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Protein

L-amino-acid oxidase

Gene
N/A
Organism
Echis ocellatus (Ocellated saw-scaled viper)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

Catalyzes an oxidative deamination of predominantly hydrophobic and aromatic L-amino acids, thus producing hydrogen peroxide that may contribute to the diverse toxic effects of this enzyme. Exhibits diverse biological activities, such as hemorrhage, hemolysis, edema, apoptosis of vascular endothelial cells or tumor cell lines, antibacterial and antiparasitic activities, as well as regulation of platelet aggregation. Its effect on platelets is controversial, since it either induces aggregation or inhibits agonist-induced aggregation. These different effects are probably due to different experimental conditions.By similarity

Catalytic activityi

An L-amino acid + H2O + O2 = a 2-oxo acid + NH3 + H2O2.

Cofactori

FADBy similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei89FADBy similarity1
Binding sitei108SubstrateBy similarity1
Binding sitei241SubstrateBy similarity1
Binding sitei279FAD; via amide nitrogen and carbonyl oxygenBy similarity1
Binding sitei390SubstrateBy similarity1
Binding sitei475FADBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi61 – 62FADBy similarity2
Nucleotide bindingi81 – 82FADBy similarity2
Nucleotide bindingi105 – 108FADBy similarity4
Nucleotide bindingi482 – 487FADBy similarity6
Nucleotide bindingi482 – 483SubstrateBy similarity2

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Antibiotic, Antimicrobial, Hemostasis impairing toxin, Oxidoreductase, Toxin

Keywords - Biological processi

Apoptosis, Cytolysis, Hemolysis

Keywords - Ligandi

FAD, Flavoprotein

Names & Taxonomyi

Protein namesi
Recommended name:
L-amino-acid oxidase (EC:1.4.3.2)
Short name:
LAAO
Short name:
LAO
OrganismiEchis ocellatus (Ocellated saw-scaled viper)
Taxonomic identifieri99586 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiLepidosauriaSquamataBifurcataUnidentataEpisquamataToxicoferaSerpentesColubroideaViperidaeViperinaeEchis

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Secreted

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 18By similarityAdd BLAST18
ChainiPRO_000041260219 – 504L-amino-acid oxidaseAdd BLAST486

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi28 ↔ 191By similarity
Glycosylationi190N-linked (GlcNAc...)Sequence analysis1
Disulfide bondi349 ↔ 430By similarity
Glycosylationi379N-linked (GlcNAc...)Sequence analysis1

Post-translational modificationi

N-glycosylated.By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein

Expressioni

Tissue specificityi

Expressed by the venom gland.Curated

Interactioni

Subunit structurei

Homodimer; non-covalently linked.By similarity

Structurei

3D structure databases

ProteinModelPortaliB5U6Y8.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Signal

Phylogenomic databases

HOVERGENiHBG005729.

Family and domain databases

Gene3Di3.50.50.60. 3 hits.
InterProiIPR002937. Amino_oxidase.
IPR023753. FAD/NAD-binding_dom.
[Graphical view]
PfamiPF01593. Amino_oxidase. 1 hit.
[Graphical view]
SUPFAMiSSF51905. SSF51905. 2 hits.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

B5U6Y8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNIFFMFSLL FLATLGSCAD DKNPLEECFR EADYEEFLEI AKNGLKKTSN
60 70 80 90 100
PKDIVVVGAG MSGLSAAYVL AGAGHKVTVL EASQLVGGRV RTHRNAKEGW
110 120 130 140 150
YANLGPMRIP EKHRIVREYI RKFGLELNEF VQETDNGWYF VKNIRKRVGE
160 170 180 190 200
VKKDPGLLKY PVKPSEAGKS AGQLYQEALG KAVEELKRTN CSYMLNKYDT
210 220 230 240 250
YSTKEYLIKE GNLSTGAVDM IGDLMNEDSG YYVSFVESMK HDDIFAYEKR
260 270 280 290 300
FDEIVGGMDQ LPTSMYRAIE KSVLFKARVT KIQQNAEKVR VTYQTAAKTL
310 320 330 340 350
SDVTADYVIV CTTSRAARRI NFKPPLPPKK AHALRSVHYR SATKIFLTCT
360 370 380 390 400
KKFWEDDGIQ GGKSTTDLPS RFIYYPNHNF TSGVGVIIAY GIGDDSNFFL
410 420 430 440 450
SLTLNECADI VFSDLSSIHQ LPKNDIQKFC NPSVIQKWSL DRYAMGAITT
460 470 480 490 500
FTPYQFQDYS KALTAPAGRV YFAGEYTANA HGWIDSTIKS GLTAARDVNQ

ASEL
Length:504
Mass (Da):56,523
Last modified:November 4, 2008 - v1
Checksum:i602E5B4A9FCEE797
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
FM177950 mRNA. Translation: CAQ72894.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
FM177950 mRNA. Translation: CAQ72894.1.

3D structure databases

ProteinModelPortaliB5U6Y8.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Phylogenomic databases

HOVERGENiHBG005729.

Family and domain databases

Gene3Di3.50.50.60. 3 hits.
InterProiIPR002937. Amino_oxidase.
IPR023753. FAD/NAD-binding_dom.
[Graphical view]
PfamiPF01593. Amino_oxidase. 1 hit.
[Graphical view]
SUPFAMiSSF51905. SSF51905. 2 hits.
ProtoNetiSearch...

Entry informationi

Entry nameiOXLA_ECHOC
AccessioniPrimary (citable) accession number: B5U6Y8
Entry historyi
Integrated into UniProtKB/Swiss-Prot: September 21, 2011
Last sequence update: November 4, 2008
Last modified: November 11, 2015
This is version 21 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programAnimal Toxin Annotation Program
Annotation programChordata Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.