F1 has nine subunits of five different types, with the composition α₃ β₃ ϒδε

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#Id: 6968

#Unit 8. Inheritance Biology

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#Id: 1541

#Unit 2. Cellular Organization

Kinesin-13 (End-Binding Proteins)

• Bind and curve the end of the tubulin protofilaments into the GDP-β-tubulin conformation

• Facilitate the removal of terminal tubulin dimers 

• Greatly enhancing the frequency of catastrophes

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#Id: 9290

#Unit 6. System Physiology – Plant

Ammonium uptake from the soil is carried by AMT/Rh family transporters

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#Id: 8614

#Unit 2. Cellular Organization

Two inhibitory phosphorylations on CDK play a critical role in controlling CDK activity:

Y15

T14

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#Id: 8764

#Unit 1. Molecules and their Interaction Relevant to Biology

Some thermostable proteins are stabilized by an increased size of the protein’s hydrophobic core, an increased size of the interface between its domains and/or subunits, and a more tightly packed core as evidenced by a reduced surface-to-volume ratio.