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Nuclear envelope

Nuclear envelope
Human cell nucleus
Identifiers
THH1.00.01.2.01001
FMA63888
Anatomical terminology

The nuclear envelope, also known as the nuclear membrane,[1][a] is made up of two lipid bilayer membranes that in eukaryotic cells surround the nucleus, which encloses the genetic material.

The nuclear envelope consists of two lipid bilayer membranes: an inner nuclear membrane and an outer nuclear membrane.[4] The space between the membranes is called the perinuclear space. It is usually about 10–50 nm wide.[5][6] The outer nuclear membrane is continuous with the endoplasmic reticulum membrane.[4] The nuclear envelope has many nuclear pores that allow materials to move between the cytosol and the nucleus.[4] Intermediate filament proteins called lamins form a structure called the nuclear lamina on the inner aspect of the inner nuclear membrane and give structural support to the nucleus.[4]

  1. ^ Georgia State University. "Cell Nucleus and Nuclear Envelope". gsu.edu. Archived from the original on 2018-06-18. Retrieved 2014-01-21.
  2. ^ "Nuclear membrane". Biology Dictionary. Biology Online. Retrieved 7 December 2012.
  3. ^ "nuclear membrane". Merriam Webster. Retrieved 7 December 2012.
  4. ^ a b c d Alberts, Bruce (2002). Molecular biology of the cell (4th ed.). New York [u.a.]: Garland. p. 197. ISBN 978-0815340720.
  5. ^ "Perinuclear space". Dictionary. Biology Online. Retrieved 7 December 2012.
  6. ^ Berrios, Miguel, ed. (1998). Nuclear structure and function. San Diego: Academic Press. p. 4. ISBN 9780125641555.


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