From Wikipedia, the free encyclopedia
cyclohexadienyl dehydrogenase
Identifiers
EC no. 1.3.1.43
CAS no. 64295-75-6
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
Search
PMC articles
PubMed articles
NCBI proteins

In enzymology, an arogenate dehydrogenase ( EC 1.3.1.43) is an enzyme that catalyzes the chemical reaction

L-arogenate + NAD+ L-tyrosine + NADH + CO2

Thus, the two substrates of this enzyme are L-arogenate and NAD+, whereas its 3 products are L-tyrosine, NADH, and CO2.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is L-arogenate:NAD+ oxidoreductase (decarboxylating). Other names in common use include arogenic dehydrogenase (ambiguous), cyclohexadienyl dehydrogenase, pretyrosine dehydrogenase (ambiguous), and L-arogenate:NAD+ oxidoreductase. This enzyme participates in phenylalanine, tyrosine and tryptophan biosynthesis and novobiocin biosynthesis.

Structural studies

As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 2F1K.

References

  • Stenmark SL, Pierson DL, Jensen RA, Glover GI (1974). "Blue-green bacteria synthesise L-tyrosine by the pretyrosine pathway". Nature. 247 (439): 290–2. Bibcode: 1974Natur.247..290S. doi: 10.1038/247290a0. PMID  4206476. S2CID  4200115.
  • Byng G, Whitaker R, Flick C, Jensen RA (1981). "Enzymology of L-tyrosine biosynthesis in corn (Zea mays)". Phytochemistry. 20 (6): 1289–1292. Bibcode: 1981PChem..20.1289B. doi: 10.1016/0031-9422(81)80023-4.
  • Mayer E, Waldner-Sander S, Keller B, Keller E, Lingens F (1985). "Purification of arogenate dehydrogenase from Phenylobacterium immobile". FEBS Lett. 179 (2): 208–12. Bibcode: 1985FEBSL.179..208M. doi: 10.1016/0014-5793(85)80519-6. PMID  3967752. S2CID  35594546.
  • Lingens F, Keller E, Keller B (1987). "Arogenate dehydrogenase from Phenylobacterium immobile". Metabolism of Aromatic Amino Acids and Amines. Methods in Enzymology. Vol. 142. pp. 513–518. doi: 10.1016/S0076-6879(87)42064-8. ISBN  978-0-12-182042-8.
  • Zamir LO, Tiberio R, Devor KA, Sauriol F, Ahmad S, Jensen RA (1988). "Structure of D-prephenyllactate. A carboxycyclohexadienyl metabolite from Neurospora crassa". J. Biol. Chem. 263 (33): 17284–90. doi: 10.1016/S0021-9258(19)77833-8. PMID  2972718.


From Wikipedia, the free encyclopedia
cyclohexadienyl dehydrogenase
Identifiers
EC no. 1.3.1.43
CAS no. 64295-75-6
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
Search
PMC articles
PubMed articles
NCBI proteins

In enzymology, an arogenate dehydrogenase ( EC 1.3.1.43) is an enzyme that catalyzes the chemical reaction

L-arogenate + NAD+ L-tyrosine + NADH + CO2

Thus, the two substrates of this enzyme are L-arogenate and NAD+, whereas its 3 products are L-tyrosine, NADH, and CO2.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is L-arogenate:NAD+ oxidoreductase (decarboxylating). Other names in common use include arogenic dehydrogenase (ambiguous), cyclohexadienyl dehydrogenase, pretyrosine dehydrogenase (ambiguous), and L-arogenate:NAD+ oxidoreductase. This enzyme participates in phenylalanine, tyrosine and tryptophan biosynthesis and novobiocin biosynthesis.

Structural studies

As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 2F1K.

References

  • Stenmark SL, Pierson DL, Jensen RA, Glover GI (1974). "Blue-green bacteria synthesise L-tyrosine by the pretyrosine pathway". Nature. 247 (439): 290–2. Bibcode: 1974Natur.247..290S. doi: 10.1038/247290a0. PMID  4206476. S2CID  4200115.
  • Byng G, Whitaker R, Flick C, Jensen RA (1981). "Enzymology of L-tyrosine biosynthesis in corn (Zea mays)". Phytochemistry. 20 (6): 1289–1292. Bibcode: 1981PChem..20.1289B. doi: 10.1016/0031-9422(81)80023-4.
  • Mayer E, Waldner-Sander S, Keller B, Keller E, Lingens F (1985). "Purification of arogenate dehydrogenase from Phenylobacterium immobile". FEBS Lett. 179 (2): 208–12. Bibcode: 1985FEBSL.179..208M. doi: 10.1016/0014-5793(85)80519-6. PMID  3967752. S2CID  35594546.
  • Lingens F, Keller E, Keller B (1987). "Arogenate dehydrogenase from Phenylobacterium immobile". Metabolism of Aromatic Amino Acids and Amines. Methods in Enzymology. Vol. 142. pp. 513–518. doi: 10.1016/S0076-6879(87)42064-8. ISBN  978-0-12-182042-8.
  • Zamir LO, Tiberio R, Devor KA, Sauriol F, Ahmad S, Jensen RA (1988). "Structure of D-prephenyllactate. A carboxycyclohexadienyl metabolite from Neurospora crassa". J. Biol. Chem. 263 (33): 17284–90. doi: 10.1016/S0021-9258(19)77833-8. PMID  2972718.



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