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Aliases SEPT5, CDCREL, CDCREL-1, CDCREL1, H5, HCDCREL-1, PNUTL1, septin 5
External IDs MGI: 1195461 HomoloGene: 74446 GeneCards: SEPT5
RNA expression pattern
PBB GE SEPT5 209767 s at fs.png

PBB GE SEPT5 209768 s at fs.png
More reference expression data
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC) Chr 22: 19.71 – 19.72 Mb Chr 16: 18.62 – 18.63 Mb
PubMed search [1] [2]
View/Edit Human View/Edit Mouse

Septin-5 is a protein that in humans is encoded by the SEPT5 gene.[3][4][5]


This gene is a member of the septin gene family of nucleotide binding proteins, originally described in yeast as cell division cycle regulatory proteins. Septins are highly conserved in yeast, Drosophila, and mouse and appear to regulate cytoskeletal organization. Disruption of septin function disturbs cytokinesis and results in large multinucleate or polyploid cells. This gene is mapped to 22q11, the region frequently deleted in DiGeorge and velocardiofacial syndromes. A translocation involving the MLL gene and this gene has also been reported in patients with acute myeloid leukemia. Two transcripts of this gene, a major one of 2.2 kb and a minor one of 3.5 kb, have been observed. The 2.2 kb form results from the utilization of a non-consensus polyA signal (AACAAT). In the absence of polyadenylation from this imperfect site, the consensus polyA signal of the downstream neighboring gene (GP1BB; platelet glycoprotein Ib) is used, resulting in the 3.5 kb transcript. An alternatively spliced transcript variant with a different 5' end has also been identified, but its full-length nature has not been completely determined.[5]


SEPT5 has been shown to interact with:


  1. ^ "Human PubMed Reference:". 
  2. ^ "Mouse PubMed Reference:". 
  3. ^ McKie JM, Sutherland HF, Harvey E, Kim UJ, Scambler PJ (November 1997). "A human gene similar to Drosophila melanogaster peanut maps to the DiGeorge syndrome region of 22q11". Human Genetics. 101 (1): 6–12. doi:10.1007/s004390050576. PMID 9385360. 
  4. ^ Yagi M, Zieger B, Roth GJ, Ware J (June 1998). "Structure and expression of the human septin gene HCDCREL-1". Gene. 212 (2): 229–36. doi:10.1016/S0378-1119(98)00146-2. PMID 9611266. 
  5. ^ a b "Entrez Gene: SEPT5 septin 5". 
  6. ^ Choi P, Snyder H, Petrucelli L, Theisler C, Chong M, Zhang Y, Lim K, Chung KK, Kehoe K, D'Adamio L, Lee JM, Cochran E, Bowser R, Dawson TM, Wolozin B (October 2003). "SEPT5_v2 is a parkin-binding protein". Brain Research. Molecular Brain Research. 117 (2): 179–89. doi:10.1016/S0169-328X(03)00318-8. PMID 14559152. 
  7. ^ Liu M, Aneja R, Sun X, Xie S, Wang H, Wu X, Dong JT, Li M, Joshi HC, Zhou J (December 2008). "Parkin regulates Eg5 expression by Hsp70 ubiquitination-dependent inactivation of c-Jun NH2-terminal kinase". The Journal of Biological Chemistry. 283 (51): 35783–8. doi:10.1074/jbc.M806860200. PMID 18845538. 
  8. ^ Bläser S, Jersch K, Hainmann I, Zieger W, Wunderle D, Busse A, Zieger B (July 2003). "Isolation of new splice isoforms, characterization and expression analysis of the human septin SEPT8 (KIAA0202)". Gene. 312: 313–20. doi:10.1016/S0378-1119(03)00635-8. PMID 12909369. 
  9. ^ Bläser S, Jersch K, Hainmann I, Wunderle D, Zgaga-Griesz A, Busse A, Zieger B (May 2002). "Human septin-septin interaction: CDCrel-1 partners with KIAA0202". FEBS Letters. 519 (1-3): 169–72. doi:10.1016/S0014-5793(02)02749-7. PMID 12023038. 

Further reading[edit]