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TLS Online TPP Program

#Id: 1510

A microtubule is a hollow cylindrical structure built from 13 parallel protofilaments, each composed of αβ-tubulin heterodimers stacked head to tail and folded into a tube.


#Unit 2. Cellular Organization #Microtubules #Part B Pointers
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TLS Online TPP Program

#Id: 9051

#Unit 4. Cell Communication and Cell Signaling
TLS Online TPP Program

#Id: 9052

#Unit 4. Cell Communication and Cell Signaling
TLS Online TPP Program

#Id: 9053

#Unit 4. Cell Communication and Cell Signaling

Binding of cAMP by an R subunit of PKA occurs in a cooperative fashion; i.e., binding of the first cAMP molecule to CNB-B lowers the Kd for binding of the second cAMP to CNB-A.
TLS Online TPP Program

#Id: 9054

#Unit 4. Cell Communication and Cell Signaling

The activated β2-adrenergic receptor induces GDP-->GTP exchange on a stimulatory G protein (Gs).
TLS Online TPP Program

#Id: 9055

#Unit 4. Cell Communication and Cell Signaling
TLS Online TPP Program

#Id: 9056

#Unit 4. Cell Communication and Cell Signaling