Proteomics

Dataset Information

0

EXTL3ΔN purification from EXT1 CRISPR HEK


ABSTRACT: Experiment for label-free quantification of contaminants in preparations of EXTL3ΔN from transgenic HEK cells. EXTL3ΔN-expressing HEK cells were not untreated (untransfected / Batch C), treated with a set of CRISPR control plasmids (CRISPR control / Batch A), or treated with a set of CRISPR plasmids targeting EXT1 (CRISPR EXT1 / Batch B). EXTL3ΔN was then purified by HisTrap and size exclusion before analysing by mass spectrometry.

INSTRUMENT(S): Q Exactive HF

ORGANISM(S): Homo Sapiens (human)

SUBMITTER: Louis Wilson  

LAB HEAD: Paul Dupree

PROVIDER: PXD032144 | Pride | 2022-07-12

REPOSITORIES: Pride

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Publications

The structure of EXTL3 helps to explain the different roles of bi-domain exostosins in heparan sulfate synthesis.

Wilson L F L LFL   Dendooven T T   Hardwick S W SW   Echevarría-Poza A A   Tryfona T T   Krogh K B R M KBRM   Chirgadze D Y DY   Luisi B F BF   Logan D T DT   Mani K K   Dupree P P  

Nature communications 20220608 1


Heparan sulfate is a highly modified O-linked glycan that performs diverse physiological roles in animal tissues. Though quickly modified, it is initially synthesised as a polysaccharide of alternating β-D-glucuronosyl and N-acetyl-α-D-glucosaminyl residues by exostosins. These enzymes generally possess two glycosyltransferase domains (GT47 and GT64)-each thought to add one type of monosaccharide unit to the backbone. Although previous structures of murine exostosin-like 2 (EXTL2) provide insigh  ...[more]

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