Production of a mouse line with a conditional Crim1 mutant allele.

Production of a mouse line with a conditional Crim1 mutant allele.
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DOI:
10.1002/dvg.22032
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发表时间:
2012-09
期刊:
影响因子:
1.5
通讯作者:
Pennisi, David J.
Pennisi, David J.
中科院分区:
生物学4区
文献类型:
--
作者:
Chiu, Han Sheng;York, J. Philippe;Wilkinson, Lorine;Zhang, Pumin;Little, Melissa H.;Pennisi, David J.

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BMP 1是一种发育性表达的跨膜蛋白,对正常胚胎发育至关重要。我们产生了小鼠工程包含一个条件无效等位基因的侧翼外显子3和4的单方向LoxP位点的BLO 1。将缺失的等位基因通过种系传递后,将Δ 1 +/Δ flox小鼠与CMV-Cre系杂交,建立Δ 1 +/Δflox集落。然后,我们分析了基因组DNA,mRNA转录本,和蛋白质表达从Δflox/Δflox null小鼠,以确认基因组病变的性质。Δflox/Δflox小鼠表现出与先前描述的Δ flox 1基因陷阱突变体Δ flox 1 KST 264/KST 264相似的表型,包括围产期致死性、趾并指、眼和肾异常,具有不同的致残率和严重程度。条件突变等位基因的产生代表了一个有价值的资源,用于研究组织特异性的作用,并为了解多形性表型相关的BTA 1突变。
Crim1 is a developmentally expressed, transmembrane protein essential for normal embryonic development. We generated mice engineered to contain a Crim1 conditional null allele by flanking exons three and four of Crim1 with unidirectional LoxP sites. After crossing Crim1+/FLOX mice with a CMV-Cre line, a Crim1+/Δflox colony was established after germline transmission of the deleted allele. We then analyzed genomic DNA, mRNA transcripts, and protein expression from Crim1Δflox/Δflox null mice to confirm the nature of the genomic lesion. Crim1Δflox/Δflox mice displayed phenotypes similar to those previously described for a Crim1 gene-trap mutant, Crim1KST264/KST264, including perinatal lethality, digit syndactyly, eye, and kidney abnormalities, with varying penetrance and severity. The production of a conditional mutant allele represents a valuable resource for the study of the tissue-specific roles for Crim1, and for understanding the pleimorphic phenotypes associated with Crim1 mutation.
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