Nuclear membrane

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The nuclear envelope is a double layer of membrane, with pores that are protein complexes.
Detail of the nuclear envelope structure

The nuclear membrane is the membrane inside a cell that has the nucleus and nucleolus inside.[1][2][3] It forms a double layer, which is called the nuclear envelope.[4] It is connected to another group of membranes in the cell, the endoplasmic reticulum.

It is a double lipid bilayer membrane which surrounds the chromosomes and nucleolus in eukaryotic cells.[3]

The nuclear membrane has thousands of nuclear pores – large hollow proteins about 100 nm across, with an inner channel about 40 nm wide.[4] They link the inner and outer nuclear membranes.

During cell division, the nuclear membrane breaks down to allow mitosis to take place.

References[change | change source]

  1. "Nuclear membrane". Biology Dictionary. Biology Online. http://www.biology-online.org/dictionary/Nuclear_membrane. Retrieved 7 December 2012.
  2. "nuclear membrane". Merriam Webster. http://www.merriam-webster.com/dictionary/nuclear%20membrane. Retrieved 7 December 2012.
  3. 3.0 3.1 "The inner nuclear membrane: simple, or very complex?". The EMBO Journal. April 19, 2001. http://www.nature.com/emboj/journal/v20/n12/full/7593796a.html. Retrieved 7 December 2012.
  4. 4.0 4.1 Hetzer, Mertin (2012). "The Nuclear Envelope". National Center for Biotechnology Information. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2829960/. Retrieved 7 December 2012.