Reviewed, UniProtKB/Swiss-Prot Q4JHE2 (OXLA_NOTSC)

Names and origin

Protein names	Recommended name:     L-amino-acid oxidase       Short name=LAAO       Short name=LAO     EC=1.4.3.2
Organism	Notechis scutatus scutatus (Mainland tiger snake) (Common tiger snake)
Taxonomic identifier	70142 [NCBI]
Taxonomic lineage	Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Lepidosauria › Squamata › Scleroglossa › Serpentes › Colubroidea › Elapidae › Acanthophiinae › Notechis

Protein attributes

Sequence length	517 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence at transcript level.

General annotation (Comments)

Function	Catalyzes an oxidative deamination of predominantly hydrophobic and aromatic L-amino acids. Inhibits platelet aggregation. Has an ability to induce apoptosis and hemorrhage. Has an antibacterial activity By similarity.
Catalytic activity	An L-amino acid + H(2)O + O(2) = a 2-oxo acid + NH(3) + H(2)O(2).
Cofactor	FAD By similarity.
Subunit structure	Homodimer By similarity.
Subcellular location	SecretedBy similarity.
Tissue specificity	Expressed by the venom gland.
Post-translational modification	Glycosylated By similarity.
Sequence similarities	Belongs to the flavin monoamine oxidase family. FIG1 subfamily.

Ontologies

Keywords
Biological process	Apoptosis Blood coagulation
Cellular component	Secreted
Domain	Signal
Ligand	FAD Flavoprotein
Molecular function	Antibiotic Antimicrobial Oxidoreductase Toxin
PTM	Glycoprotein
Gene Ontology (GO)
Biological process	apoptosis Inferred from electronic annotation. Source: UniProtKB-KW blood coagulation Inferred from electronic annotation. Source: UniProtKB-KW defense response to bacterium Inferred from electronic annotation. Source: UniProtKB-KW oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW pathogenesis Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	extracellular region Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	L-amino-acid oxidase activity Inferred from electronic annotation. Source: EC electron carrier activity Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Signal peptide	1 – 18	18	By similarity
	Chain	19 – 517	499	L-amino-acid oxidase		PRO_5000140379
Regions
	Nucleotide binding	108 – 109	2	FAD By similarity
	Nucleotide binding	485 – 488	4	FAD By similarity
Sites
	Binding site	82	1	FAD By similarity
	Binding site	90	1	FAD By similarity
	Binding site	109	1	Substrate By similarity
	Binding site	280	1	FAD; via amide nitrogen and carbonyl oxygen By similarity
	Binding site	391	1	Substrate By similarity
	Binding site	476	1	FAD By similarity
Amino acid modifications
	Glycosylation	191	1	N-linked (GlcNAc...) Potential
	Glycosylation	380	1	N-linked (GlcNAc...) Potential
	Disulfide bond	29 ↔ 192		By similarity
	Disulfide bond	350 ↔ 431		By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q4JHE2-1 [UniParc]. Last modified August 2, 2005. Version 1. Checksum: E5A0DFF675FF34E1	FASTA	517	59,058
	10 20 30 40 50 60 MNVFFMFSLL FLAALESCAD DRRRPLEECF QEADYEEFLE IARNGLNETS NPKHVVVVGA 70 80 90 100 110 120 GMAGLSAAYV LAGAGHNVTL LEASERVGGR VNTYRNETEG WYVNLGPMRL PERHRIIREY 130 140 150 160 170 180 IRKFGLKLNE FLQENENAWY FIRNIRKRVW EVKKDPGVFK YPVEPSEEGK SASQLYRESL 190 200 210 220 230 240 EKVIEELKRT NCSYILNKYD TYSTKEYLIK EGNLSRGAVD MIGKLPNEDS SYYLSFIESL 250 260 270 280 290 300 KSDDLFSYEK RFDEIVGGFD QLPISMYQAI AEMVHLNAQV IKIQHNAEEV RVAYQTPAKT 310 320 330 340 350 360 LSYVTADYVI VCSTSRAARR IYFEPPLPPK KAHALRSIHY RSGTKIFLTC TRKFWEADGI 370 380 390 400 410 420 HGGKSTTDLP SRFIYYPNHN FTSDVGVIVA YTLADDADFF QALDIKTSAD IVINDLSLIH 430 440 450 460 470 480 QLPKEEIQAL CYPSMIKKWS LDKYAMGAIT SFTPYQFQDF IETVAAPVGR IYFAGEYTAR 490 500 510 VHGWLDSTIK SGLTAARDVN RASQKPSRRQ LSNDNEL

References

[1]

"Identification and analysis of venom gland-specific genes from the coastal taipan (Oxyuranus scutellatus) and related species." St Pierre L., Woods R., Earl S.T.H., Masci P.P., Lavin M.F. Cell. Mol. Life Sci. 62:2679-2693(2005) [PubMed: 16261251] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Tissue: Venom gland.

Cross-references

Sequence databases
EMBLGenBankDDBJ	DQ088991 mRNA. Translation: AAY89681.1.
3D structure databases
SMR	Q4JHE2. Positions 23-504.
ModBase	Search...
Phylogenomic databases
HOVERGEN	Q4JHE2.
Family and domain databases
InterPro	IPR000759. Adrndx_reductase. IPR001613. Amineoxid_fl. IPR002937. Amino_oxidase. [Graphical view]
Pfam	PF01593. Amino_oxidase. 1 hit. [Graphical view]
PRINTS	PR00419. ADXRDTASE. PR00757. AMINEOXDASEF.
ProtoNet	Search...

Entry information

Entry name

OXLA_NOTSC

Accession

Primary (citable) accession number: Q4JHE2

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 23, 2007
Last sequence update:	August 2, 2005
Last modified:	November 25, 2008
This is version 28 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

Tox-Prot (Toxin Annotation Project)