• Source: SUN domain

SUN (Sad1p, UNC-84) domains are conserved C-terminal protein regions a few hundred amino acids long. SUN domains are usually found following a transmembrane domain and a less conserved region of amino acids. Most proteins containing SUN domains are thought to be involved in the positioning of the nucleus in the cell. It is thought that SUN domains interact directly with KASH domains in the space between the outer and inner nuclear membranes to bridge the nuclear envelope and transfer force from the nucleoskeleton to the cytoplasmic cytoskeleton which enables mechanosensory roles in cells. SUN proteins are thought to localize to the inner nuclear membrane. The S. pombe Sad1 protein localises at the spindle pole body. In mammals, the SUN domain is present in two proteins, Sun1 and Sun2. The SUN domain of Sun2 has been demonstrated to be in the periplasm.




Examples of SUN proteins


Caenorhabditis elegans

SUN-1/matefin
UNC-84
Drosophila melanogaster

Klaroid
Spag4
Mammals

SUN1, SUN2, SUN3, SUN4, SUN5
Schizosaccharomyces pombe

Sad1p
Saccharomyces cerevisiae

Mps3p
Maize

SUN1, SUN2, SUN3, SUN4, SUN5
Arabidopsis

SUN1, SUN2




References

Kata Kunci Pencarian:

• Dreamin' Sun
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• Lionel Giles
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• The Unparalleled Adventure of One Hans Pfaall
• Jepang selama Perang Dunia I
• USS Chenango (CVE-28)
• SUN domain
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• Sun Quan
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