SPEF2

SPEF2
Identifiers
Aliases SPEF2, CT122, KPL2, sperm flagellar 2
External IDs MGI: 2443727 HomoloGene: 23371 GeneCards: SPEF2
RNA expression pattern


More reference expression data
Orthologs
Species Human Mouse
Entrez

79925

320277

Ensembl

ENSG00000152582

ENSMUSG00000072663

UniProt

Q9C093

Q8C9J3

RefSeq (mRNA)

NM_024867
NM_144722

NM_177123
NM_001305042
NM_001305044

RefSeq (protein)

NP_079143.3
NP_653323.1

NP_001291973.1
NP_796097.2

Location (UCSC) Chr 5: 35.62 – 35.81 Mb Chr 15: 9.58 – 9.75 Mb
PubMed search [1] [2]
Wikidata
View/Edit HumanView/Edit Mouse

Sperm flagellar protein 2 is a protein that in humans is encoded by the SPEF2 gene.[3][4][5][6]

SPEF2 plays an important role in spermatogenesis and flagellar assembly.[7] SPEF2 is expressed in all ciliated cells and is required for cilia function.[7][8] Sperm contain cilia, and a mutation in the SPEF2 gene can cause male infertility due to immobile sperm.[7][8] In a pig animal model, a SPEF2 mutation affects the sperm tail development.[8] And a loss of function mutation in SPEF2 in mice causes the big giant head phenotype.[7] SPEF2 mRNA and protein products are localized in germ and sertoli cells.[8] Within these cells, SPEF2 is localized in the golgi complex, manchette, basal body and mid piece of the sperm tail.[8] SPEF2 has been shown to interact with the intracellular transport protein IFT20 in the testis.[8]

References

  1. "Human PubMed Reference:".
  2. "Mouse PubMed Reference:".
  3. Nagase T; Kikuno R; Hattori A; Kondo Y; Okumura K; Ohara O (Feb 2001). "Prediction of the coding sequences of unidentified human genes. XIX. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro". DNA Res. 7 (6): 347–55. doi:10.1093/dnares/7.6.347. PMID 11214970.
  4. Sironen A; Thomsen B; Andersson M; Ahola V; Vilkki J (Mar 2006). "An intronic insertion in KPL2 results in aberrant splicing and causes the immotile short-tail sperm defect in the pig". Proc Natl Acad Sci U S A. 103 (13): 5006–11. doi:10.1073/pnas.0506318103. PMC 1458785Freely accessible. PMID 16549801.
  5. Sironen A; Vilkki J; Bendixen C; Thomsen B (Sep 2007). "Infertile Finnish Yorkshire boars carry a full-length LINE-1 retrotransposon within the KPL2 gene". Mol Genet Genomics. 278 (4): 385–91. doi:10.1007/s00438-007-0256-7. PMID 17610085.
  6. "Entrez Gene: FLJ23577 KPL2 protein".
  7. 1 2 3 4 Sironen A; Kotaja N; Mulhern H; Wyatt TA; Sisson JH; Pavlik JA; Miiluniemi M; Fleming MD; Lee L (October 2011). "Loss of SPEF2 function in mice results in spermatogenesis defects and primary ciliary dyskinesia". Biol. Reprod. 85 (4): 690–701. doi:10.1095/biolreprod.111.091132. PMC 3184289Freely accessible. PMID 21715716.
  8. 1 2 3 4 5 6 Sironen A; Hansen J; Thomsen B; Andersson M; Vilkki J; Toppari J; Kotaja N (March 2010). "Expression of SPEF2 during mouse spermatogenesis and identification of IFT20 as an interacting protein". Biol. Reprod. 82 (3): 580–90. doi:10.1095/biolreprod.108.074971. PMID 19889948.

Further reading


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