Gene Summary: This LOXL2 gene encodes a member of the lysyl oxidase gene family. The prototypic member of the family is essential to the biogenesis of connective tissue, encoding an extracellular copper-dependent amine oxidase that catalyses the first step in the formation of crosslinks in collagens and elastin. A highly conserved amino acid sequence at the C-terminus end appears to be sufficient for amine oxidase activity, suggesting that each family member may retain this function. The N-terminus is poorly conserved and may impart additional roles in developmental regulation, senescence, tumor suppression, cell growth control, and chemotaxis to each member of the family. [provided by RefSeq, Jul 2008]General information above from NCBI
Catalytic activity: Peptidyl-L-lysyl-peptide + O(2) + H(2)O = peptidyl-allysyl-peptide + NH(3) + H(2)O(2).
Cofactor: Copper (By similarity).
Contains 1 lysine tyrosylquinone (By similarity).
Enzyme regulation: According to some reports, it is inhibited by beta-aminopropionitrile (BAPN) (PubMed:20439985 and PubMed:23319596). According to another report, it is not inhibited by beta-aminopropionitrile (BAPN) (PubMed:20306300). Specifically inhibited by a mouse monoclonal antibody AB0023, inhibition occurs in a non-competitive manner.
Subunit structure: Component of some chromatin repressor complex. Interacts with SNAI1.
Domain: The fourth SRCR domain plays a important role in optimizing the catalytic activity of the lysyl-oxidase like (LOX) catalytic domain.
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.
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.
Post-translational: 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.
Sequence similarity: Belongs to the lysyl oxidase family.
Contains 4 SRCR domains.
General information above from UniProt