate
MORE EXAMPLES to) another moleculeWhy cells communicate?

  • Wound healing

  • QUORUM SENSING in bacteria communication among microbes that triggers group response when population reaches certain density

  • APOPTOSIS-Programmed cell death

  • Yeast mating

Quorum sensing
QUORUM SENSING to) another molecule

Apoptosis cell suicide
APOPTOSIS to) another molecule“Cell suicide”

Why are “Death proteins“ present in inactive form?