Erythro-3-hydroxyaspartate ammonia-lyase

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erythro-3-hydroxyaspartate ammonia-lyase
Identifiers
EC no. 4.3.1.20
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The enzyme erythro-3-hydroxyaspartate ammonia-lyase (EC 4.3.1.20) catalyzes the chemical reaction

erythro-3-hydroxy-L-aspartate oxaloacetate + NH3

This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. The systematic name of this enzyme class is erythro-3-hydroxy-L-aspartate ammonia-lyase (oxaloacetate-forming). Other names in common use include erythro-β-hydroxyaspartate dehydratase, erythro-3-hydroxyaspartate dehydratase, erythro-3-hydroxy-Ls-aspartate hydro-lyase (deaminating); erythro-3-hydroxy-Ls-aspartate ammonia-lyase. It employs one cofactor, pyridoxal phosphate.

Related Research Articles

The urea cycle (also known as the ornithine cycle) is a cycle of biochemical reactions that produces urea (NH2)2CO from ammonia (NH3). Animals that use this cycle, mainly amphibians and mammals, are called ureotelic.

<span class="mw-page-title-main">Amino acid synthesis</span> The set of biochemical processes by which amino acids are produced

Amino acid synthesis is the set of biochemical processes by which the amino acids are produced. The substrates for these processes are various compounds in the organism's diet or growth media. Not all organisms are able to synthesize all amino acids. For example, humans can synthesize 11 of the 20 standard amino acids. These 11 are called the non-essential amino acids).

<span class="mw-page-title-main">Serine dehydratase</span>

Serine dehydratase or L-serine ammonia lyase (SDH) is in the β-family of pyridoxal phosphate-dependent (PLP) enzymes. SDH is found widely in nature, but its structural and properties vary among species. SDH is found in yeast, bacteria, and the cytoplasm of mammalian hepatocytes. SDH catalyzes is the deamination of L-serine to yield pyruvate, with the release of ammonia.

<span class="mw-page-title-main">Aspartate ammonia-lyase</span>

The enzyme aspartate ammonia-lyase (EC 4.3.1.1) catalyzes the chemical reaction

The enzyme D-serine ammonia-lyase (EC 4.3.1.18), with systematic name D-serine ammonia-lyase (pyruvate-forming), catalyzes the chemical reaction

<span class="mw-page-title-main">L-serine ammonia-lyase</span>

The enzyme L-serine ammonia-lyase (EC 4.3.1.17) catalyzes the chemical reaction

The enzyme threo-3-hydroxyaspartate ammonia-lyase (EC 4.3.1.16) is an enzyme that catalyzes the chemical reaction

The enzyme L-erythro-3-hydroxyaspartate aldolase catalyzes the chemical reaction

<span class="mw-page-title-main">Dihydroneopterin aldolase</span>

The enzyme dihydroneopterin aldolase catalyzes the chemical reaction

The enzyme ATP-dependent NAD(P)H-hydrate dehydratase catalyzes the chemical reactions

The enzyme D(−)-tartrate dehydratase (EC 4.2.1.81) catalyzes the chemical reaction

<span class="mw-page-title-main">Imidazoleglycerol-phosphate dehydratase</span>

The enzyme imidazoleglycerol-phosphate dehydratase (EC 4.2.1.19) catalyzes the chemical reaction

The enzyme L(+)-tartrate dehydratase (EC 4.2.1.32) catalyzes the chemical reaction

<span class="mw-page-title-main">Mannuronate-specific alginate lyase</span>

The enzyme mannuronate-specific alginate lyase catalyzes the degradation of alginate into various monosaccharide and polysaccharide products:

The enzyme trans-L-3-hydroxyproline dehydratase (EC 4.2.1.77) catalyzes the chemical reaction

3-hydroxy-D-aspartate aldolase is an enzyme with systematic name 3-hydroxy-D-aspartate glyoxylate-lyase (glycine-forming). This enzyme catalyses the following chemical reaction

ADP-dependent NAD(P)H-hydrate dehydratase is an enzyme with systematic name (6S)-6β-hydroxy-1,4,5,6-tetrahydronicotinamide-adenine-dinucleotide hydro-lyase . This enzyme catalyses the following chemical reaction

threo-3-Hydroxy-D-aspartate ammonia-lyase (EC 4.3.1.27, D-threo-3-hydroxyaspartate dehydratase) is an enzyme with systematic name threo-3-hydroxy-D-aspartate ammonia-lyase (oxaloacetate-forming). This enzyme catalyses the following chemical reaction

<span class="mw-page-title-main">Dihydrodipicolinate synthase</span> Class of enzymes

4-Hydroxy-tetrahydrodipicolinate synthase (EC 4.3.3.7, dihydrodipicolinate synthase, dihydropicolinate synthetase, dihydrodipicolinic acid synthase, L-aspartate-4-semialdehyde hydro-lyase (adding pyruvate and cyclizing), dapA (gene)) is an enzyme with the systematic name L-aspartate-4-semialdehyde hydro-lyase (adding pyruvate and cyclizing; (4S)-4-hydroxy-2,3,4,5-tetrahydro-(2S)-dipicolinate-forming). This enzyme catalyses the following chemical reaction

References


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