Transport of molecules within a cell and out of the cell requires a complex endomembrane system. Endocytosis occurs when the cell membrane engulfs particles (dark blue) outside the cell ...

Researchers from the Göttingen Cluster of Excellence Multiscale Bioimaging (MBExC) have uncovered the 3D structure of the ...

A plasma membrane is permeable to specific molecules that a cell needs. Transport proteins in the cell membrane allow for selective passage of specific molecules from the external environment.

This takes place when molecules diffuse across the cell membrane by travelling through specific transport proteins. It occurs down a concentration gradient - molecules move from an area of high to ...

The cell model of ion-exchange membranes reveals violations of the Onsager reciprocity principle, particularly at high ...

Kaback and his colleagues recently captured the three-dimensional structure of lactose permease (LacY), which moves lactose across the cell membrane ... how other membrane transport proteins ...

The scientists have thus artificially produced specific nanobodies for a membrane transporter and use them to directly report on its structure. ''Inserted into E. coli cells, two nanobodies target ...

Their ports of entry are sophisticated transport channels embedded ... All living cells are enveloped in a unique biological structure, the cell membrane. The science-y term for such membranes ...

However, we felt that the transport mechanism that was proposed based on this structure ... the cells, to 'fuel' the conformational change, which opens up a tunnel to the interior of the membrane.

They are very closely associated and show both similarities and differences in structure ... membrane-enclosed sacs and tubules. It has such a physically wide reach that in most eukaryotic cells ...

To move, these migratory cells rely on filopodia—sensitive, finger-like protrusions that reach out from the cell membrane ...