ASPARTATE AMINOTRANSFERASE (E.C. 2.6.1.1) COMPLEXED WITH C5-PYRIDOXAL-5P-PHOSPHATEASPARTATE AMINOTRANSFERASE (E.C. 2.6.1.1) COMPLEXED WITH C5-PYRIDOXAL-5P-PHOSPHATE

Structural highlights

1cq7 is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Activity:Aspartate transaminase, with EC number 2.6.1.1
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Evolutionary Conservation

 

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Domain movement is sometimes essential for substrate recognition by an enzyme. X-ray crystallography of aminotransferase with a series of aliphatic substrates showed that the domain movement of aspartate aminotransferase was changed dramatically from an open to a closed form by the addition of only one CH(2) to the side chain of the C4 substrate CH(3)(CH(2))C((alpha))H(NH(3)(+))COO(-). These crystallographic results and reaction kinetics (Kawaguchi, S., Nobe, Y., Yasuoka, J., Wakamiya, T., Kusumoto, S., and Kuramitsu, S. (1997) J. Biochem. (Tokyo) 122, 55-63; Kawaguchi, S. and Kuramitsu, S. (1998) J. Biol. Chem. 273, 18353-18364) enabled us to estimate the free energy required for the domain movement.

Free energy requirement for domain movement of an enzyme.,Ishijima J, Nakai T, Kawaguchi S, Hirotsu K, Kuramitsu S J Biol Chem. 2000 Jun 23;275(25):18939-45. PMID:10858450[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Ishijima J, Nakai T, Kawaguchi S, Hirotsu K, Kuramitsu S. Free energy requirement for domain movement of an enzyme. J Biol Chem. 2000 Jun 23;275(25):18939-45. PMID:10858450

1cq7, resolution 2.40Å

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