Helicase, It may function with a particular polarity, preferring single-stranded DNA with a 3 ' end (3'-5' helicase) or with a 5' end ( 5 '-3' helicase).

#Id: 9051

#Unit 4. Cell Communication and Cell Signaling

#Id: 9052

#Unit 4. Cell Communication and Cell Signaling

#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.

#Id: 9054

#Unit 4. Cell Communication and Cell Signaling

#Id: 9055

#Unit 4. Cell Communication and Cell Signaling

#Id: 9056

#Unit 4. Cell Communication and Cell Signaling