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首页> 外文期刊>Zoological Science >Expression of the Gene for Translation Elongation Factor 1#alpha#-Related Protein during Development of the Sea Urchin Anthocidaris crassispina
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Expression of the Gene for Translation Elongation Factor 1#alpha#-Related Protein during Development of the Sea Urchin Anthocidaris crassispina

机译:海胆Anthocidaris crassispina发育过程中翻译延伸因子1#alpha#相关蛋白基因的表达

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摘要

The cDNA for a protein that is related to translation elongation factor 1#alpha# (EF-1#alpha#) has been cloned from the sea urchin Anthocidaris crassispina. The sea urchin EF-1#alpha#-related protein (AcEFP) seems somewhat unique in structure compared to EF-1#alpha# of other organisms so that it is uncertain if AcEFP is a genuine EF-1#alpha#. Still, it possesses many features of typical EF-1#alpha# reported so far, suggesting that AcEFP is involved in protein synthesis or its regulation. Genomic Southern analysis indicated that the sea urchin genome contains one or at most two copies of the AcEFP gene. A single transcript of 2.2 kb is expressed ubiquitously in adult tissues examined and, during embryogenesis, zygotically after the blastula stage. Whole mount in situ hybridization showed that the AcEFP gene is also widely expressed in embryos, with relatively high expression in the gut and oral ectoderm, both of which are proliferating tissues in embryos. The expression of AcEFP was not affected in embryos by agents that destabilize the extracellular matrix (ECM), suggesting that expression of AcEFP is relatively independent of the integrity of ECM is sea urchin embryos.
机译:与翻译延伸因子1#alpha#(EF-1#alpha#)相关的蛋白质的cDNA已从海胆Anthocidaris crassispina克隆。与其他生物的EF-1#alpha#相比,海胆EF-1#alpha#相关蛋白(AcEFP)的结构似乎有些独特,因此不确定AcEFP是否为真正的EF-1#alpha#。尽管如此,它仍具有迄今报道的典型EF-1#alpha#的许多特征,表明AcEFP参与蛋白质合成或其调控。 Southern基因组分析表明,海胆基因组包含一个或最多两个拷贝的AcEFP基因。 2.2 kb的单个转录物在受检的成年组织中普遍存在,在胚发生过程中,在囊胚期后合子表达。完整的原位杂交表明,AcEFP基因在胚胎中也广泛表达,在肠道和口腔外胚层中都具有较高的表达,两者都是胚胎中的增生组织。破坏细胞外基质(ECM)的药物不会影响胚胎中AcEFP的表达,这表明AcEFP的表达相对独立于ECM的完整性是海胆胚胎。

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