Term
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Definition
| each atom leaves the bond as a radical, carrying one unpaired electron |
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Term
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Definition
| more common than homolytic cleavage; one atom retains both bonding electrons |
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Term
| What is the complement to a nucleophile in biochemical reactions? |
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Definition
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Term
| What bond formation is the goal of an aldol condensation? |
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Definition
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Term
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Definition
| the carbanion is stabilized by the carbonyl of an adjacent thioester; ex) the citric acid cycle |
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Term
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Definition
| the large family of enzymes that catalyze phosphoryl group transfers with ATP as donor |
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Term
| phosphorylation potential |
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Definition
| the actual free energy of hydrolysis of ATP under intracellular conditions |
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Term
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Definition
| a sulfur atom replaces the usual oxygen in the ester bond; have large, negative, standard free energies of hydrolysis |
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Term
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Definition
| nucleophilic attacks at the alpha position of ATP which displace PPi & transfer adenylate as an adenylyl group |
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Term
| inorganic pyrophosphatase |
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Definition
| the ubiquitous enzyme which hydrolyzes the PPi formed as a byproduct of the adenylylation to two Pi |
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Term
| Is nucleoside diphosphate kinase found in all cells? |
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Definition
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Term
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Definition
| lowers the ADP concentration & at the same time replenishes ATP during period of intense demand for ATP |
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Term
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Definition
| an enzyme which catalyzes the reversible synthesis of GTP from polyphosphate & GDP |
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