Newly synthesized and secretory membrane proteins transfer into the endoplasmic reticulum for modification.
Microtubules are involved in the maintenance of cell shape, translocation of cytoplasmic organelles, and secretory and signal transfer processes.
The plant immune system uses secretory vesicles to transfer defense-related cargoes toward the plasma membrane at the site of pathogen invasion [ 51].
In mammalian cells protein-lipid interactions at the trans-Golgi network (TGN) determine the formation of vesicles, which transfer secretory proteins to the cellular membrane.
To follow VSVG transport through the secretory pathway, cells were transferred to 37°C and at different times of chase they were fixed with 4% paraformaldehyde and imaged using confocal microscopy.
Intercellular communication plays an essential role in multicellular organisms and can be mediated through direct cell cell contact or through the transfer of secretory molecules.
In common with the Drosophila Acps, our Anopheles candidates are over-represented in the top 10% of intensity values recorded for the accessory gland (χ2 = 9.45; d.f.= 1; P < 0.003), and many contain secretory domains necessary for transfer to females.
Our work thus suggests that appressoria and infectious hyphae are not only involved in plant penetration, they may also act as secretory organs for the transfer of cytoplasmic effectors into the host.
It is likely that type-2 cystatins containing the secretory leader peptide are transferred to the extracellular space through exocytotic (or secretory) vesicles that originate from the endoplasmic reticulum Golgi complex.
This 73-kb region on the UT26 first chromosome contains the integrase, relaxase, and recombination directionality factor required for excision and integration of the region (Ramsay et al. 2006), as well as a type IV secretory system that conjugatively transfers the excised element between cells.
If lung injury persists, epithelial cells undergo a phenotypic transformation to become myofibroblast-like and secrete an ECM composed of various proteins, such as collagen type I. Collagen is a secretory protein that is transferred to the Golgi and secreted into the ECM; collagen accumulation in the ECM is considered a direct mechanism of IPF.
