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Gene Review

SUN1  -  Sad1 and UNC84 domain containing 1

Homo sapiens

Synonyms: FLJ12407, KIAA0810, Protein unc-84 homolog A, SUN domain-containing protein 1, Sad1/unc-84 protein-like 1, ...
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Disease relevance of UNC84A


High impact information on UNC84A

  • Sun protein (Sun1 and Sun2) cDNAs were previously cloned based on the homology of their C-terminal regions (SUN (Sad1 and UNC) domain) with the Caenorhabditis elegans protein UNC-84 whose mutation disrupts nuclear migration/positioning [2].
  • Application of exogenous SA restores PR gene expression, indicating that SUN1 acts upstream of SA [3].
  • We have analyzed targeting of UNC84A to the nuclear envelope (NE) and show that the N-terminal 300 amino acids are crucial for efficient NE localization of UNC84A whereas the conserved C-terminal SUN domain is not required [4].
  • Furthermore, we demonstrate by combining RNA interference with immunofluorescence and fluorescence recovery after photobleaching analysis that localization and anchoring of UNC84A is not dependent on the lamin proteins, in contrast to what had been observed for C. elegans UNC-84 [4].
  • In our series of projects for accumulating sequence information on the coding sequences of unidentified human genes, we have newly determined the sequences of 100 cDNA clones from a set of size-fractionated human brain cDNA libraries, and predicted the coding sequences of the corresponding genes, named KIAA0711 to KIAA0810 [5].

Anatomical context of UNC84A


  1. Superiority of closed suction drainage for pancreatic trauma. A randomized, prospective study. Fabian, T.C., Kudsk, K.A., Croce, M.A., Payne, L.W., Mangiante, E.C., Voeller, G.R., Britt, L.G. Ann. Surg. (1990) [Pubmed]
  2. Sun2 is a novel mammalian inner nuclear membrane protein. Hodzic, D.M., Yeater, D.B., Bengtsson, L., Otto, H., Stahl, P.D. J. Biol. Chem. (2004) [Pubmed]
  3. EDS1 in tomato is required for resistance mediated by TIR-class R genes and the receptor-like R gene Ve. Hu, G., deHart, A.K., Li, Y., Ustach, C., Handley, V., Navarre, R., Hwang, C.F., Aegerter, B.J., Williamson, V.M., Baker, B. Plant J. (2005) [Pubmed]
  4. Nuclear envelope localization of human UNC84A does not require nuclear lamins. Hasan, S., Güttinger, S., Mühlhäusser, P., Anderegg, F., Bürgler, S., Kutay, U. FEBS Lett. (2006) [Pubmed]
  5. Prediction of the coding sequences of unidentified human genes. XI. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro. Nagase, T., Ishikawa, K., Suyama, M., Kikuno, R., Miyajima, N., Tanaka, A., Kotani, H., Nomura, N., Ohara, O. DNA Res. (1998) [Pubmed]
  6. Characterization of the structures involved in localization of the SUN proteins to the nuclear envelope and the centrosome. Wang, Q., Du, X., Cai, Z., Greene, M.I. DNA Cell Biol. (2006) [Pubmed]
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