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首页> 外文期刊>Genomics >The LZTFL1 gene is a part of a transcriptional map covering 250 kb within the common eliminated region 1 (C3CER1) in 3p21.3.
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The LZTFL1 gene is a part of a transcriptional map covering 250 kb within the common eliminated region 1 (C3CER1) in 3p21.3.

机译:LZTFL1基因是转录图的一部分,覆盖3p21.3中公共消除区域1(C3CER1)中的250 kb。

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摘要

Deletions on 3p have been described in a large number of human tumors, suggesting the presence of a tumor suppressor gene(s). Using the elimination test, we previously defined a 1-Mb segment from human 3p21.3 (C3CER1). Genomic sequencing allowed us to construct a transcription map covering 250 kb containing five genes. We have characterized a human leucine zipper containing gene, leucine zipper transcription factor-like 1 (LZTFL1), and its mouse orthologue (Lztfl1), which was also mapped to mouse chromosome 9F. The LZTFL1 gene has two transcript isoforms displaying alternative polyadenylation. We have localized the human orthologue of the yeast SAC1 (suppressor of actin) gene as well as characterized and mapped the mouse Sac1 gene. Furthermore, the XT3 gene was characterized, encoding a member of the Na(+)/Cl(-) neurotransmitter superfamily. It has been shown that the XT3 gene had an alternatively spliced brain-specific isoform, predicted to remove 1 of 12 putative transmembrane domains. The transcription map also includes the CC chemokine receptor 9 gene (CCR9) and the LIM domain containing gene 1 (LIMD1). This work partially defines the gene content of C3CER1 that is a prerequisite for delineation of its role in tumorigenesis. Copyright 2001 Academic Press.
机译:已经在许多人类肿瘤中描述了3p的缺失,表明存在肿瘤抑制基因。使用消除测试,我们先前从人类3p21.3(C3CER1)定义了一个1-Mb片段。基因组测序使我们能够构建一个包含5个基因的250 kb的转录图。我们已经表征了人类亮氨酸拉链包含基因,亮氨酸拉链转录因子样1(LZTFL1),和它的小鼠直系同源基因(Lztfl1),也映射到小鼠9F染色体。 LZTFL1基因有两个转录亚型,显示出可替代的聚腺苷酸化。我们已经定位了酵母SAC1(肌动蛋白抑制剂)基因的人类直系同源物,以及表征和定位了小鼠Sac1基因。此外,XT3基因的特征是编码Na(+)/ Cl(-)神经递质超家族的成员。已经显示,XT3基因具有选择性剪接的脑特异性同种型,预计将除去12个推定的跨膜结构域中的1个。转录图还包括CC趋化因子受体9基因(CCR9)和含LIM结构域的基因1(LIMD1)。这项工作部分地定义了C3CER1的基因含量,这是描述其在肿瘤发生中作用的先决条件。版权所有2001,学术出版社。

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