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首页> 外文期刊>Genomics >Identification and characterization of KLK14, a novel kallikrein serine protease gene located on human chromosome 19q13.4 and expressed in prostate and skeletal muscle.
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Identification and characterization of KLK14, a novel kallikrein serine protease gene located on human chromosome 19q13.4 and expressed in prostate and skeletal muscle.

机译:KLK14的鉴定和表征,KLK14是一种新的激肽释放酶丝氨酸蛋白酶基因,位于人染色体19q13.4上并在前列腺和骨骼肌中表达。

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摘要

The kallikreins are a subfamily of serine proteases encoded in human, mouse, and rat by highly conserved tightly clustered multigene families. Here we report the identification and characterization of KLK14, a novel kallikrein gene located within the human kallikrein locus at 19q13.4. KLK14 is approximately 5.4 kb in length spanning seven exons and, by Northern blot analysis, transcribes two alternative transcripts present only in prostate (1.5 kb) and skeletal muscle (1.9 kb). The protein product, K14, predicted to be a 251-amino-acid secreted serine protease with trypsin-like substrate specificity, is translated in vitro with a molecular mass of approximately 31 kDa. In situ hybridization revealed that, in prostate, KLK14 is expressed by both benign and malignant glandular epithelial cells, thus exhibiting an expression pattern similar to that of two other prostatic kallikreins, KLK2 and KLK3, which encode K2 and prostate-specific antigen, respectively. Copyright 2001 Academic Press.
机译:激肽释放酶是人,小鼠和大鼠中高度保守的紧密聚簇多基因家族编码的丝氨酸蛋白酶的一个亚家族。在这里,我们报告KLK14的鉴定和特征,KLK14是一种位于人激肽释放酶基因座19q13.4的新型激肽释放酶基因。 KLK14全长约5.4 kb,跨越七个外显子,通过Northern blot分析,转录出仅存在于前列腺(1.5 kb)和骨骼肌(1.9 kb)中的两种替代转录物。蛋白质产物K14被预测为具有胰蛋白酶样底物特异性的251个氨基酸分泌的丝氨酸蛋白酶,在体外以大约31 kDa的分子量翻译。原位杂交显示,在前列腺中,KLK14由良性和恶性的腺上皮细胞表达,因此表现出与两种其他前列腺激肽释放酶KLK2和KLK3类似的表达模式,后者分别编码K2和前列腺特异性抗原。版权所有2001学术出版社。

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