BAIAP2L1和BAIAP2L2不同的调节毛细胞立体形态
Keji Yan1, Haoqing Zhang1, Chengli Qu1
1Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology and Key Laboratory for Experimental Teratology of the Ministry of Education, School of Life Sciences, Shandong University, Qingdao, Shandong, China.
概括
BAIAP2L1蛋白定位于内耳中最高的立体,与BAIAP2L2.2不同. 它的功能似乎在淘汰赛小鼠中得到补偿,这表明其他蛋白质可能维持毛细胞结构和功能.
科学领域:
- 细胞生物学 细胞生物学
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 遗传学 遗传学 是一个
背景情况:
- 内耳的感觉毛细胞具有立体,这些基于动素的突起对听力和平衡至关重要.
- 立体的高度由尖端复合体调节,包括1行和2行复合体.
- 众所周知,BAI1相关蛋白2-like 2 (BAIAP2L2) 能够保持更短的立体细胞 (排2复合体).
研究的目的:
- 为了研究BAIAP2L1的局部化和功能,BAIAP2L2的奥托洛格,在立体细胞中.
- 确定BAIAP2L1是否在最高的立体 (排-1复合体) 中起作用.
- 在体内了解BAIAP2L1损失的功能后果.
主要方法:
- 免疫局部化研究,以确定BAIAP2L1在立体细胞上的局部化.
- 分析BAIAP2L1局部依赖于已知的1列复合蛋白 (EPS8,MYO15A) 和的分析.
- 对Baiap2l1淘汰赛小鼠的表型分析,包括听觉和平衡功能测试.
主要成果:
- BAIAP2L1定位在最高排的立体的尖端,依赖于EPS8和MYO15A.
- BAIAP2L1局部化是不依赖的,与BAIAP2L2.2不同.
- Baiap2l1淘汰赛小鼠的听力和平衡功能在很大程度上是正常的,没有明显的Row-1复合物的破坏.
结论:
- BAIAP2L1和BAIAP2L2定位在不同的立体列,并且可能具有不同的调节作用.
- 在Baiap2l1淘汰赛小鼠中缺乏显著的表型表明其他BAIAP家族成员的功能补偿,例如BAIAP2.
- 需要进一步的研究来阐明BAIAP家族蛋白质对立体调节的精确机制.
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