1.4 Cell Structure and Function - Pt. 2 Flashcards
The most common pathways used by cells…
G-Protein Pathway
Acts as the attachment point for the Ligand. Found in plasma membrane. Will change shape upon attachment of the proper ligand…
G-Protein Linked Receptor…
Most important receptor protein in pathway cells…
- G-Protein Pathways
- Tyrosine-Kinase Pathways
- Intracellular Receptors
Serves as the attachment point for the ligand and will change shape upon the attachment of a proper ligand…
G-Protein Linked Receptor
Acts as a relay protein carrying the message to the appropriate location…
G-Protein
Turns on the G-Protein possibly due by the shape change occurred with the protein receptor…
Phosphorylation
Once activated the G-Protein then…
Travels to the appropriate enzyme or protein to phosphorylate it
Involved with growth/emergency repair most of the time…
Tyrosine-Kinase Protein
Has the ability to act like a catalyst for rapidly activating several relay proteins. (Structure = Function)…
Tyrosine-Kinase pathways
Receives hormones and steroids. These are lipids and travel into the cell by diffusion…
Intracellular Receptors
Usually the start of making mRNA within the nucleus…
Transcription Factors
Turns on process by phosphorylating the molecule. Amplifies the signal but can also control the reaction rate…
Protein Kinase Cascades
Turns off process by removing a phosphate ion from the molecule…
Protein Phosphate Cascade
Only needs small amounts of _____ to convey the message…
Ligand
