Endomembrane system
| Parent |
| cell |
| Subordinate |
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Endoplasmic reticulum Golgi vesicle membrane nuclear envelope Retromer Coated Pit |
| Gene Ontology |
|---|
| QuickGO |
The entirety of the membrane- enclosed cell compartments which are connected to one another by vesicle transport is referred to as the endomembrane system or inner membrane system . It consists of the endoplasmic reticulum (rough and smooth), the Golgi apparatus , the plasma membrane , the outer nuclear envelope or the perinuclear space, endosomes , vacuoles , lysosomes and transport vesicles . Also peroxisomes were identified as part of the endomembrane of 2009. In contrast, mitochondria and plastids are not part of the endomembrane system.
The lumen of all these organelles is called exoplasmic , i.e. H. anything enclosed by these membranes can come out of the cell without crossing a membrane.
Within the endomembrane system, protein transport takes place via the secretory route . The proteins are cotranslationally transported across the membrane of the endoplasmic reticulum by a signal peptide . The further transport takes place via vesicles .
Individual evidence
- ^ EH Hettema, AM Motley: How peroxisomes multiply. In: Journal of Cell Science. 122, 2009, pp. 2331–2336, doi : 10.1242 / jcs.034363 , PMC 2704874 (free full text)