Tight junctions prevent the diffusion of: 

Macromolecules

Small water-soluble molecules

Ions

Membrane proteins 

Glycolipids

TLS Online TPP Program

#Id: 9022

#Unit 6. System Physiology – Plant

Trx proteins are characterized by a canonical disulfide active site consisting of Cys‐Gly‐Pro‐ Cys

TLS Online TPP Program

#Id: 8589

#Unit 2. Cellular Organization

Lamins are reversibly disassembled by phosphorylation during mitosis

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#Id: 5477

#Unit 7. System Physiology – Animal

Action potentials are propagated down the motoneuron, depolarize each adjacent region to threshold. Finally, the presynaptic terminal is depolarized, and this depolarization causes voltage-gated Ca2+ channels in the presynaptic membrane to open.

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#Id: 7145

#Unit 6. System Physiology – Plant

Brassinolide binding to the brassinosteroid receptor kinase

BRASSINOSTEROID-INSENSITIVE1 (BRI1) on the plasma membrane triggers a phosphorylation cascade that causes a repressor protein, BRASSINOSTEROID-INSENSITIVE2

(BIN2), to become inactivated. This results in activation of the transcription factors BRI1-EMS SUPPRESSOR1 (BES1) and BRASSINAZOLE-RESISTANT1 (BZR1) and subsequent gene expression

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#Id: 2904

#Unit 3. Fundamental Processes

DnaA-ATP binds cooperatively to form a helical central core around which oriC DNA is wrapped.