3 because dna is found in the nucleus transcription is a...

3. Because DNA is found in the nucleus, transcription is a nuclear-localized process. Ribosomes responsible for protein synthesis are found in the cytoplasm. Why is hnRNP trafficking to the cytoplasm restricted to the nuclear pore complexes? 4. A protein complex in the nucleus is responsible for transporting mRNA molecules into the cytoplasm. Describe the proteins that form this exporter. What two protein groups are probably behind the mechanism involved in the directional movement of the mRNP and exporter into the cytosol?

Transcript

00:01 Question 3 discusses about the nuclear export of molecules which is called as the messenger ribonucic acid that can be returned as mrna.

00:11 So this messenger ribonucleic acid in turn requires the role of certain proteins which is called as npcs.

00:19 Npcs can be abbreviated as nuclear core complex.

00:23 This is the one which will help the mrna to be transported from nucleus to that of the cytos, and this in turn can be seen in the nuclear envelope of a particular neutrious.

00:35 So this mrna in turn can be transported by a in the form of a structure that is called as hachenr &p, meaning heterogeneous ribonuclear protein.

00:48 The hatchen r &p trafficking is restricted to this nuclear pore complex because of the selective transport of molecule across the nuclear envelope, that is small molecule.

01:00 The molecules which are referred as small molecules can be of diameter.

01:05 That is only 9 nanometer in diameter.

01:08 Let's denote d for the diameter diameter.

01:11 And then it should be 45 nanometer in length, which can be denoted as l.

01:17 So these are the molecules which are considered to be small molecules.

01:20 And these are the ones which can be easily diffusable across the nuclear envelope.

01:26 And there are other molecules which are larger than this.

01:30 For example, molecules which are larger than 25 nanometer are in turn considered to be the larger molecules and they in turn require the assistance of nuclear pore complex.

01:41 So this intern allows the segregation of molecules as small and then large.

01:46 So this intern facilitates the hatchen r &p trafficking via this nuclear pore complex.

01:52 And question for intern discusses about the concept of proton which is involved in the process of export...

Question

Please give Ace some feedback