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Information on EC 2.6.1.39 - 2-aminoadipate transaminase and Organism(s) Homo sapiens and UniProt Accession Q8N5Z0

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EC Tree
     2 Transferases
         2.6 Transferring nitrogenous groups
             2.6.1 Transaminases
                2.6.1.39 2-aminoadipate transaminase
IUBMB Comments
A pyridoxal-phosphate protein.
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This record set is specific for:
Homo sapiens
UNIPROT: Q8N5Z0
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Word Map
The taxonomic range for the selected organisms is: Homo sapiens
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota, Archaea
Synonyms
alpha-aminoadipate aminotransferase, aaa-at, 2-aminoadipate aminotransferase, glutamate-alpha-ketoadipate transaminase, kat ii/aadat, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
aminoadipate aminotransferase
-
aminoadipate aminotransferase/kynurenine aminotransferase II
-
KAT II/AADAT
bifunctional enzyme with kynurenine aminotransferase activity and aminoadipate aminotransferase function
kynurenine aminotransferase II
-
2-aminoadipate aminotransferase
-
-
-
-
2-aminoadipic aminotransferase
-
-
-
-
alpha-aminoadipate aminotransferase
-
-
-
-
glutamate-alpha-ketoadipate transaminase
-
-
-
-
glutamic-ketoadipic transaminase
-
-
-
-
additional information
KAT II is identical to AADAT (aminoadipate aminotransferase)
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
amino group transfer
-
-
-
-
SYSTEMATIC NAME
IUBMB Comments
L-2-aminoadipate:2-oxoglutarate aminotransferase
A pyridoxal-phosphate protein.
CAS REGISTRY NUMBER
COMMENTARY hide
9033-00-5
-
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
L-2-aminoadipate + 2-oxoglutarate
2-oxoadipate + L-glutamate
show the reaction diagram
kynurenine + 2-oxoglutarate
kynurenic acid + L-glutamate
show the reaction diagram
-
-
-
-
ir
L-2-aminoadipate + 2-oxoglutarate
2-oxoadipate + L-glutamate
show the reaction diagram
L-tryptophan + 2-oxoglutarate
3-indole-2-oxopropanoate + L-glutamate
show the reaction diagram
-
-
-
-
?
additional information
?
-
-
2 isoenzymes, AadAT-I and AadAT-II, isoenzyme AadAT-II shows additional activity with tryptophan or kynurenine-2-oxoglutarate reaction, only slight activity with asparagine, alanine, arginine, ornithine, isoleucine, valine, leucine, lysine, serine, threonine, phenylalanine, tyrosine, histidine, glutamine, methionine or aspartate with 2-oxoglutarate
-
-
?
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
L-2-aminoadipate + 2-oxoglutarate
2-oxoadipate + L-glutamate
show the reaction diagram
COFACTOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
pyridoxal 5'-phosphate
-
KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
1 - 2.5
2-oxoadipate
1.1 - 3.2
2-oxoglutarate
1.4
glutamate
-
pH 8.0, 37°C
0.25 - 20
L-2-aminoadipate
12.5
L-glutamate
-
pH 8.0, 37°C, isoenzyme AadAT-II
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.77
-
isoenzyme AadAT-I
10.68
-
isoenzyme AadAT-II
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
9 - 9.5
-
isoenzyme AadAT-II
9.5
-
isoenzyme AadAT-I
pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY hide
GeneOntology No.
LITERATURE
SOURCE
-
isoenzyme AadAT-I
Manually annotated by BRENDA team
-
isoenzyme AadAT-II
Manually annotated by BRENDA team
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
AADAT_HUMAN
425
0
47352
Swiss-Prot
Mitochondrion (Reliability: 3)
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
104000
-
isoenzyme AadAT-I, sucrose density gradient centrifugation
46000
-
2 * 46000, SDS-PAGE
50800
cDNA analysis
98000
-
isoenzyme AadAT-II, sucrose density gradient centrifugation
SUBUNIT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
dimer
-
2 * 46000, SDS-PAGE
CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
pH STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
9 - 9.5
-
isoenzyme AadAT-I, sensitive to pH changes, activity is quickly lost at a higher pH, isoenzyme AadAT-II is less sensitive to pH changes
639983
PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
2 isoenzymes, AadAT-I and AadAT-II
-
CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
gene AADAT sequenced
APPLICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
pharmacology
L-alpha-aminoadipate is a component of the precursor to penicillin and cephalosporin
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Okuno, E.; Tsujimoto, M.; Nakamura, M.; Kido, R.
2-Aminoadipate-2-oxoglutarate aminotransferase isoenzymes in human liver: a plausible physiological role in lysine and tryptophan metabolism
Enzyme Protein
47
136-148
1993
Homo sapiens
Manually annotated by BRENDA team
Goh, D.L.; Patel, A.; Thomas, G.H.; Salomons, G.S.; Schor, D.S.; Jakobs, C.; Geraghty, M.T.
Characterization of the human gene encoding alpha-aminoadipate aminotransferase (AADAT)
Mol. Genet. Metab.
76
172-180
2002
Homo sapiens, Homo sapiens (Q8N5Z0)
Manually annotated by BRENDA team
Han, Q.; Cai, T.; Tagle, D.A.; Robinson, H.; Li, J.
Substrate specificity and structure of human aminoadipate aminotransferase/kynurenine aminotransferase II
Biosci. Rep.
28
205-215
2008
Homo sapiens (Q8N5Z0), Homo sapiens
Manually annotated by BRENDA team
Han, Q.; Cai, T.; Tagle, D.A.; Li, J.
Structure, expression, and function of kynurenine aminotransferases in human and rodent brains
Cell. Mol. Life Sci.
67
353-368
2010
Homo sapiens (Q8N5Z0), Mus musculus, Rattus norvegicus
Manually annotated by BRENDA team