Abstract
Lysyl oxidase (LOX) and four lysyl oxidase-like proteins, LOXL, LOXL2, LOXL3 and LOXL4, each contain a copper binding site, conserved lysyl and tyrosyl residues that may contribute to quinone co-factor formation, and a cytokine receptor-like domain. Each protein differs mainly in their N-terminal sequence, which may confer individual functions. Processing of the LOX proteins by BMP-1 and possibly other mechanisms may result in multiple functional forms. Splicing, reported for LOXL3, may also generate additional variants with unique functions. Each LOX, with its individual, developmentally regulated tissue and cell-specific expression and localization, results in a complex structural and functional variation for the LOX amine oxidases. The presence of only two LOX-like proteins in Drosophila, each with distinct spatial and temporal expression, allows for the assignment of individual function to one of these amine oxidases. Comparative expression analysis of each LOX protein is presented to help determine their functional significance.
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Schedule a callMore From: Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics
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