Dictionary » N » Nuclear pore

Nuclear pore

Definition

noun, plural: nuclear pores

Any of the many perforations on the nucleus as a result of the assembly of nucleoporins that span the nuclear envelope


Supplement

Nuclear pores pertain to the numerous openings in the [nuclear envelope]]. They are octagonal in shape owing to the assembly of protein molecules called nucleoporins. The pore measures about 9 nm in diameter whereas the depth is about 200nm.

These openings allow the entry and exit of select biomolecules. For instance, ribonucleoproteins leave the nucleus whereas certain proteins (e.g. DNA polymerases), carbohydrates, lipids, and signaling molecules enter the nucleus through the nuclear pores.


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Re: help please 1

... do they mean by granular in this case? - The protein lattice called the nuclear lamina- What do they mean by lattice in this case? - The nuclear pore complexes that perforate the nuclear envelope- What do they mean by perforate in this ...

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by Stephen1993
Wed Feb 22, 2012 11:19 pm
 
Forum: Cell Biology
Topic: help please 1
Replies: 9
Views: 5843

Please Help with Homework (fairly easy questions)

... surrounds the contents of the nucleus is the A) plasma membrane. B) nuclear envelope. C) nuclear pore. D) cytosol. B) 11. The smooth endoplasmic reticulum A) is the site for manufacture of ...

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by billyfisher100
Wed Feb 15, 2012 6:46 pm
 
Forum: General Discussion
Topic: Please Help with Homework (fairly easy questions)
Replies: 6
Views: 30340

Please Help with Homework (fairly easy questions)

... surrounds the contents of the nucleus is the A) plasma membrane. B) nuclear envelope. C) nuclear pore. D) cytosol. 11. The smooth endoplasmic reticulum A) is the site for manufacture of lipids ...

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by WishIknewbio
Wed Feb 15, 2012 6:02 pm
 
Forum: General Discussion
Topic: Please Help with Homework (fairly easy questions)
Replies: 6
Views: 30340

Translation of proteins

... information is replicated the mRNA leaves the gene and exist via the nuclear pore and binds to the smaller sub unit of a ribosome. The ribosome then reads the information ...

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by ccBiologist
Thu Nov 03, 2011 7:09 am
 
Forum: Genetics
Topic: Translation of proteins
Replies: 1
Views: 1421

Transcription

It's the NES Nuclear Export Signal. A short amino acid sequence of 4 hydrophobic residues in a protein that targets it for export from the cell nucleus to the cytoplasm through the nuclear pore complex.

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by Batlee
Sun Mar 06, 2011 12:35 am
 
Forum: Molecular Biology
Topic: Transcription
Replies: 4
Views: 2140
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