DnaA is an ATP-binding protein.

The first stage in initiation is binding of the DnaA-ATP protein complex to the fully methylated oriC sequence.

This takes place in association with the inner membrane. DnaA is in the active form only when bound to ATP.

DnaA has intrinsic ATPase activity that hydrolyzes ATP to ADP and thus inactivates itself when the initiation stage ends.

TLS Online TPP Program

#Id: 5874

#Unit 10. Ecological Principles

The greenhouse effect is caused by the insulating effect of atmospheric carbon dioxide.

TLS Online TPP Program

#Id: 5875

#Unit 10. Ecological Principles

Relative absorption per ppm of increase 

CO2= 1

Methane= 32

Nitrous oxide= 150

Chlorofluorocarbons= >10000

TLS Online TPP Program

#Id: 5876

#Unit 10. Ecological Principles

Atmospheric concentration (ppm)

CO2= 381

Methane= 1.75

Nitrous oxide= .315

Chlorofluorocarbons= 0.0005

TLS Online TPP Program

#Id: 5877

#Unit 10. Ecological Principles

Contribution to global warming

CO2= 73%

Methane= 7%

Nitrous oxide= 19%

Chlorofluorocarbons= 1%

TLS Online TPP Program

#Id: 5878

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 5879

#Unit 10. Ecological Principles