Identification of a truncated kinase suppressor of Ras 2 mRNA in sperm.
FEBS Open Bio 2014;
4:420-5. [PMID:
24918056 PMCID:
PMC4050188 DOI:
10.1016/j.fob.2014.04.004]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 03/31/2014] [Accepted: 04/16/2014] [Indexed: 01/19/2023] Open
Abstract
A truncated kinase suppressor of Ras 2 (T-KSR2) mRNA was identified.
T-KSR2 is expressed exclusively in mouse testes and sperm.
Analysis of T-KSR2 may enhance understanding of spermatogenesis and fertility.
The kinase suppressor of Ras 2 (KSR2) is a scaffold protein for the extracellular signal-regulated protein kinase (ERK) signaling pathway. KSR2 mediates germline mpk-1 (Caenorhabditis elegans ERK) phosphorylation in C. elegans and has been implicated the regulation of meiosis. KSR2−/− mice exhibit metabolic abnormalities and are reproductively impaired. The role of KSR2 in meiosis and fertility in mice has yet to be elucidated. Here, we describe a novel truncated KSR2 mRNA identified in mouse testes (T-KSR2). Further analysis demonstrates T-KSR2 is specific to mouse testes and mature sperm cells. The detection of T-KSR2 may enhance our understanding of mechanisms controlling spermatogenesis and fertility.
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