Only when a correct base pair is formed are the 3’-OH of the primer and the a-phosphate of the incoming nucleoside triphosphate in the optimum position for catalysis to occur.

TLS Online TPP Program

#Id: 9619

#Unit 4. Cell Communication and Cell Signaling

HER2 (mouse Erb-B2), cannot bind any ligand, it can form a heterodimer with ligand-activated HER1, HER3, or HER4 (Erb-B1, 3, or 4)

TLS Online TPP Program

#Id: 8259

#Unit 1. Molecules and their Interaction Relevant to Biology

An induced dipole moment is a temporary condition during which a neutral nonpolar atom (i.e., Helium) undergo a separation of charges due to the environment.

TLS Online TPP Program

#Id: 3342

#Unit 6. System Physiology – Plant

Subunit c is a small (Mr 8,000), very hydrophobic polypeptide, consisting almost entirely of two transmembrane helices, with a small loop extending from the matrix side of the membrane

TLS Online TPP Program

#Id: 1931

#Unit 4. Cell Communication and Cell Signaling

When blood platelets are activated during a clotting reaction, they release high concentrations of ATP and Ca2+ along with serine/threonine kinases. Phosphorylated C3b is less susceptible to proteolytic degradation than its unphosphorylated form

TLS Online TPP Program

#Id: 7756

#Unit 1. Molecules and their Interaction Relevant to Biology

Fluorine (the most electronegative element) is assigned a value of 4.0, and values range down to cesium and francium which are the least electronegative at 0.7