The human disease gene LYSET is essential for lysosomal enzyme transport and viral infection
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The human disease gene LYSET is essential for lysosomal enzyme transport and viral infection. / Richards, Christopher M; Jabs, Sabrina; Qiao, Wenjie; Varanese, Lauren D; Schweizer, Michaela; Mosen, Peter R; Riley, Nicholas M; Klüssendorf, Malte; Zengel, James R; Flynn, Ryan A; Rustagi, Arjun; Widen, John C; Peters, Christine E; Ooi, Yaw Shin; Xie, Xuping; Shi, Pei-Yong; Bartenschlager, Ralf; Puschnik, Andreas S; Bogyo, Matthew; Bertozzi, Carolyn R; Blish, Catherine A; Winter, Dominic; Nagamine, Claude M; Braulke, Thomas; Carette, Jan E.
In: SCIENCE, Vol. 378, No. 6615, eabn5648, 07.10.2022.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - The human disease gene LYSET is essential for lysosomal enzyme transport and viral infection
AU - Richards, Christopher M
AU - Jabs, Sabrina
AU - Qiao, Wenjie
AU - Varanese, Lauren D
AU - Schweizer, Michaela
AU - Mosen, Peter R
AU - Riley, Nicholas M
AU - Klüssendorf, Malte
AU - Zengel, James R
AU - Flynn, Ryan A
AU - Rustagi, Arjun
AU - Widen, John C
AU - Peters, Christine E
AU - Ooi, Yaw Shin
AU - Xie, Xuping
AU - Shi, Pei-Yong
AU - Bartenschlager, Ralf
AU - Puschnik, Andreas S
AU - Bogyo, Matthew
AU - Bertozzi, Carolyn R
AU - Blish, Catherine A
AU - Winter, Dominic
AU - Nagamine, Claude M
AU - Braulke, Thomas
AU - Carette, Jan E
PY - 2022/10/7
Y1 - 2022/10/7
N2 - Lysosomes are key degradative compartments of the cell. Transport to lysosomes relies on GlcNAc-1-phosphotransferase-mediated tagging of soluble enzymes with mannose 6-phosphate (M6P). GlcNAc-1-phosphotransferase deficiency leads to the severe lysosomal storage disorder mucolipidosis II (MLII). Several viruses require lysosomal cathepsins to cleave structural proteins and thus depend on functional GlcNAc-1-phosphotransferase. We used genome-scale CRISPR screens to identify lysosomal enzyme trafficking factor (LYSET, also named TMEM251) as essential for infection by cathepsin-dependent viruses including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). LYSET deficiency resulted in global loss of M6P tagging and mislocalization of GlcNAc-1-phosphotransferase from the Golgi complex to lysosomes. Lyset knockout mice exhibited MLII-like phenotypes, and human pathogenic LYSET alleles failed to restore lysosomal sorting defects. Thus, LYSET is required for correct functioning of the M6P trafficking machinery and mutations in LYSET can explain the phenotype of the associated disorder.
AB - Lysosomes are key degradative compartments of the cell. Transport to lysosomes relies on GlcNAc-1-phosphotransferase-mediated tagging of soluble enzymes with mannose 6-phosphate (M6P). GlcNAc-1-phosphotransferase deficiency leads to the severe lysosomal storage disorder mucolipidosis II (MLII). Several viruses require lysosomal cathepsins to cleave structural proteins and thus depend on functional GlcNAc-1-phosphotransferase. We used genome-scale CRISPR screens to identify lysosomal enzyme trafficking factor (LYSET, also named TMEM251) as essential for infection by cathepsin-dependent viruses including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). LYSET deficiency resulted in global loss of M6P tagging and mislocalization of GlcNAc-1-phosphotransferase from the Golgi complex to lysosomes. Lyset knockout mice exhibited MLII-like phenotypes, and human pathogenic LYSET alleles failed to restore lysosomal sorting defects. Thus, LYSET is required for correct functioning of the M6P trafficking machinery and mutations in LYSET can explain the phenotype of the associated disorder.
KW - Animals
KW - COVID-19/genetics
KW - Cathepsins/metabolism
KW - Humans
KW - Lysosomes/metabolism
KW - Mannose/metabolism
KW - Mice
KW - Mice, Knockout
KW - Mucolipidoses/genetics
KW - Proteins/genetics
KW - Transferases (Other Substituted Phosphate Groups)
U2 - 10.1126/science.abn5648
DO - 10.1126/science.abn5648
M3 - SCORING: Journal article
C2 - 36074821
VL - 378
JO - SCIENCE
JF - SCIENCE
SN - 0036-8075
IS - 6615
M1 - eabn5648
ER -