PXD054197-2

PXD054197 is an original dataset announced via ProteomeXchange.

Title	The FAM114A proteins are adaptors for the recycling of Golgi enzymes - Figu 2SA
Description	The 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.
HostingRepository	PRIDE
AnnounceDate	2024-10-22
AnnouncementXML	Submission_2024-10-22_06:55:36.475.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Catarina Franco
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	monohydroxylated residue; iodoacetamide derivatized residue
Instrument	Orbitrap Eclipse

Revision	Datetime	Status	ChangeLog Entry
0	2024-07-24 15:11:25	ID requested
1	2024-08-22 06:14:34	announced
⏵ 2	2024-10-22 06:55:36	announced	2024-10-22: Updated project metadata.

10.1242/JCS.262160;

submitter keyword: Golgi,FAM114A

Sean Munro
contact affiliation	Sean Munro Division of Cell Biology MRC Laboratory of Molecular Biology Francis Crick Avenue Cambridge CB2 0QH, UK
contact email	sean@mrc-lmb.cam.ac.uk
lab head
Catarina Franco
contact affiliation	MRC Laboratory of Molecular Biology
contact email	cffranco@mrc-lmb.cam.ac.uk
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD054197
     1. Label: PRIDE project
     2. Name: The FAM114A proteins are adaptors for the recycling of Golgi enzymes - Figu 2SA