Peptide name : L-amino-acid oxidase (LAAO; LAO; Reptiles, animals)

Source/Organism : Common viper

Linear/Cyclic : Not found

Chirality : Not found

Peptide length: 88

C-terminal modification: Not found

N-terminal modification : Not found

Non-natural peptide information: None

Assay type : Not specified

Assay time : Not found

Activity : Not found

Cell line : Not found

Cancer type : Not found

Other activity : Not found

Amino acid composition bar chart :

Molecular mass : 10294.4043 Dalton

Aliphatic index : 0.654

Instability index : 49.05

Hydrophobicity (GRAVY) : -0.862

Isoelectric point : 5.099

Charge (pH 7) : -4.9307

Aromaticity : 0.113

Molar extinction coefficient (cysteine, cystine): (12950, 12950)

Hydrophobic/hydrophilic ratio : 0.69230769

hydrophobic moment : 0.4475

Missing amino acid : None

Most occurring amino acid : E

Most occurring amino acid frequency : 10

Least occurring amino acid : C

Least occurring amino acid frequency : 1

Secondary structure fraction (Helix, Turn, Sheet): (0.3, 0.2, 0.3)

SMILES Notation: CC[C@H](C)[C@H](NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCCNC(=N)N)NC(=O)[C@H](Cc1ccccc1)NC(=O)[C@H](CS)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H]1CCCN1C(=O)[C@H](CC(N)=O)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CC(=O)O)NC(=O)[C@H](C)N)C(=O)N[C@@H](C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(N)=O)C(=O)NCC(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@H](C(=O)N[C@@H](CO)C(=O)N[C@@H](CC(N)=O)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](Cc1c[nH]cn1)C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N1CCC[C@H]1C(=O)N[C@H](C(=O)N[C@@H](CCCCN)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CO)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N1CCC[C@H]1C(=O)N[C@H](C(=O)N[C@@H](CO)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](Cc1c[nH]cn1)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(=O)N[C@@H](CCSC)C(=O)N[C@H](C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@H](C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](C)C(=O)NCC(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N[C@H](C(=O)N[C@@H](C)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](C)C(=O)N[C@@H](Cc1c[nH]cn1)C(=O)NCC(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(=O)N[C@H](C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CO)C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CCCCN)C(=O)O)[C@@H](C)CC)[C@@H](C)O)[C@@H](C)CC)[C@@H](C)O)[C@@H](C)CC)[C@@H](C)CC)[C@@H](C)O)C(C)C)C(C)C)[C@@H](C)CC)[C@@H](C)O

1 : Samel M, et al. Isolation and characterization of an apoptotic and platelet aggregation inhibiting L-amino acid oxidase from Vipera berus berus (common viper) venom. Biochim Biophys Acta. 2006; 1764:707-14. doi: 10.1016/j.bbapap.2006.01.021

Paper title : Isolation and characterization of an apoptotic and platelet aggregation inhibiting L-amino acid oxidase from Vipera berus berus (common viper) venom.

Doi : https://doi.org/10.1016/j.bbapap.2006.01.021

Abstract : An L-amino acid oxidase was isolated from the venom of the common viper Vipera berus berus by a three-step procedure combining gel filtration, ion exchange and hydrophobic chromatography. The enzyme is a non-covalently bound homodimer with a monomeric molecular mass of 57.7 kDa. The N-terminal amino acid sequence and the internal peptide sequences show close structural homology with other snake venom L-amino acid oxidases. The purified protein catalyzed oxidative desamination of L-amino acids, the most specific substrate is L-Phe. The best substrates among the studied 20 amino acids were: L-Met, L-Leu, L-Phe, L-Ile, L-Arg and L-His. Five amino acids, L-Ser, L-Pro, Gly, L-Thr and L-Cys, were not oxidized. The enzyme inhibited ADP-induced platelet aggregation dose-dependently with an IC50 of 0.07 microM. The effect was neutralized by catalase. V. berus berus LAAO induced apoptosis in cultured HeLa and K562 cells as shown by DNA fragmentation gel pattern. The induction of apoptosis was inhibited by catalase.