Molecular cloning and functional characterization of the porcine extracellular domain of Receptor Activator of NF-κB Ligand (sRANKL).

Molecular cloning and functional characterization of the porcine extracellular domain of Receptor Activator of NF-κB Ligand (sRANKL).
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NF-κB 配体受体激活剂 (sRANKL) 猪细胞外域的分子克隆和功能表征

DOI:
10.1016/j.gene.2011.08.008
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发表时间:
2012
期刊:
影响因子:
3.5
通讯作者:
Schieker M
Schieker M
中科院分区:
生物学3区
文献类型:
--
作者:
Böcker W;Radic T;Schönitzer V;Haasters F;Mutschler W;Schieker M

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NF-κB配体受体激活因子(RANKL)作为破骨细胞活性的调节剂发挥关键作用,并参与骨质疏松症。在这里,我们报告的猪RANKL基因(sRANKL)的完整胞外结构域的克隆和功能表征。猪sRANKL cDNA具有744个核苷酸的ORF,与人、大鼠和小鼠RANKL编码序列的同源性分别为87%、80%和80%。该蛋白由247个氨基酸组成,与人、小鼠和大鼠RANKL的序列相似性分别为90%、81%和80%。猪sRANKL的过度表达导致破骨细胞形成。破骨细胞表现出特征性的形态,表达碳酸酐酶2型,TRACP阳性,并表现出骨吸收活性。总之,我们首先描述了猪sRANKL的分子克隆和功能表征,这将有助于了解RANKL基因在大型动物模型中的功能。
Receptor Activator of NF-κB Ligand (RANKL) plays a pivotal role as a regulator of osteoclast activity and is involved in osteoporosis. Here, we report the cloning and functional characterization of the complete extracellular domain of the porcine RANKL gene (sRANKL). The porcine sRANKL cDNA has an ORF of 744 nucleotides and shares 87%, 80% and 80% identity with human, rat and mouse RANKL coding sequences, respectively. The protein consists of 247 amino acids with 90%, 81% and 80% sequences similarities compared to human, mouse and rat RANKL, respectively. Over-expression of porcine sRANKL led to osteoclast formation. The osteoclasts showed a characteristic morphology, expressed the carbonic anhydrase type 2, were TRACP positive and exhibited a bone-resorbing activity. In conclusion, we first describe the molecular cloning and functional characterization of porcine sRANKL, which will help to understand the function of a RANKL gene in large animal models.
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