Thepossible mechanism by which a 75kD nuclear protein is imported into teh nucleus includes. In eukaryotic cells the nucleus is physically separated from the cytoplasm by a double membrane structure, the nuclear envelope (NE). The NE is crossed by multiple supramolecular structures specialized in mediating the bidirectional traffic of molecules between the nucleus and the cytoplasm. These structures are designated the nuclear pore complex (NPC), (Freitas, 2009). Thus the nuclear pore complex (NPC), perhaps the largest protein complex in the cell, is responsible for the protected exchange of components between the nucleus and cytoplasm and for preventing the transport of material not destined to cross the nuclear envelope(UIUC). Transport Cycle.In order to pass through the NPC, a large molecule (cargo) i.e. theteh cargo proteinmust associate with another protein called a transport receptor. These transport receptors then act as chaperones which shuttle cargo through the NPC. Recognition by the transport receptor takes place via a specific sequence of amino acids in the cargo protein. Besides cargo and transport receptors, the third ingredient necessary for nuclear transport is the signaling protein Ran, which hydrolyzes GTP. Ran is responsible for regulating the interaction of transport receptor and cargo and RanGDP/RanGTP concentration gradients across the nuclear envelope drive nuclear import and export. Once a transport receptor identifies and binds its cargo, the transport complex may be imported or exported through the NPC. Repeating amino acid sequences involving phenyalanine (F) and glycine (G) have been thoroughly implicated in the process selective import,(UIUC). Solution Thepossible mechanism by which a 75kD nuclear protein is imported into teh nucleus includes. In eukaryotic cells the nucleus is physically separated from the cytoplasm by a double membrane structure, the nuclear envelope (NE). The NE is crossed by multiple supramolecular structures specialized in mediating the bidirectional traffic of molecules between the nucleus and the cytoplasm. These structures are designated the nuclear pore complex (NPC), (Freitas, 2009). Thus the nuclear pore complex (NPC), perhaps the largest protein complex in the cell, is responsible for the protected exchange of components between the nucleus and cytoplasm and for preventing the transport of material not destined to cross the nuclear envelope(UIUC). Transport Cycle.In order to pass through the NPC, a large molecule (cargo) i.e. theteh cargo proteinmust associate with another protein called a transport receptor. These transport receptors then act as chaperones which shuttle cargo through the NPC. Recognition by the transport receptor takes place via a specific sequence of amino acids in the cargo protein. Besides cargo and transport receptors, the third ingredient necessary for nuclear transport is the signaling protein Ran, which hydrolyzes GTP. Ran is responsible for regulating the inter.

1. Thepossible mechanism by which a 75kD nuclear protein is imported into teh nucleus includes.
In eukaryotic cells the nucleus is physically separated from the cytoplasm by a double membrane
structure, the nuclear envelope (NE). The NE is crossed by multiple supramolecular structures
specialized in mediating the bidirectional traffic of molecules between the nucleus and the
cytoplasm. These structures are designated the nuclear pore complex (NPC), (Freitas, 2009).
Thus the nuclear pore complex (NPC), perhaps the largest protein complex in the cell, is
responsible for the protected exchange of components between the nucleus and cytoplasm and
for preventing the transport of material not destined to cross the nuclear envelope(UIUC).
Transport Cycle.In order to pass through the NPC, a large molecule (cargo) i.e. theteh cargo
proteinmust associate with another protein called a transport receptor. These transport receptors
then act as chaperones which shuttle cargo through the NPC. Recognition by the transport
receptor takes place via a specific sequence of amino acids in the cargo protein. Besides cargo
and transport receptors, the third ingredient necessary for nuclear transport is the signaling
protein Ran, which hydrolyzes GTP. Ran is responsible for regulating the interaction of transport
receptor and cargo and RanGDP/RanGTP concentration gradients across the nuclear envelope
drive nuclear import and export. Once a transport receptor identifies and binds its cargo, the
transport complex may be imported or exported through the NPC. Repeating amino acid
sequences involving phenyalanine (F) and glycine (G) have been thoroughly implicated in the
process selective import,(UIUC).
Solution
Thepossible mechanism by which a 75kD nuclear protein is imported into teh nucleus includes.
In eukaryotic cells the nucleus is physically separated from the cytoplasm by a double membrane
structure, the nuclear envelope (NE). The NE is crossed by multiple supramolecular structures
specialized in mediating the bidirectional traffic of molecules between the nucleus and the
cytoplasm. These structures are designated the nuclear pore complex (NPC), (Freitas, 2009).
Thus the nuclear pore complex (NPC), perhaps the largest protein complex in the cell, is
responsible for the protected exchange of components between the nucleus and cytoplasm and
for preventing the transport of material not destined to cross the nuclear envelope(UIUC).
Transport Cycle.In order to pass through the NPC, a large molecule (cargo) i.e. theteh cargo
proteinmust associate with another protein called a transport receptor. These transport receptors
then act as chaperones which shuttle cargo through the NPC. Recognition by the transport
receptor takes place via a specific sequence of amino acids in the cargo protein. Besides cargo
and transport receptors, the third ingredient necessary for nuclear transport is the signaling

2. protein Ran, which hydrolyzes GTP. Ran is responsible for regulating the interaction of transport
receptor and cargo and RanGDP/RanGTP concentration gradients across the nuclear envelope
drive nuclear import and export. Once a transport receptor identifies and binds its cargo, the
transport complex may be imported or exported through the NPC. Repeating amino acid
sequences involving phenyalanine (F) and glycine (G) have been thoroughly implicated in the
process selective import,(UIUC).