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@ARTICLE{Lpez:454621,
author = {López, David Massa and Kählau, Lea and Jungnickel,
Katharina Esther Julia and Loew, Christian and Damme,
Markus},
title = {{C}haracterization of the complex of the lysosomal membrane
transporter {MFSD}1 and its accessory subunit {GLMP}},
journal = {The FASEB journal},
volume = {34},
number = {11},
issn = {1530-6860},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {PUBDB-2021-00623},
pages = {14695 - 14709},
year = {2020},
abstract = {The two lysosomal integral membrane proteins MFSD1 and GLMP
form a tight complex that confers protection of both
interaction partners against lysosomal proteolysis. We here
refined the molecular interaction of the two proteins and
found that the luminal domain of GLMP alone, but not its
transmembrane domain or its short cytosolic tail, conveys
protection and mediates the interaction with MFSD1. Our data
support the finding that the interaction is essential for
the stabilization of the complex. These results are
complemented by the observation that N‐glycosylation of
GLMP in general, but not the type of N‐glycans
(high‐mannose‐type or complex‐type) or individual
N‐glycan chains, are essential for protection. We observed
that the interaction of both proteins already starts in the
endoplasmic reticulum, and quantitatively depends on each
other. Both proteins can affect vice versa their
intracellular trafficking to lysosomes in addition to the
protection from proteolysis. Finally, we provide evidence
that MFSD1 can form homodimers both in vitro and in vivo.
Our data refine the complex interplay between an intimate
couple of a lysosomal transporter and its accessory
subunit.},
cin = {CSSB-GS / CSSB-EMBL-CL},
ddc = {570},
cid = {I:(DE-H253)CSSB-GS-20140311 /
I:(DE-H253)CSSB-EMBL-CL-20210806},
pnm = {6215 - Soft Matter, Health and Life Sciences (POF3-621)},
pid = {G:(DE-HGF)POF3-6215},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32959924},
UT = {WOS:000573860500001},
doi = {10.1096/fj.202000912RR},
url = {https://bib-pubdb1.desy.de/record/454621},
}