GTP-binding protein

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Image:2nzj.png
Crystal Structure of GTP-binding protein Rem1 tetramer complex with nucleotide 2nzj

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GTP-binding proteins or G proteins are transmitting signals outside the cell which cause changes within the cell. They act as molecular switches which are on when binding GTP and off when binding GDP. GTP-binding proteins belong to two families: heterotrimeric G proteins and small GTPases. See details on GTP-binding protein LpeD in LepA.


 

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An activated G protein-coupled receptor (human β-2 adrenergic receptor in blue ) in a complex with a heterotrimeric G protein (3 subunits:reddish to orange-brown) and hormone (gold) (3sn6), resolution 3.2Å. The boundaries of the membrane in which the GPCR sits are represented in light green.



3D Structures of GTP-binding protein

Updated on 26-November-2014


See Also

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