Toll activation activates Tube and Pelle, which phosphorylate the Cactus protein. Cactus is degraded, releasing it from Dorsal.

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#Id: 781

#Unit 3. Fundamental Processes

Intrinsic terminators—

1. Inverted Repeat on DNA 

2. Dyad Symmetry

3. Forms GC–rich hairpin 

4. Base of hairpin 7 U residues (T residues in the DNA) 

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#Id: 3294

#Unit 6. System Physiology – Plant

Ubiquinone (Q) is reduced by four ways;

a. By the oxidation of NADH in complex I
b. Electrons from succinate pass through a flavoprotein with the cofactor FAD and several Fe-S
centers (in Complex II) on the way to Q
c. Glycerol 3-phosphate donates electrons to a flavoprotein (glycerol 3-phosphate dehydrogenase)
on the outer face of the inner mitochondrial membrane, from which they pass to Q.
d. Acyl-CoA dehydrogenase (the first enzyme of oxidation) transfers electrons to electron-
transferring flavoprotein (ETF), from which they pass to Q via ETF

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#Id: 7822

#Unit 10. Ecological Principles

Glycoproteins can permit some invertebrates to withstand temperatures as low as –18°C without freezing. 

Antarctic fish also have glycoproteins in their blood and some species accumulate sodium, potassium, or chloride ions or urea, all of which lower the blood freezing point.

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#Id: 10353

#Unit 4. Cell Communication and Cell Signaling

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#Id: 9708

#Unit 4. Cell Communication and Cell Signaling

Ste5 acts as a scaffold for assembling other components in the cascade Ste11, Ste7, and Fus3.