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Mannose 6‐phosphate‐dependent lysosomal enzyme targeting in hydra: a biochemical, immunological and structural elucidation
Author(s) -
Bhamidimarri Poorna Manasa,
Krishnapati Lakshmi Surekha,
Ghaskadbi Surendra,
Nadimpalli Siva Kumar
Publication year - 2018
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1002/1873-3468.13030
Subject(s) - mannose 6 phosphate , lernaean hydra , mannose , lysosome , mannose 6 phosphate receptor , endosome , biology , biochemistry , enzyme , microbiology and biotechnology , receptor , growth factor
Mannose 6‐phosphate (M6P)‐dependent lysosomal enzyme targeting to endosome/lysosome complex is poorly understood among lower invertebrates. So far, only a M6P‐independent lysosomal enzyme sorting protein, named LERP , has been described in Drosophila . Here, we have identified mannose 6‐phosphate receptor ( MPR ) homologues in Hydra vulgaris , a basal Cnidarian, at genome level and further purified a cation‐dependent MPR‐like protein from hydra using affinity chromatography. Structural comparisons of hydra MPR s with mammalian MPR s confirm that the residues important for interacting with the M6P ligand are conserved. Based on our results, we report for the first time the occurrence of MPR ‐related proteins and M6P‐dependent lysosomal enzyme targeting in H. vulgaris .