PXD028982

PXD028982 is an original dataset announced via ProteomeXchange.

Title	Installation of O-glycan sulfation capacities in human HEK293 cells
Description	The human genome contains at least 35 genes that encode Golgi sulfotransferases functioning in the secretory pathway, where they are involved in decorating glycosaminoglycans, glycolipids, and glycoproteins with sulfate groups. Our insight into the sulfotransferases that serve glycoproteins and in particular GalNAc-type O-glycoproteins is limited, yet a number of important interactions with sulfated glycans by e.g. Selectins, Galectins, and Siglecs are thought to mainly rely on sulfated O-glycans. Moreover, sulfated mucins appear to be accumulated in respiratory diseases, arthritis and cancer. To explore further the genetic and biosynthetic regulation of sulfated O-glycans, we have started to expand a cell-based glycan array in the human HEK293 cell line with sulfation capacities. Here, we stably engineered O-glycan sulfation capacities in HEK293 cells by site-directed knock-in of sulfotransferase genes, in combination with knockout of endogenous core2 and/or sialylation capacities, to enable production of mucin reporters with sulfated O-glycans. Expression of GAL3ST2 in HEK293 cells resulted in sulfation of core1 and core2 O-glycans, whereas expression of GAL3ST4 resulted in sulfation of core1 only. We used the engineered cell library to dissect the binding specificity of galectin-4 and confirmed binding to the 3-O-sulfo-core1 O-glycan
HostingRepository	PRIDE
AnnounceDate	2022-02-17
AnnouncementXML	Submission_2022-02-17_00:11:02.996.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Sergey Vakhrushev
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	Hex-HexNAc
Instrument	Orbitrap Fusion Lumos

Revision	Datetime	Status	ChangeLog Entry
0	2021-10-07 01:09:20	ID requested
⏵ 1	2022-02-17 00:11:03	announced

submitter keyword: Glycosylation, O-glycans, sulfation, sulfated-T, sulfated-Tn, MUC1

Sergey Vakhrushev
contact affiliation	University of Copenhagen, Copenhagen Center for Glycomics, Glyco MS Group
contact email	seva@sund.ku.dk
lab head
Sergey Vakhrushev
contact affiliation	Department of Cellular and Molecular Medicine
contact email	seva@sund.ku.dk
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD028982
     1. Label: PRIDE project
     2. Name: Installation of O-glycan sulfation capacities in human HEK293 cells