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首页> 外文期刊>Cell biology international. >Synaptic adhesion molecules in Cadm family at the neuromuscular junction.
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Synaptic adhesion molecules in Cadm family at the neuromuscular junction.

机译:Cadm家族在神经肌肉接头处的突触粘附分子。

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摘要

RA175/SynCAM1/Cadm1 (Cadm1), a member of the immunoglobulin superfamily, is a synaptic cell adhesion molecule that has a PDZ-binding motif at the C-terminal region. It promotes the formation of presynaptic terminals and induces functional synapses in the central nervous system. Cadm1-deficient (knockout [KO]) mice show behavioral abnormalities, including excessive aggression and anxiety, but do not show any symptoms of neuromuscular disorder, although neuromuscular junctions (NMJs) have structures similar to synapses. We have examined the expression of members of the Cadm family in the mouse muscle tissues. Cadm4 and Cadm1 were major components of the Cadm family, and Cadm3 was faintly detected, but Cadm2 was not detected by RT-PCR. Cadm4 as well as Cadm1 colocalized with alpha-bungarotoxin at the NMJs and interacted with the multiple PDZ domain protein Mupp1. Cadm4 was expressed in Cadm1-KO mice and might compensate for Cadm1 loss through interactions with Mupp1.
机译:RA175 / SynCAM1 / Cadm1(Cadm1)是免疫球蛋白超家族的成员,是一种突触细胞粘附分子,在C端区域具有PDZ结合基序。它促进突触前末端的形成,并在中枢神经系统中诱导功能性突触。缺乏Cadm1(敲除[KO])的小鼠表现出行为异常,包括过度攻击和焦虑,但没有显示任何神经肌肉疾病的症状,尽管神经肌肉接头(NMJ)具有类似于突触的结构。我们检查了小鼠肌肉组织中Cadm家族成员的表达。 Cadm4和Cadm1是Cadm家族的主要组成部分,微弱检测到Cadm3,但RT-PCR未检测到Cadm2。 Cadm4以及Cadm1与NMJ处的α-真菌毒素共定位,并与多个PDZ域蛋白Mupp1相互作用。 Cadm4在Cadm1-KO小鼠中表达,可能通过与Mupp1的相互作用补偿Cadm1的丢失。

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