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细胞松弛素B
,無編輯摘要
==基本信息==
细胞松弛素BC29H37NO5是从真菌类Helminthosporium de-mariodeum中分离得到的代谢产物。是以希腊语的cytos(细胞)和chalasis(松弛)组合而命名的。在许多动[[植物细胞]]<ref>[[叶创兴等主编. 植物学(M). 北京:高等教育出版社, 2007.07.第41页]]</ref> 的细胞运动中,特别是可逆地抑制同微丝系有关的现象。例如在0.5—1.0微克/毫升浓度下作用24小时,会使鼠的培养纤维芽细胞只进行[[核分裂]],而[[细胞质]]的分裂受到抑制,从而成为多核细胞。5微克/毫升可阻止蛙的受精卵的卵裂沟的形成,致使不能进行正常的卵裂,也抑制淋巴球、[[海胆卵]]、[[肺上皮细胞]]等的细胞质分裂,还阻止[[原肠]]陷入(海胆、[[螠虫]]等),鸡的第五天的雏鸡输卵管的管状腺的形成,[[唾液腺]]的形成,阻止因胚神经索的生长圆锥的运动引起的伸长等,阻止发育、形态形成等过程。此外,还阻害游离细胞的移动,分离胚细胞的相互选别,阻止细胞向玻璃面上粘着和[[白血球]]的吞食作用、血小板的凝集、血饼的收缩、生长激素的释放、[[甲状腺素]]的分泌等。对于植物来说,30微克/毫升,1小时以内可以使燕麦的孑[[叶鞘]]和车轴藻的[[原生质流动]]完全停止。在这些情况下,用电子显微镜观察,常能见到[[微丝]]的镜相变化,其他已知细胞松弛素B还可抑制糖的输送,可以考虑细胞松弛素B与细胞膜间的相互作用。此外还分离出数种具有类似结构和功能的物质,分别命名为[[细胞松弛素]]A、C、D、E、F。
{| class="https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E7%BB%86%E8%83%9E%E6%9D%BE%E5%BC%9B%E7%B4%A0B&step_word=&hs=0&pn=033&spn=0&di=71468572000932331537146857200156147713&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=2&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=-1&cs=31475572382952249017%2C4414511282C1728141649&os=35546243243238835391%2C918818942C439436233&simid=41548175052952249017%2C6784697082C1728141649&adpicid=0&lpn=0&ln=211&fr=&fmq=1667054428962_R1667054950195_R&fm=detail&ic=0&s=undefined&hd=undefined&latest=undefined©right=undefined&se=&sme=&tab=0&width=&height=&face=undefined&ist=&jit=&cg=&bdtype=015&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2Fm2Fstruc.biochemsafebuychem960.com%2Fstatic2Fstrucimg%2Fimages2F15000%2Fproducts%2F2ca722da359ace4b6a0cc9beffee8fa32Faky2ppjdaihdukjx4whx4qee.gifpng%26refer%3Dhttp%3A%2F%2Fm2Fstruc.biochemsafebuychem960.com%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Dauto%3Fsec%3D16696464353D1669646961%26t%3D13bf383f90ba8efba940d915d7c8eefe3Dd182f22611949882f5b495b25ae3b997&fromurl=ippr_z2C%24qAzdH3FAzdH3F4_z24qAzdH3FAzdH3Fooo_z%26e3Bkt5vij4fwujk7y_z26e3Bfi673t_z%26e3Bv54AzdH3FvAzdH3Fr6517vpAzdH3F89lna-lm-d_9cnnldAzdH3Fg7ssAzdH3F826e3Bv54AzdH3Fr6517vpAzdH3Fkso3anvd09n&gsm=1e0000000000001e&rpstart=0&rpnum=0&islist=&querylist=&nojc=undefined" style="float:right; margin: -10px 0px 10px 20px; text-align:left"|<center>'''{| class="1" style="float:right; margin: -10px 0px 10px 20px; text-align:left"|<center>'''2'''<br><imgsrc="3 " width="280"></center><small> 圖片來自4</small> |}细胞松弛素B'''<br><imgsrc="https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fm2Fstruc.biochemsafebuychem960.com%2Fstatic%2Fimages2Fstrucimg%2Fproducts2F15000%2F2ca722da359ace4b6a0cc9beffee8fa32Faky2ppjdaihdukjx4whx4qee.gifpng&refer=http%3A%2F%2Fm2Fstruc.biochemsafebuychem960.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=16696464351669646961&t=13bf383f90ba8efba940d915d7c8eefe d182f22611949882f5b495b25ae3b997" width="280"></center><small> 圖片來自百度</small>
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==详细介绍==