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Literature summary extracted from

  • Aertgeerts, K.; Ye, S.; Shi, L.; Prasad, S.G.; Witmer, D.; Chi, E.; Sang, B.C.; Wijnands, R.A.; Webb, D.R.; Swanson, R.V.
    N-linked glycosylation of dipeptidyl peptidase IV (CD26): effects on enzyme activity, homodimer formation, and adenosine deaminase binding (2004), Protein Sci., 13, 145-154.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

EC Number Cloned (Comment) Organism
3.4.14.5 expression of a soluble His-tagged wild-type enzyme and glycosylation mutant extracellular domains, which comprises extracellular domain amino acid residues 39-766 and are secreted to the medium, in Trichoplusia ni Hi5 and Spodoptera frugiperda Sf9 insect cells via baculovirus infection Homo sapiens
3.4.14.5 expression of wild-type enzyme and mutant enzymes in Sf9 insect cells and in Hi5 insect cells Homo sapiens

Protein Variants

EC Number Protein Variants Comment Organism
3.4.14.5 N150A site-directed mutagenesis, glycosylation site mutant, unaltered dimerization compared to the wild-type, 60% increased activity if expressed in Hi5 cells, unaltered activity if expressed in Sf9 cells Homo sapiens
3.4.14.5 N150A kcat/Km for mutant enzyme expressed in Sf9 insect cells is identical to of wild-type value for the substrate Ala-Pro-7-amido-4-trifluoromethylcoumarin and 110% of wild-type value for the substrate Gly-Pro-4-nitroanilide Homo sapiens
3.4.14.5 N219A site-directed mutagenesis, glycosylation site mutant, unaltered dimerization compared to the wild-type, increased binding to adenosine deaminase of the mutant if expressed in Sf9 cells, increased activity if expressed in Hi5 cells, slightly altered activity if expressed in Sf9 cells Homo sapiens
3.4.14.5 N219A kcat/Km for mutant enzyme expressed in Sf9 insect cells is 92% of wild-type value for the substrate Ala-Pro-7-amido-4-trifluoromethylcoumarin and 110% of wild-type value for the substrate Gly-Pro-4-nitroanilide Homo sapiens
3.4.14.5 N229A site-directed mutagenesis, glycosylation site mutant, unaltered dimerization compared to the wild-type, 90% increased activity if expressed in Hi5 cells, reduced activity if expressed in Sf9 cells Homo sapiens
3.4.14.5 N229A kcat/Km for mutant enzyme expressed in Sf9 insect cells is 70% of wild-type value for the substrate Ala-Pro-7-amido-4-trifluoromethylcoumarin and 73% of wild-type value for the substrate Gly-Pro-4-nitroanilide Homo sapiens
3.4.14.5 N281A site-directed mutagenesis, glycosylation site mutant, unaltered dimerization compared to the wild-type, 40% increased activity if expressed in Hi5 cells, reduced activity if expressed in Sf9 cells Homo sapiens
3.4.14.5 N281A kcat/Km for mutant enzyme expressed in Sf9 insect cells is 85% of wild-type value for the substrate Ala-Pro-7-amido-4-trifluoromethylcoumarin and 92% of wild-type value for the substrate Gly-Pro-4-nitroanilide Homo sapiens
3.4.14.5 N321A site-directed mutagenesis, glycosylation site mutant, unaltered dimerization compared to the wild-type, slightly increased binding to adenosine deaminase of the mutant if expressed in Sf9 cells, increased activity if expressed in Hi5 cells, reduced activity if expressed in Sf9 cells Homo sapiens
3.4.14.5 N321A kcat/Km for mutant enzyme expressed in Sf9 insect cells is 50% of wild-type value for the substrate Ala-Pro-7-amido-4-trifluoromethylcoumarin and 54% of wild-type value for the substrate Gly-Pro-4-nitroanilide Homo sapiens
3.4.14.5 N520A site-directed mutagenesis, glycosylation site mutant, unaltered dimerization compared to the wild-type, slightly increased binding to adenosine deaminase of the mutant if expressed in Sf9 cells Homo sapiens
3.4.14.5 N520A kcat/Km for mutant enzyme expressed in Sf9 insect cells is 68% of wild-type value for the substrate Ala-Pro-7-amido-4-trifluoromethylcoumarin and 80% of wild-type value for the substrate Gly-Pro-4-nitroanilide Homo sapiens
3.4.14.5 N685A site-directed mutagenesis, glycosylation site mutant, unaltered dimerization compared to the wild-type, slightly decreased binding to adenosine deaminase of the mutant if expressed in Hi5 cells Homo sapiens
3.4.14.5 N685A kcat/Km for mutant enzyme expressed in Sf9 insect cells is 110% of wild-type value for the substrate Ala-Pro-7-amido-4-trifluoromethylcoumarin and 120% of wild-type value for the substrate Gly-Pro-4-nitroanilide Homo sapiens
3.4.14.5 N85A site-directed mutagenesis, glycosylation site mutant, unaltered dimerization compared to the wild-type, slightly increased binding to adenosine deaminase of the mutant if expressed in Sf9 cells, increased activity if expressed in Hi5 cells, slightlyreduced activity if expressed in Sf9 cells Homo sapiens
3.4.14.5 N85A kcat/Km for mutant enzyme expressed in Sf9 insect cells is 85% of wild-type value for the substrate Ala-Pro-7-amido-4-trifluoromethylcoumarin and 92% of wild-type value for the substrate Gly-Pro-4-nitroanilide Homo sapiens
3.4.14.5 N92A site-directed mutagenesis, glycosylation site mutant, unaltered dimerization compared to the wild-type, slightly increased activity if expressed in Hi5 cells, unaltered activity if expressed in Sf9 cells Homo sapiens
3.4.14.5 N92A kcat/Km for mutant enzyme expressed in Sf9 insect cells is identical to of wild-type value for the substrate Ala-Pro-7-amido-4-trifluoromethylcoumarin and 110% of wild-type value for the substrate Gly-Pro-4-nitroanilide Homo sapiens

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.4.14.5 0.013
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N685A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.013
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N685A expressed in Sf9 cells Homo sapiens
3.4.14.5 0.014
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, wild-type soluble enzyme, mutant N92A, N150A, N229A, N281A, N321A and N520A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.014
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N150A expressed in Sf9 cells Homo sapiens
3.4.14.5 0.014
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N229A expressed in Sf9 cells Homo sapiens
3.4.14.5 0.014
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N281A expressed in Sf9 cells Homo sapiens
3.4.14.5 0.014
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N321A expressed in Sf9 cells Homo sapiens
3.4.14.5 0.014
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N520A expressed in Sf9 cells Homo sapiens
3.4.14.5 0.014
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N92A expressed in Sf9 cells Homo sapiens
3.4.14.5 0.014
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, wild-type enzyme expressed in Sf9 cells Homo sapiens
3.4.14.5 0.015
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N229A and N685A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.015
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N85A and N219A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.015
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N219A expressed in Sf9 cells Homo sapiens
3.4.14.5 0.015
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N85A expressed in Sf9 cells Homo sapiens
3.4.14.5 0.016
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, wild-type soluble enzyme and mutant N85A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.017
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N92A, N150A, and N520A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.018
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N321A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.019
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N219A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.02
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N281A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.131
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N520A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.138
-
Gly-Pro-4-nitroanilide pH 7.4, wild-type soluble enzyme, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.142
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N520A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.142
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N685A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.143
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N150A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.143
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N92A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.144
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N219A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.145
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N229A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.146
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N321A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.147
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N92A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.149
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N85A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.151
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N150A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.151
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N229A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.152
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N685A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.155
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N85A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.156
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N321A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.159
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N281A, expressed in Sf9 cells Homo sapiens
3.4.14.5 0.16
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N219A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.168
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N281A, expressed in Hi5 cells Homo sapiens
3.4.14.5 0.17
-
Gly-Pro-4-nitroanilide pH 7.4, wild-type soluble enzyme, expressed in Sf9 cells Homo sapiens

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.4.14.5 membrane type II transmembrane protein Homo sapiens 16020
-

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.4.14.5 95000
-
2 * 95000, SDS-PAGE Homo sapiens
3.4.14.5 220000
-
gel filtration Homo sapiens

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.4.14.5 additional information Homo sapiens binding of adenosine deaminase to the T-cell surface protects the T-cell from adenosine-mediated inhibition of proliferation ?
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.4.14.5 Homo sapiens
-
-
-

Posttranslational Modification

EC Number Posttranslational Modification Comment Organism
3.4.14.5 glycoprotein 9 N-glycosylation sites, glycosylation is no prerequisite for enzyme activity, dimerization or binding of adenosine deaminase, structural analysis Homo sapiens

Purification (Commentary)

EC Number Purification (Comment) Organism
3.4.14.5 recombinant soluble His-tagged wild-type and mutant extracellular enzyme domains from insect cell culture supernatant to homogeneity Homo sapiens

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.4.14.5 Ala-Pro-7-amido-4-methylcoumarin + H2O
-
Homo sapiens Ala-Pro + 7-amino-4-methylcoumarin
-
?
3.4.14.5 Ala-Pro-7-amido-4-trifluoromethylcoumarin + H2O
-
Homo sapiens Ala-Pro + 7-amino-4-trifluoromethylcoumarin
-
?
3.4.14.5 Gly-Pro-4-nitroanilide + H2O
-
Homo sapiens Gly-Pro + 4-nitroaniline
-
?
3.4.14.5 additional information enzyme binds adenosine deaminase at the highly glycosylated beta-propeller domain Homo sapiens ?
-
?
3.4.14.5 additional information binding of adenosine deaminase to the T-cell surface protects the T-cell from adenosine-mediated inhibition of proliferation Homo sapiens ?
-
?

Subunits

EC Number Subunits Comment Organism
3.4.14.5 dimer 2 * 95000, SDS-PAGE Homo sapiens

Synonyms

EC Number Synonyms Comment Organism
3.4.14.5 ADABP
-
Homo sapiens
3.4.14.5 adenosine deaminase binding protein
-
Homo sapiens
3.4.14.5 CD26
-
Homo sapiens
3.4.14.5 dipeptidyl peptidase IV
-
Homo sapiens
3.4.14.5 DPPIV
-
Homo sapiens

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
3.4.14.5 3 6 Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N520A, expressed in Hi5 cells Homo sapiens
3.4.14.5 9
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N321A, expressed in Sf9 cells Homo sapiens
3.4.14.5 9
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N321A expressed in Sf9 cells Homo sapiens
3.4.14.5 10
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N321A, expressed in Sf9 cells Homo sapiens
3.4.14.5 12
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N229A, expressed in Sf9 cells Homo sapiens
3.4.14.5 12
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N229A expressed in Sf9 cells Homo sapiens
3.4.14.5 13
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N229A, expressed in Sf9 cells Homo sapiens
3.4.14.5 13
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N520A, expressed in Sf9 cells Homo sapiens
3.4.14.5 13
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N520A expressed in Sf9 cells Homo sapiens
3.4.14.5 14
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N520A, expressed in Sf9 cells Homo sapiens
3.4.14.5 15
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N281A, expressed in Sf9 cells Homo sapiens
3.4.14.5 15
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N281A expressed in Sf9 cells Homo sapiens
3.4.14.5 16
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N85A, expressed in Sf9 cells Homo sapiens
3.4.14.5 16
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N85A, expressed in Sf9 cells Homo sapiens
3.4.14.5 16
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N85A expressed in Sf9 cells Homo sapiens
3.4.14.5 17
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N281A, expressed in Sf9 cells Homo sapiens
3.4.14.5 18
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, wild-type soluble enzyme, mutant N150A, N219A, and N92A, expressed in Sf9 cells Homo sapiens
3.4.14.5 18
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N150A expressed in Sf9 cells Homo sapiens
3.4.14.5 18
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N219A expressed in Sf9 cells Homo sapiens
3.4.14.5 18
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N92A expressed in Sf9 cells Homo sapiens
3.4.14.5 18
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, wild-type enzyme expressed in Sf9 cells Homo sapiens
3.4.14.5 19
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N685A, expressed in Sf9 cells Homo sapiens
3.4.14.5 19
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N92A, N150A, and N219A, expressed in Sf9 cells Homo sapiens
3.4.14.5 19
-
Ala-Pro-7-amido-4-trifluoromethylcoumarin pH 7.4, mutant enzyme N685A expressed in Sf9 cells Homo sapiens
3.4.14.5 20
-
Gly-Pro-4-nitroanilide pH 7.4, wild-type soluble enzyme, expressed in Sf9 cells Homo sapiens
3.4.14.5 21
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N685A, expressed in Sf9 cells Homo sapiens
3.4.14.5 23
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, wild-type soluble enzyme, expressed in Hi5 cells Homo sapiens
3.4.14.5 24
-
Gly-Pro-4-nitroanilide pH 7.4, wild-type soluble enzyme, expressed in Hi5 cells Homo sapiens
3.4.14.5 27
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N85A, expressed in Hi5 cells Homo sapiens
3.4.14.5 30
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N685A, expressed in Hi5 cells Homo sapiens
3.4.14.5 30
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N85A, expressed in Hi5 cells Homo sapiens
3.4.14.5 31
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N92A, expressed in Hi5 cells Homo sapiens
3.4.14.5 32
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N685A, expressed in Hi5 cells Homo sapiens
3.4.14.5 34
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N321A, expressed in Hi5 cells Homo sapiens
3.4.14.5 34
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N92A, expressed in Hi5 cells Homo sapiens
3.4.14.5 35
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N321A and N520A, expressed in Hi5 cells Homo sapiens
3.4.14.5 37
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N150A, expressed in Hi5 cells Homo sapiens
3.4.14.5 40
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N150A, expressed in Hi5 cells Homo sapiens
3.4.14.5 40
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N229A and N281A, expressed in Hi5 cells Homo sapiens
3.4.14.5 42
-
Ala-Pro-7-amido-4-methylcoumarin pH 7.4, mutant N219A, expressed in Hi5 cells Homo sapiens
3.4.14.5 43
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N229A and N281A, expressed in Hi5 cells Homo sapiens
3.4.14.5 45
-
Gly-Pro-4-nitroanilide pH 7.4, mutant N219A, expressed in Hi5 cells Homo sapiens

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.4.14.5 7.4
-
assay at Homo sapiens