Asparagine

One step from aspartate: the side-chain carboxyl becomes an amide

Route: Aspartate → Asparagine

Asparagine synthetase uses ATP to activate the side-chain carboxyl group of aspartate; it forms an adenylated intermediate. The nitrogen comes from glutamine, which becomes glutamate. The products are asparagine, glutamate, AMP and pyrophosphate. E. coli also has an enzyme, AsnA, that uses ammonium directly.

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Steps

StepEnzymeECInOut
1Asparagine synthetase6.3.5.4ATP, GlutamineAMP, PPᵢ, Glutamate

Enzyme names and EC numbers are those used on the interactive board. Checked against sources: see the claim table in the repository (tools/pathway_data/checks).