PXD035142

PXD035142 is an original dataset announced via ProteomeXchange.

Title	Human UFSP1 is an active protease that regulates UFM1 maturation and UFMylation
Description	An essential first step in the posttranslational modification of proteins with UFM1, UFMylation, is the proteolytic cleavage of pro-UFM1 to expose a C-terminal glycine. Of the two UFM1-specific proteases (UFSPs) identified in humans, only UFSP2 is reported to be active since the annotated sequence of UFSP1 lacks critical catalytic residues. Nonetheless, efficient UFM1 maturation occurs in cells lacking UFSP2 suggesting the presence of another active protease. We hereby identify UFSP1 translated from a non-canonical start site to be this protease. Cells lacking both UFSPs show complete loss of UFMylation resulting from an absence of mature UFM1. While UFSP2, but not UFSP1, removes UFM1 from the ribosomal subunit RPL26, UFSP1 acts earlier in the pathway to mature UFM1 and cleave a potential auto-inhibitory modification on UFC1, thereby controlling activation of UFMylation. In summary, our studies reveal distinctions in substrate specificity and localization-dependent functions for the two proteases in regulating UFMylation. The present dataset includes Data Independent Acquisition (DIA) quantitative proteomics analysis of knockout cell lines reported in our study. Our analysis of the processed data is presented in Figure-6.
HostingRepository	PRIDE
AnnounceDate	2022-08-22
AnnouncementXML	Submission_2022-08-22_04:06:03.262.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Frederic Lamoliatte
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	No PTMs are included in the dataset
Instrument	Orbitrap Exploris 480

Revision	Datetime	Status	ChangeLog Entry
0	2022-07-07 00:53:12	ID requested
⏵ 1	2022-08-22 04:06:03	announced

Millrine D, Cummings T, Matthews SP, Peter JJ, Magnussen HM, Lange SM, Macartney T, Lamoliatte F, Knebel A, Kulathu Y, Human UFSP1 is an active protease that regulates UFM1 maturation and UFMylation. Cell Rep, 40(5):111168(2022) [pubmed]

submitter keyword: UFM1, Cysteine Protease, Endoplasmic Reticulum (ER), Ribosome, ubiquitin like modifier

Yogesh Kulathu
contact affiliation	Medical Research Council Protein Phosphorylation and Ubiquitylation Unit School of Life Sciences, University of Dundee, Dundee, Scotland
contact email	y.kulathu@dundee.ac.uk
lab head
Frederic Lamoliatte
contact affiliation	University of Dundee
contact email	flamoliatte001@dundee.ac.uk
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD035142
     1. Label: PRIDE project
     2. Name: Human UFSP1 is an active protease that regulates UFM1 maturation and UFMylation