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Mia3 enables efficient secretion by constraining COPII vesicle budding - cell derived matrix

ABSTRACT: Following knockout of Mia3 encoding both TANGO1S and TANGO1L we have analysed the extracellular matrix deposited by these cells using TMT mass spectrometry.

INSTRUMENT(S): Orbitrap Fusion Lumos

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Epithelial Cell

SUBMITTER: David Stephens

LAB HEAD: David Stephens

PROVIDER: PXD024214 | Pride | 2021-08-25

REPOSITORIES: Pride

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A general role for TANGO1, encoded by MIA3, in secretory pathway organization and function.

McCaughey Janine J Stevenson Nicola L NL Mantell Judith M JM Neal Chris R CR Paterson Alex A Heesom Kate K Stephens David J DJ

Journal of cell science 20210907 17

Complex machinery is required to drive secretory cargo export from the endoplasmic reticulum (ER), which is an essential process in eukaryotic cells. In vertebrates, the MIA3 gene encodes two major forms of transport and Golgi organization protein 1 (TANGO1S and TANGO1L), which have previously been implicated in selective trafficking of procollagen. Using genome engineering of human cells, light microscopy, secretion assays, genomics and proteomics, we show that disruption of the longer form, TA ...[more]

PMID: 34350936

Similar Datasets

Mia3 enables efficient secretion by constraining COPII vesicle budding - secreted proteome

Project description:Analysis of secreted proteome from cells engineered with knockout of Mia3 gene isoforms encoding TANGO1L and TANGO1S

2021-08-25 | PXD024221 | Pride

Placental macrophage (Hofbauer cell) response to viral and bacterial ligands is influenced by fetal sex

Project description:Bacterial and viral infections of the placenta are associated with inflammation and adverse pregnancy outcomes. Hofbauer cells (HBCs) are specialised fetal-origin macrophages in the placental villi and are proposed to protect the fetus from vertical transmission of pathogens; however, they are poorly understood. Here, we have performed quantitative proteomics on term HBCs under resting conditions and following exposure to bacterial and viral pathogen associated molecular patterns (PAMPs), and investigated the contribution of fetal sex to these responses. Resting HBCs expressed a plethora of proteins pertinent to macrophage function, including chemokines, cytokines, Toll-like receptors, and classical and non-classical major histocompatibility complex class I and II molecules. HBCs mounted divergent responses to bacterial versus viral PAMPs but exhibited protein expression changes suggestive of a switch towards a more pro-inflammatory phenotype. A comparison between male and female HBCs, showed that the latter mounted a much stronger and wider response. Sexual dimorphism in HBCs was primarily associated with lipid metabolism in males and cytoskeleton organisation in females. We provide a novel and comprehensive understanding regarding the phenotype of term placental macrophages and their sex-dependent responses to infectious triggers.

2022-10-31 | PXD033006 | Pride

Enhancement of red blood cell transfusion compatibility using CRISPR-mediated erythroblast gene editing

Project description:Regular blood transfusion is the cornerstone of care for patients with red blood cell (RBC) disorders such as thalassemia or sickle cell disease. With repeated transfusion, alloimmunisation often occurs due to incompatibility at the level of minor blood group antigens. We use CRISPR-mediated genome editing of an immortalised human erythroblast cell line (BEL-A) to generate multiple enucleation competent cell lines deficient in individual blood groups. Edits are combined to generate a single cell line deficient in multiple antigens responsible for the most common transfusion incompatibilities: ABO (Bombay phenotype), Rh (Rhnull), Kell (K0), Duffy (Duffynull), GPB (S- s- U-). These cells can be differentiated to generate deformable reticulocytes, illustrating the capacity for coexistence of multiple rare blood group antigen null phenotypes. This study provides the first proof-of-principle demonstration of combinatorial CRISPR-mediated blood group gene editing to generate customisable or multi-compatible RBCs for diagnostic reagents or recipients with complicated matching requirements.

2018-04-26 | PXD009291 | Pride

Molecular identification of a BAR domain-containing coat complex for endosomal recycling of transmembrane proteins

Project description:Protein trafficking requires coat complexes that couple recognition of sorting motifs in transmembrane cargos with biogenesis of transport carriers. The mechanisms of cargo transport through the endosomal network are poorly understood. Here, we identify a sorting motif for endosomal recycling of cargos including the cation-independent mannose-6-phosphate receptor and semaphorin 4C by the membrane tubulating BAR domain-containing sorting nexins SNX5 and SNX6. Crystal structures establish that this motif folds into a β-hairpin that binds a site in the SNX5/SNX6 phox homology domains. Over sixty cargos share this motif and require SNX5/SNX6 for their recycling. These include cargos involved in neuronal migration and a Drosophila snx6 mutant displays defects in axonal guidance. These studies identify a sorting motif and provide molecular insight into an evolutionary conserved coat complex, the ‘Endosomal SNX-BAR sorting complex for promoting exit 1’ (ESCPE-1), which couples sorting motif recognition to BAR domain-mediated biogenesis of cargo-enriched tubulo-vesicular transport carriers.

2021-05-28 | PXD014927 | Pride

Characterisation of proteome of a novel Escherichia coli strain exhibiting mucoviscous phenotype.

Project description:Protein expression by E. coli 26561 during the late-exponential phase of cultures under anaerobic conditions was examined. E. coli 26561 is a multidrug resistant (MDR) and shows an unusual hyper-mucoviscous phenotype. Resistance includes ESBL (CTX-M-14) and proteome was determined with and without exposure to sub-MIC concentrations of the 3rd generation cephalosporin ceftazidime. Ceftazidime exposure was at two sub-MIC levels, specifically 0.25x MIC (samples 5-7), 0.5x MIC (samples 8 - 10); samples 1-4 provided the unexposed Control. Both whole and phospho-enriched fractions for each sample were analysed. Quantification of peptides was assessed using 10-plex TMT labelling in conjunction with an Orbitrap Fusion Tribrid. Raw data produced by the Orbitrap were processed using Max Quant 1.5.4.7 using the included Andromeda search engine. Peptides were searched against our own database of E. coli 26561 proteins which was produced from a hybrid assembly of our reads obtained from MiSeq and PacBio sequencing platforms.

2018-08-22 | PXD008339 | Pride

ChAdOx infection of human cell lines A549 MRC-5

Project description:Total proteome and phospho proteome of two human cell lines infected with the ChAdOx1 nCoV-19 virus over 72 hours

2021-01-11 | PXD023286 | Pride

Multiomic Approach Characterises the Neuroprotective Role of Retromer in Regulating Lysosomal Health

Project description:Retromer controls cellular homeostasis through regulating integral membrane protein sorting and transport and by controlling late-stage maturation of the endo-lysosomal network. Retromer dysfunction, which is linked to neurodegenerative disorders including Parkinson’s and Alzheimer’s diseases, manifests in complex cellular phenotypes, though the precise nature of this dysfunction, and its relation to neurodegeneration, remain unclear. Here, we perform the first integrated multiomics approach to provide precise insight into the impact of Retromer dysfunction on endo-lysosomal health and homeostasis within a human neuroglioma cell model. We quantify profound changes to the lysosomal proteome, indicative of broad lysosomal dysfunction and inefficient autophagic lysosome reformation, coupled with a reconfigured cell surface proteome and secretome reflective of increased lysosomal exocytosis. Through this global proteomic approach and parallel transcriptomic analysis, we provide an unprecedented integrated view of Retromer function in regulating lysosomal homeostasis and emphasise its role in neuroprotection.

2023-07-20 | PXD041323 | Pride

Chemical degradation of BTK/TEC as a novel approach to inhibit platelet function.

Project description:Determination of the effect of the generic tyrosine kinase degrader TL12-186, and the BTK degraders DD-04-15 and DD-03-171 on human platelet protein content and function.

2023-03-02 | PXD034440 | Pride

Analysis of oak stem lesions in Acute Oak Decline using shotgun proteomics

Project description:Acute Oak Decline (AOD) is a decline-disease currently spreading in Britain, threatening oak trees. Here, we analyze and compare the proteomes of inner bark tissue sampled from oak stems of trees symptomatic with AOD and non-symptomatic trees.

2018-02-07 | PXD004991 | Pride

¬¬Identifying the cellular interactome of Epstein-Barr virus lytic regulator Zta reveals cellular targets contributing to viral replication.

Project description:The human gamma herpesvirus Epstein-Barr virus, infects most adults and is an important contributor to the development of many types of cancer. Essential contributions of viral genes to replication are known but the potential contributions of cell genes to viral replication are less well delineated. A key player is the viral protein Zta (BZLF1, ZEBRA, Z). This sequence-specific DNA-binding protein can disrupt viral latency by driving the transcription of target genes and by interacting with the EBV lytic origin of replication. Here we used an unbiased approach to identify the Zta-interactome in cells derived from a Burkitt’s lymphoma. Isolating Zta and associated proteins from Burkitt’s lymphoma cells undergoing EBV replication, followed by Tandem Mass Tag (TMT) mass spectrometry resulted in the identification of forty-four viral and cellular proteins in the Zta interactome. Of these two were known targets of Zta. The association of Zta with Hsc70 and the contribution that Hsc70 plays to EBV replication mirrors a contribution from HSP70 family members to the replication of other herpesviruses. Conversely, the association of Zta with NFATc2 has no known parallels for other herpesviruses. Zta attenuates the activity of an NFAT-dependent promoter, which shows a potential for dampening the expression of genes regulated by calcium-dependent signal transduction. Indeed, Zta has the ability to affect a feed-back loop limiting its own expression, which would aid viral replication by preventing the toxic effects of Zta overexpression.

2019-06-06 | PXD013727 | Pride

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