Allosteric effector Flashcards

1
Q

BPG acts as what

A

an allosteric effector

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2
Q

Binding of BPG acts to lower what

A

oxygen affinity to hemoglobin

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3
Q

BPG binds where in the B chains and does what

A

BPG binds in the cavity between the β chains, making electrostatic interactions with positively charged residues around the opening

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4
Q

BPG can only bind to what form

A

deoxyHb form the cavity in the oxyHb form is because the cavity in the oxyHb form is to small to accommodate BPG.

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5
Q

The higher the BPG in red blood cells the what

A

the more stable deoxyHb and decrease in O2 affinity

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6
Q

Sickle Cell Anemia

A

Is a genetic disorder caused by a single amino acid substitution (Glu6 to Val6) in each β-chain of hemoglobin.The change introduces hemoglobin. The change introduces a hydrophobic patch on the surface of hemoglobin that causes molecules to aggregate into bundles of fibres

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