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PXD054030

PXD054030 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleThe FAM114A proteins are adaptors for the recycling of Golgi enzymes
DescriptionThe Golgi apparatus contains many resident enzymes that must remain in place whilst their substrates flow through on their journey from the endoplasmic reticulum to elsewhere in the cell. COPI-coated vesicles bud from the rims of the Golgi stack to recycle Golgi residents to earlier cisternae. Different enzymes are present in different parts of the stack, and at least one COPI adaptor protein, GOLPH3, has been shown to recruit enzymes into vesicles in a specific part of the stack. We have used proximity biotinylation to identify further components of intra-Golgi transport vesicles and found FAM114A2, an uncharacterised cytosolic protein. Affinity chromatography with FAM114A2, and its paralogue FAM114A1 showed that they bind to numerous Golgi resident proteins, with membrane-proximal basic residues in the cytoplasmic tail being sufficient for the interaction. Deletion of both proteins from U2OS cells did not result in substantial defects in Golgi function. However, a Drosophila orthologue of these proteins (CG9590/FAM114A) is also localised to the Golgi and binds directly to COPI. Generation of Drosophila mutants lacking FAM114A revealed defects in glycosylation of glue proteins in the salivary gland. Thus, the FAM114A proteins are COPI vesicle resident proteins that bind to Golgi enzymes and so are candidate adaptors to contribute specificity to COPI vesicle recycling in the Golgi stack.
HostingRepositoryPRIDE
AnnounceDate2024-08-22
AnnouncementXMLSubmission_2024-08-22_06:09:00.381.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterCatarina Franco
SpeciesList scientific name: Cicer arietinum (Chickpea) (Garbanzo); NCBI TaxID: 3827; scientific name: Dictyostelium discoideum (Slime mold); NCBI TaxID: 44689; scientific name: Danio rerio (Zebrafish) (Brachydanio rerio); NCBI TaxID: 7955; scientific name: Drosophila melanogaster (Fruit fly); NCBI TaxID: 7227;
ModificationListiodoacetamide derivatized residue
InstrumentQ Exactive
Dataset History
RevisionDatetimeStatusChangeLog Entry
02024-07-18 02:29:40ID requested
12024-08-22 06:09:00announced
Publication List
10.1242/JCS.262160;
Keyword List
submitter keyword: FAM114A
Contact List
Sean Munro
contact affiliationMRC Laboratory of Molecular Biology Division of Cell Biology Francis Crick Avenue Cambridge CB2 0QH, UK
contact emailsean@mrc-lmb.cam.ac.uk
lab head
Catarina Franco
contact affiliationMRC Laboratory of Molecular Biology
contact emailcffranco@mrc-lmb.cam.ac.uk
dataset submitter
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