Abstract
Lysosomal biogenesis is an important process in eukaryotic cells to maintain cellular homeostasis. The key components that are involved in the biogenesis such as the lysosomal enzymes, their modifications and the mannose 6-phosphate receptors have been well studied and their evolutionary conservation across mammalian and non-mammalian vertebrates is clearly established. Invertebrate lysosomal biogenesis pathway on the other hand is not well studied. Although, details on mannose 6-phosphate receptors and enzymes involved in lysosomal enzyme modifications were reported earlier, a clear cut pathway has not been established. Recent research on the invertebrate species involving biogenesis of lysosomal enzymes suggests a possible conserved pathway in invertebrates. This review presents certain observations based on these processes that include biochemical, immunological and functional studies. Major conclusions include conservation of MPR-dependent pathway in higher invertebrates and recent evidence suggests that MPR-independent pathway might have been more prominent among lower invertebrates. The possible components of MPR-independent pathway that may play a role in lysosomal enzyme targeting are also discussed here.
Keywords: Biogenesis, invertebrates, lectin, lysosomal enzymes, mannose 6-phosphate receptors, sortilin.
Current Protein & Peptide Science
Title:Lysosomal Enzymes and their Receptors in Invertebrates: An Evolutionary Perspective
Volume: 16 Issue: 1
Author(s): Nadimpalli Siva Kumar and Poorna M. Bhamidimarri
Affiliation:
Keywords: Biogenesis, invertebrates, lectin, lysosomal enzymes, mannose 6-phosphate receptors, sortilin.
Abstract: Lysosomal biogenesis is an important process in eukaryotic cells to maintain cellular homeostasis. The key components that are involved in the biogenesis such as the lysosomal enzymes, their modifications and the mannose 6-phosphate receptors have been well studied and their evolutionary conservation across mammalian and non-mammalian vertebrates is clearly established. Invertebrate lysosomal biogenesis pathway on the other hand is not well studied. Although, details on mannose 6-phosphate receptors and enzymes involved in lysosomal enzyme modifications were reported earlier, a clear cut pathway has not been established. Recent research on the invertebrate species involving biogenesis of lysosomal enzymes suggests a possible conserved pathway in invertebrates. This review presents certain observations based on these processes that include biochemical, immunological and functional studies. Major conclusions include conservation of MPR-dependent pathway in higher invertebrates and recent evidence suggests that MPR-independent pathway might have been more prominent among lower invertebrates. The possible components of MPR-independent pathway that may play a role in lysosomal enzyme targeting are also discussed here.
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Cite this article as:
Kumar Siva Nadimpalli and Bhamidimarri M. Poorna, Lysosomal Enzymes and their Receptors in Invertebrates: An Evolutionary Perspective, Current Protein & Peptide Science 2015; 16 (1) . https://dx.doi.org/10.2174/1389203716666150213161311
DOI https://dx.doi.org/10.2174/1389203716666150213161311 |
Print ISSN 1389-2037 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5550 |
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