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InterPro: IPR000796 Aspartate/other aminotransferase

Protein matchesHelp
UniProtKB
Matches:
1707 proteins
AccessionHelp IPR000796 Asp_trans
TypeHelp Family
SignaturesHelp
InterPro RelationshipsHelp
Contains IPR004838 Aminotransferases, class-I, pyridoxal-phosphate-binding site
IPR004839 Aminotransferase, class I/II
IPR015421 Pyridoxal phosphate-dependent transferase, major region, subdomain 1
GO Term annotationHelp
Process GO:0006520 cellular amino acid metabolic process
Function GO:0008483 transaminase activity
InterPro annotation
BioMart Logo Entry Details in BioMart
AbstractHelp

Aspartate aminotransferase is important for the metabolism of amino acids and Krebs-cycle related organic acids. In plants, it is involved in nitrogen metabolism and in aspects of carbon and energy metabolism. The enzyme catalyses the reaction:

L-aspartate + 2-oxoglutarate = oxaloacetate + L-glutamate

Aminotransferases share certain mechanistic features with other pyridoxal-phosphate-dependent enzymes, such as the covalent binding of the pyridoxal-phosphate group to a lysine residue [1]. This family includes some aromatic-amino-acid aminotransferases too.

Structural linksHelp
PDB - click here
SCOP: c.67.1.1
Database linksHelp
Enzyme: EC:2.6.1.1
Blocks: IPB000796

Taxonomic coverageHelp

Overlapping InterPro entriesHelp
IPR000796 Numbers of overlapping proteins Average numbers of overlapping amino acids

Example proteinsHelp
P05201 Aspartate aminotransferase, cytoplasmic

P17174 Aspartate aminotransferase, cytoplasmic

P23542 Aspartate aminotransferase, cytoplasmic

P46248 Aspartate aminotransferase, chloroplastic

Q22067 Probable aspartate aminotransferase, cytoplasmic

More proteins


Example Proteins Key


InterPro entry accession number/name and structure databases Colour code
IPR004838 Aminotransferases, class-I, pyridoxal-phosphate-binding site
IPR004839 Aminotransferase, class I/II
IPR015424 Pyridoxal phosphate-dependent transferase, major domain
IPR015422 Pyridoxal phosphate-dependent transferase, major region, subdomain 2
IPR015421 Pyridoxal phosphate-dependent transferase, major region, subdomain 1
IPR000796 Aspartate/other aminotransferase
SWISS-MODEL
PDB Chain
ModBase
CATH Domain
SCOP Domain

PublicationsHelp
1. Sung MH, Tanizawa K, Tanaka H, Kuramitsu S, Kagamiyama H, Hirotsu K, Okamoto A, Higuchi T, Soda K.
Thermostable aspartate aminotransferase from a thermophilic Bacillus species. Gene cloning, sequence determination, and preliminary x-ray characterization.
J. Biol. Chem. 266 2567-72 1991 [PubMed: 1990006]
http://intl.jbc.org/cgi/content/abstract/266/4/2567

Additional ReadingHelp
Islam MM, Goto M, Miyahara I, Ikushiro H, Hirotsu K, Hayashi H.
Binding of C5-dicarboxylic substrate to aspartate aminotransferase: implications for the conformational change at the transaldimination step.
Biochemistry 44 2005 8218-29 [PubMed: 15938611]
http://dx.doi.org/10.1021/bi050071g
Liu D, Pozharski E, Lepore BW, Fu M, Silverman RB, Petsko GA, Ringe D.
Inactivation of Escherichia coli L-aspartate aminotransferase by (S)-4-amino-4,5-dihydro-2-thiophenecarboxylic acid reveals "a tale of two mechanisms".
Biochemistry 46 2007 10517-27 [PubMed: 17713924]
http://dx.doi.org/10.1021/bi700663n
Chow MA, McElroy KE, Corbett KD, Berger JM, Kirsch JF.
Narrowing substrate specificity in a directly evolved enzyme: the A293D mutant of aspartate aminotransferase.
Biochemistry 43 2004 12780-7 [PubMed: 15461450]
http://dx.doi.org/10.1021/bi0487544
Hayashi H, Mizuguchi H, Miyahara I, Nakajima Y, Hirotsu K, Kagamiyama H.
Conformational change in aspartate aminotransferase on substrate binding induces strain in the catalytic group and enhances catalysis.
J. Biol. Chem. 278 2003 9481-8 [PubMed: 12488449]
http://dx.doi.org/10.1074/jbc.M209235200
Mizuguchi H, Hayashi H, Okada K, Miyahara I, Hirotsu K, Kagamiyama H.
Strain is more important than electrostatic interaction in controlling the pKa of the catalytic group in aspartate aminotransferase.
Biochemistry 40 2001 353-60 [PubMed: 11148029]
http://dx.doi.org/10.1021/bi001403e
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InterPro 23.1