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Once the phosphodiester has been formed the lysosomal enzyme will be translocated through the Golgi apparatus to the trans-Golgi. In the trans-Golgi a phosphodiesterase (EC 3.1.4.45) will remove the GlcNAc residue exposing the mannose 6-phosphate tag, allowing the lysosomal enzymes to bind to the CI-MPR and the CD
As a sorting receptor on the cell surface and on the endoplasmic reticulum-Golgi apparatus within the cell, sortilin is involved in the transport of a wide variety of intracellular proteins between the trans-Golgi network, endosome, lysosome, and secretory granules, as well as the plasma membrane. [8]
n/a Ensembl ENSG00000152291 n/a UniProt O43493 n/a RefSeq (mRNA) NM_006464 NM_001206840 NM_001206841 NM_001206844 NM_001368095 NM_001368096 n/a RefSeq (protein) NP_001193769 NP_001193770 NP_001193773 NP_006455 NP_001355024 NP_001355025 n/a Location (UCSC) Chr 2: 85.32 – 85.33 Mb n/a PubMed search n/a Wikidata View/Edit Human Trans-Golgi network integral membrane protein 2 is a protein that ...
Once appropriately marked with the M6P targeting signal, these proteins are moved to the trans-Golgi network. There, the M6P moiety is recognized and bound by mannose 6-phosphate receptor (MPR) proteins at pH 6.5–6.7. [1] The M6P-tagged lysosomal enzymes are shipped to the late endosomes via vesicular transport. [1]
Protein targeting or protein sorting is the biological mechanism by which proteins are transported to their appropriate destinations within or outside the cell. [ 1 ] [ 2 ] [ note 1 ] Proteins can be targeted to the inner space of an organelle , different intracellular membranes , the plasma membrane , or to the exterior of the cell via secretion .
Retromer is a complex of proteins that has been shown to be important in recycling transmembrane receptors from endosomes to the trans-Golgi network (TGN) and directly back to the plasma membrane. Mutations in retromer and its associated proteins have been linked to Alzheimer's and Parkinson's diseases.
The Golgi complex plays a key role in the sorting and modification of proteins exported from the endoplasmic reticulum. The protein encoded by this gene is a type II Golgi transmembrane protein. It processes protein synthesized in the rough endoplasmic reticulum and assists in the transport of protein cargo through the Golgi apparatus.
The PACS-1 protein has a putative role in the localization of trans-Golgi network (TGN) membrane proteins. Mouse and rat homologs have been identified and studies of the homologous rat protein indicate a role in directing TGN localization of furin by binding to the protease's phosphorylated cytosolic domain.