Q9Y4K0 (LOXL2_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 117.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Lysyl oxidase homolog 2 EC=1.4.3.13 Alternative name(s): Lysyl oxidase-like protein 2 Lysyl oxidase-related protein 2 Lysyl oxidase-related protein WS9-14 | ||
| Gene names |
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| Organism | Homo sapiens (Human) [Reference proteome] | ||
| Taxonomic identifier | 9606 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 774 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Mediates the post-translational oxidative deamination of lysine residues on target proteins leading to the formation of deaminated lysine (allysine). When secreted in extracellular matrix, promotes cross-linking of extracellular matrix proteins by mediating oxidative deamination of peptidyl lysine residues in precursors to fibrous collagen and elastin. Acts as a regulator of sprouting angiogenesis, probably via collagen IV scaffolding. When nuclear, acts as a transcription corepressor and specifically mediates deamination of trimethylated 'Lys-4' of histone H3 (H3K4me3), a specific tag for epigenetic transcriptional activation. Involved in epithelial to mesenchymal transition (EMT) via interaction with SNAI1 and participates in repression of E-cadherin, probably by mediating deamination of histone H3. Also involved in E-cadherin repression following hypoxia, a hallmark of epithelial to mesenchymal transition believed to amplify tumor aggressiveness, suggesting that it may play a role in tumor progression. Acts as a regulator of chondrocyte differentiation, probably by regulating expression of factors that control chondrocyte differentiation. Ref.7 Ref.8 Ref.11 Ref.12 Ref.13 Ref.16 |
| Catalytic activity | Peptidyl-L-lysyl-peptide + O2 + H2O = peptidyl-allysyl-peptide + NH3 + H2O2. Ref.9 Ref.14 Ref.17 |
| Cofactor | Copper By similarity. Contains 1 lysine tyrosylquinone By similarity. |
| Enzyme regulation | According to some reports, it is inhibited by beta-aminopropionitrile (BAPN) (Ref.9 and Ref.17). According to another report, it is not inhibited by beta-aminopropionitrile (BAPN) (Ref.14). Specifically inhibited by a mouse monoclonal antibody AB0023, inhibition occurs in a non-competitive manner. Ref.9 Ref.10 Ref.14 Ref.17 |
| Subunit structure | Component of some chromatin repressor complex. Interacts with SNAI1. Ref.7 |
| Subcellular location | Secreted › extracellular space › extracellular matrix › basement membrane By similarity. Nucleus. Chromosome. Note: Associated with chromatin. It is unclear how LOXL2 is nuclear: it contains a clear signal sequence and is predicted to localize in the extracellular medium. However, different reports confirmed the intracellular location and its key role in transcription regulation. Ref.7 Ref.16 Ref.17 |
| Tissue specificity | Expressed in many tissues. Highest expression in reproductive tissues, placenta, uterus and prostate. Up-regulated in a number of cancers cells and tissues. |
| Induction | Strongly induced in hypoxia. Direct transcriptional target of HIF1A. Ref.8 Ref.9 Ref.10 Ref.14 Ref.17 |
| Domain | The fourth SRCR domain plays a important role in optimizing the catalytic activity of the lysyl-oxidase like (LOX) catalytic domain. |
| Post-translational modification | The lysine tyrosylquinone cross-link (LTQ) is generated by condensation of the epsilon-amino group of a lysine with a topaquinone produced by oxidation of tyrosine. N-glycosylated. N-glycosylation on Asn-455 and Asn-644 may be essential for proper folding and secretion; may be composed of a fucosylated carbohydrates attached to a trimannose N-linked glycan core. Ref.17 |
| Miscellaneous | Its overexpression in a number of cancer and its ability to promote epithelial to mesenchymal transition suggest that LOXL2 might play a role in tumor progression: expression is correlated with metastasis and decreased survival in patients with aggressive breast cancer (Ref.13). Allosteric inhibition by AB0023 inhibits formation of the tumor microenvironment and reduces metastatic tumor burden in xenograft models (Ref.10 and Ref.13). However, inhibiting the enzyme activity of LOXL2 may not be sufficient, since mutants that lack enzyme activity or inhibition of the activity by AB0023 antibody does not prevent inhibition of the differentiation of keratinocytes, thereby promoting development of squamous cell carcinomas (Ref.15). |
| Sequence similarities | Belongs to the lysyl oxidase family. Contains 4 SRCR domains. |
| Biophysicochemical properties | Kinetic parameters: kcat is 2.04 min(-1) with tropoelastin as substrate (without the first three SRCR domains). kcat is 0.62 min(-1) with tropoelastin as substrate (without all four SRCR domains). KM=1.01 mM for 1,5-diaminopentane Ref.9 Ref.17 KM=1.05 mM for spermine KM=0.59 µM for tropoelastin (without the first three SRCR domains) KM=0.62 µM for tropoelastin (without all four SRCR domains) |
| Sequence caution | The sequence AAD34343.1 differs from that shown. Reason: Erroneous termination at position 775. Translated as stop. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||
Molecule processing | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 25 | 25 | Potential | ||||||||
| Chain | 26 – 774 | 749 | Lysyl oxidase homolog 2 | PRO_0000018532 | |||||||
Regions | |||||||||||
| Domain | 58 – 159 | 102 | SRCR 1 | ||||||||
| Domain | 188 – 302 | 115 | SRCR 2 | ||||||||
| Domain | 326 – 425 | 100 | SRCR 3 | ||||||||
| Domain | 435 – 544 | 110 | SRCR 4 | ||||||||
| Region | 548 – 751 | 204 | Lysyl-oxidase like | ||||||||
Sites | |||||||||||
| Metal binding | 626 | 1 | Copper Potential | ||||||||
| Metal binding | 628 | 1 | Copper Potential | ||||||||
| Metal binding | 630 | 1 | Copper Potential | ||||||||
Amino acid modifications | |||||||||||
| Modified residue | 689 | 1 | 2',4',5'-topaquinone By similarity | ||||||||
| Glycosylation | 288 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 455 | 1 | N-linked (GlcNAc...) (complex) Ref.17 | ||||||||
| Glycosylation | 644 | 1 | N-linked (GlcNAc...) (complex) Ref.17 | ||||||||
| Disulfide bond | 84 ↔ 148 | By similarity | |||||||||
| Disulfide bond | 97 ↔ 158 | By similarity | |||||||||
| Disulfide bond | 128 ↔ 138 | By similarity | |||||||||
| Disulfide bond | 218 ↔ 291 | By similarity | |||||||||
| Disulfide bond | 231 ↔ 301 | By similarity | |||||||||
| Disulfide bond | 265 ↔ 275 | By similarity | |||||||||
| Disulfide bond | 351 ↔ 414 | By similarity | |||||||||
| Disulfide bond | 364 ↔ 424 | By similarity | |||||||||
| Disulfide bond | 395 ↔ 405 | By similarity | |||||||||
| Disulfide bond | 464 ↔ 530 | By similarity | |||||||||
| Disulfide bond | 477 ↔ 543 | By similarity | |||||||||
| Disulfide bond | 511 ↔ 521 | By similarity | |||||||||
| Disulfide bond | 573 ↔ 579 | By similarity | |||||||||
| Disulfide bond | 625 ↔ 673 | By similarity | |||||||||
| Disulfide bond | 657 ↔ 663 | By similarity | |||||||||
| Disulfide bond | 685 ↔ 695 | By similarity | |||||||||
| Disulfide bond | 732 ↔ 746 | By similarity | |||||||||
| Cross-link | 653 ↔ 689 | Lysine tyrosylquinone (Lys-Tyr) | |||||||||
Natural variations | |||||||||||
| Natural variant | 308 | 1 | S → R. Corresponds to variant rs4871866 [ dbSNP | Ensembl ]. | VAR_050009 | |||||||
| Natural variant | 359 | 1 | S → W. Corresponds to variant rs4602894 [ dbSNP | Ensembl ]. | VAR_050010 | |||||||
| Natural variant | 570 | 1 | M → L. Ref.3 Ref.5 Corresponds to variant rs1063582 [ dbSNP | Ensembl ]. | VAR_024527 | |||||||
Experimental info | |||||||||||
| Mutagenesis | 455 | 1 | N → Q: Inhibits secretion. Ref.17 | ||||||||
| Mutagenesis | 626 – 628 | 3 | HRH → ARA: Loss of catalytic activity and abolishes ability to repress transcription. Ref.16 | ||||||||
| Mutagenesis | 644 | 1 | N → Q: Inhibits secretion. Ref.17 | ||||||||
| Mutagenesis | 689 | 1 | Y → F: Does not affect ability to inhibit keratinocyte differentiation. Ref.15 | ||||||||
| Sequence conflict | 184 | 1 | E → K in BAG35197. Ref.2 | ||||||||
| Sequence conflict | 239 | 1 | E → G in BAD96197. Ref.3 | ||||||||
| Sequence conflict | 295 | 1 | L → Q in AAD34343. Ref.6 | ||||||||
| Sequence conflict | 536 | 1 | Q → R in BAG35197. Ref.2 | ||||||||
| Sequence conflict | 652 | 1 | H → Q in AAD34343. Ref.6 | ||||||||
| Sequence conflict | 746 | 1 | C → S in AAD34343. Ref.6 | ||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Regulation of a novel gene encoding a lysyl oxidase-related protein in cellular adhesion and senescence." Saito H., Papaconstantinou J., Sato H., Goldstein S. J. Biol. Chem. 272:8157-8160(1997) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. |
| [2] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. |
| [3] | Suzuki Y., Sugano S., Totoki Y., Toyoda A., Takeda T., Sakaki Y., Tanaka A., Yokoyama S. Submitted (APR-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA], VARIANT LEU-570. Tissue: Adipose tissue. |
| [4] | "DNA sequence and analysis of human chromosome 8." Nusbaum C., Mikkelsen T.S., Zody M.C., Asakawa S., Taudien S., Garber M., Kodira C.D., Schueler M.G., Shimizu A., Whittaker C.A., Chang J.L., Cuomo C.A., Dewar K., FitzGerald M.G., Yang X., Allen N.R., Anderson S., Asakawa T. Lander E.S.Nature 439:331-335(2006) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [5] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA], VARIANT LEU-570. Tissue: Kidney. |
| [6] | "The LOXL2 gene encodes a new lysyl oxidase-like protein and is expressed at high levels in reproductive tissues." Jourdan-Le Saux C., Tronecker H., Bogic L., Bryant-Greenwood G.D., Boyd C.D., Csiszar K. J. Biol. Chem. 274:12939-12944(1999) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 202-774. Tissue: Placenta and Spleen. |
| [7] | "A molecular role for lysyl oxidase-like 2 enzyme in snail regulation and tumor progression." Peinado H., Del Carmen Iglesias-de la Cruz M., Olmeda D., Csiszar K., Fong K.S., Vega S., Nieto M.A., Cano A., Portillo F. EMBO J. 24:3446-3458(2005) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION, INTERACTION WITH SNAI1. |
| [8] | "The lysyl oxidases LOX and LOXL2 are necessary and sufficient to repress E-cadherin in hypoxia: insights into cellular transformation processes mediated by HIF-1." Schietke R., Warnecke C., Wacker I., Schodel J., Mole D.R., Campean V., Amann K., Goppelt-Struebe M., Behrens J., Eckardt K.U., Wiesener M.S. J. Biol. Chem. 285:6658-6669(2010) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, INDUCTION. |
| [9] | "Modulation of lysyl oxidase-like 2 enzymatic activity by an allosteric antibody inhibitor." Rodriguez H.M., Vaysberg M., Mikels A., McCauley S., Velayo A.C., Garcia C., Smith V. J. Biol. Chem. 285:20964-20974(2010) [PubMed] [Europe PMC] [Abstract] Cited for: CATALYTIC ACTIVITY, BIOPHYSICOCHEMICAL PROPERTIES, ENZYME REGULATION. |
| [10] | "Allosteric inhibition of lysyl oxidase-like-2 impedes the development of a pathologic microenvironment." Barry-Hamilton V., Spangler R., Marshall D., McCauley S., Rodriguez H.M., Oyasu M., Mikels A., Vaysberg M., Ghermazien H., Wai C., Garcia C.A., Velayo A.C., Jorgensen B., Biermann D., Tsai D., Green J., Zaffryar-Eilot S., Holzer A. Smith V.Nat. Med. 16:1009-1017(2010) [PubMed] [Europe PMC] [Abstract] Cited for: ENZYME REGULATION. |
| [11] | "Lysyl oxidase-like protein-2 regulates sprouting angiogenesis and type IV collagen assembly in the endothelial basement membrane." Bignon M., Pichol-Thievend C., Hardouin J., Malbouyres M., Brechot N., Nasciutti L., Barret A., Teillon J., Guillon E., Etienne E., Caron M., Joubert-Caron R., Monnot C., Ruggiero F., Muller L., Germain S. Blood 118:3979-3989(2011) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION. |
| [12] | "LOXL2-mediated matrix remodeling in metastasis and mammary gland involution." Barker H.E., Chang J., Cox T.R., Lang G., Bird D., Nicolau M., Evans H.R., Gartland A., Erler J.T. Cancer Res. 71:1561-1572(2011) [PubMed] [Europe PMC] [Abstract] Cited for: ROLE IN TUMOR PROGRESSION. |
| [13] | "Lysyl oxidase-like 2 (LOXL2), a new regulator of cell polarity required for metastatic dissemination of basal-like breast carcinomas." Moreno-Bueno G., Salvador F., Martin A., Floristan A., Cuevas E.P., Santos V., Montes A., Morales S., Castilla M.A., Rojo-Sebastian A., Martinez A., Hardisson D., Csiszar K., Portillo F., Peinado H., Palacios J., Cano A. EMBO Mol. Med. 3:528-544(2011) [PubMed] [Europe PMC] [Abstract] Cited for: ROLE IN TUMOR PROGRESSION. |
| [14] | "The human lysyl oxidase-like 2 protein functions as an amine oxidase toward collagen and elastin." Kim Y.M., Kim E.C., Kim Y. Mol. Biol. Rep. 38:145-149(2011) [PubMed] [Europe PMC] [Abstract] Cited for: CATALYTIC ACTIVITY, ENZYME REGULATION. |
| [15] | "The enzymatic activity of lysyl oxidas-like-2 (LOXL2) is not required for LOXL2-induced inhibition of keratinocyte differentiation." Lugassy J., Zaffryar-Eilot S., Soueid S., Mordoviz A., Smith V., Kessler O., Neufeld G. J. Biol. Chem. 287:3541-3549(2012) [PubMed] [Europe PMC] [Abstract] Cited for: MUTAGENESIS OF TYR-689. |
| [16] | "Lysyl oxidase-like 2 deaminates lysine 4 in histone H3." Herranz N., Dave N., Millanes-Romero A., Morey L., Diaz V.M., Lorenz-Fonfria V., Gutierrez-Gallego R., Jeronimo C., Di Croce L., Garcia de Herreros A., Peiro S. Mol. Cell 46:369-376(2012) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION, MUTAGENESIS OF 626-HIS--HIS-628. |
| [17] | "Post-translational Modifications of Recombinant Human Lysyl Oxidase-like 2 (rhLOXL2) Secreted from Drosophila S2 Cells." Xu L., Go E.P., Finney J., Moon H., Lantz M., Rebecchi K., Desaire H., Mure M. J. Biol. Chem. 288:5357-5363(2013) [PubMed] [Europe PMC] [Abstract] Cited for: CATALYTIC ACTIVITY, ENZYME REGULATION, BIOPHYSICOCHEMICAL PROPERTIES, GLYCOSYLATION AT ASN-455 AND ASN-644, MUTAGENESIS OF ASN-455 AND ASN-644, CROSS-LINK FORMATION, SUBCELLULAR LOCATION. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | U89942 mRNA. Translation: AAB49697.1. AK312266 mRNA. Translation: BAG35197.1. AK222477 mRNA. Translation: BAD96197.1. AC090197 Genomic DNA. No translation available. BC000594 mRNA. Translation: AAH00594.1. AF117949 mRNA. Translation: AAD34343.1. Sequence problems. |
| IPI | IPI00294839. |
| RefSeq | NP_002309.1. NM_002318.2. |
| UniGene | Hs.626637. |
3D structure databases | |
| ProteinModelPortal | Q9Y4K0. |
| ModBase | Search... |
Protein-protein interaction databases | |
| MINT | MINT-4053647. |
| STRING | 9606.ENSP00000373783. |
PTM databases | |
| PhosphoSite | Q9Y4K0. |
Polymorphism databases | |
| DMDM | 13878585. |
Proteomic databases | |
| PaxDb | Q9Y4K0. |
| PRIDE | Q9Y4K0. |
Protocols and materials databases | |
| DNASU | 4017. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000389131; ENSP00000373783; ENSG00000134013. |
| GeneID | 4017. |
| KEGG | hsa:4017. |
| UCSC | uc003xdh.1. human. |
Organism-specific databases | |
| CTD | 4017. |
| GeneCards | GC08M023210. |
| H-InvDB | HIX0007387. |
| HGNC | HGNC:6666. LOXL2. |
| HPA | CAB025848. |
| MIM | 606663. gene. |
| neXtProt | NX_Q9Y4K0. |
| PharmGKB | PA30429. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | NOG40770. |
| HOGENOM | HOG000220841. |
| HOVERGEN | HBG052336. |
| InParanoid | Q9Y4K0. |
| KO | K00280. |
| OMA | FSMDCTG. |
| OrthoDB | EOG4B8JCF. |
Enzyme and pathway databases | |
| Reactome | REACT_118779. Extracellular matrix organization. |
Gene expression databases | |
| ArrayExpress | Q9Y4K0. |
| Bgee | Q9Y4K0. |
| CleanEx | HS_LOXL2. |
| Genevestigator | Q9Y4K0. |
| GermOnline | ENSG00000134013. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR001695. Lysyl_oxidase. IPR019828. Lysyl_oxidase_CS. IPR001190. Srcr_rcpt. IPR017448. Srcr_rcpt-rel. [Graphical view] |
| Pfam | PF01186. Lysyl_oxidase. 1 hit. PF00530. SRCR. 4 hits. [Graphical view] |
| PRINTS | PR00074. LYSYLOXIDASE. PR00258. SPERACTRCPTR. |
| SMART | SM00202. SR. 4 hits. [Graphical view] |
| SUPFAM | SSF56487. Srcr_receptor. 4 hits. |
| PROSITE | PS00926. LYSYL_OXIDASE. 1 hit. PS00420. SRCR_1. 2 hits. PS50287. SRCR_2. 4 hits. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | LOXL2. human. |
| GenomeRNAi | 4017. |
| NextBio | 15762. |
| SOURCE | Search... |
Entry information
| Entry name | LOXL2_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q9Y4K0 Secondary accession number(s): B2R5Q0 Q9Y5Y8 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 8 Human chromosome 8: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
