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(Structure)
(Interactions)
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==Interactions==
==Interactions==
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The zinc-fingers usually interact with the outside of B-DNA. When interacting with DNA, the zinc fingers bind in the major groove of B-DNA and wrap part way around the double helix.
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Zinc fingers are found in eukaryotic nucleus interacting with the outside of B-DNA. When interacting with DNA, the zinc fingers bind in the major groove of B-DNA and wrap part way around the double helix.
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==References==
==References==

Revision as of 21:15, 8 February 2017

Contents

Zinc-finger 1

Here is a view of the 1zaa structure

Drag the structure with the mouse to rotate

Origin

Zinc fingers were first identified in a study of transcription in the transcription factor TFIIIA of the African clawed frog, Xenopus laevis, conducted in Aaron Klug's lab.


Structure

The “finger” refers to the secondary structures ( and ) that are held together by the .


Function

This small protein motif is a transcriptional regulator. It recognizes and binds to the DNA sequence 5'-CGCCCCCGC-3'(EGR-site). Activates the transcription of target genes whose products are required for mitogenesis and differentiation. regulate eukaryotic gene expression


Interactions

Zinc fingers are found in eukaryotic nucleus interacting with the outside of B-DNA. When interacting with DNA, the zinc fingers bind in the major groove of B-DNA and wrap part way around the double helix.

References

Zinc Fingers. (n.d.). Retrieved February 08, 2017, from http://www.ebi.ac.uk/interpro/potm/2007_3/Page2.htm

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC554390/

http://epigenie.com/key-epigenetic-players/chromatin-modifying-and-dna-binding-proteins/zinc-finger-proteins/

http://www.rcsb.org/pdb/explore.do?structureId=1ZAA

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