Name: microdissection of black widow spider silk-producing glands
Uploaded: 2011-01-11T23:59:00
Description: Watch this Scientific Journal Video about Microdissection of Black Widow Spider Silk-producing Glands at JoVE.com

这项工作是由一个NSF的锐格兰特MCB - 0950372题为黑寡妇蜘蛛丝的分子表征支持。

1。麻醉蜘蛛腹部和隔离<ol><li>蜘蛛从一个玻璃瓶转移到一个纸箱内衬塑料（图1A）。我们通常从woodpiles，车库或灌木丛中收集的蜘蛛和玻璃罐的实验室，他们的房子。由于蜘蛛不能爬上塑料衬里，它提供了一个有效的方法来从一个玻璃瓶或咖啡可以转移到一个较小的小瓶anesthetizing目的的蜘蛛。虽然处理的蜘蛛，在这一点上，你应该穿两双乳胶手套或为安全起见，园艺手套。 </li><li>虽然蜘蛛衬塑...

<ol>
	<li>Vollrath, F., Knight, D. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Int. J. Biol. Macromol. 24, 243-243 (1999).</li><li>Gosline, J. M., Guerette, P. A., Ortlepp, C. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> J. Exp. Biol. 202, 3295-3295 (1999).</li><li>Gosline, J. M., DeMont, M. E., Denny, M. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Endeavour. 10, 31-31 (1986).</li><li>Hinman, M. B., Jones, J. A., Lewis, R. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Trends Biotechnol. 18 (9), 374-374 (2000).</li><li>Lewis, R. V., Xu, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Proc. Natl. Acad. Sci. 87, 7120-7120 (1990).</li><li>Colgin, M. A., Lewis, R. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Protein Sci. 7 (3), 667-667 (1998).</li><li>Tian, M., Lewis, R. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Appl. Phys. A-Mater. 82, 265-265 (2006).</li><li>Hu, X., Lawrence, B., Kohler, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Biochemistry. 44 (30), 10020-10020 (2005).</li><li>Vasanthavada, K., Hu, X., Falick, A. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> J Biol Chem. 282 (48), 35088-35088 (2007).</li><li>Hayashi, C. Y., Blackledge, T. A., Lewis, R. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Mol. Biol. Evol.. 21 (10), 1950-1950 (2004).</li><li>Blasingame, E., Tuton-Blasingame, T., Larkin, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> J Biol Chem. 284 (42), 29097-29097 (2009).</li></ol>

我们从黑寡妇蜘蛛丝生产腺体的显微解剖的方法提供了一种有效的手段，获得高度纯化的的丝绸生产的腺体。解剖在1.5至3小时就可以完成，产生了七个不同的一套完整的丝绸生产从cobweavers腺体。获得高度纯化的样品丝腺，让调查人员能够执行广泛的生化研究，包括确定新的丝绸或使用质谱分析mRNA水平的选择性表达的基因在不同的腺体内腺体管腔内容存储伴侣蛋白，并在体外培养特定腺体?...

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		<div>
		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<tr>
<td>Sodium chloride</td>
<td>&nbsp;</td>
<td>EM Science</td>
<td>SX0420-1</td>
<td>0.1 M in water</td>
</tr>
<tr>
<td>Diethyl pyrocarbonate</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>D-5758 - 5 ml</td>
<td>0.1% v/v</td>
</tr>
<tr>
<td>Sodium citrate</td>
<td>&nbsp;</td>
<td>Sigma</td>
<td>S1804 - 1 kg</td>
<td>0.015 M in water</td>
</tr>
<tr>
<td>Dissecting microscope</td>
<td>&nbsp;</td>
<td>Leica Microsystems</td>
<td>Leica MZ16</td>
<td>&nbsp;</td>
<tr>
<td>Digital microscope camera</td>
<td>&nbsp;</td>
<td>Leica Microsystems</td>
<td>DFC320</td>
<td>Software - Leica Application Suite v2.8.1</td>
</tr>
<tr>
<td>Vannas scissors</td>
<td>&nbsp;</td>
<td>World Precision Instruments</td>
<td>500260</td>
<td>&nbsp;</td>
<tr>
<td>Stainless steel forceps</td>
<td>&nbsp;</td>
<td>World Precision Instruments</td>
<td>501764</td>
<td>Mini Dumont #M5S</td>
</tr>
<tr>
<td>Insect pins</td>
<td>&nbsp;</td>
<td>Indigo Instruments</td>
<td>33414-2</td>
<td>Insect pins #2</td>
</tr>
<tr>
<td>Small or large dissection dishes</td>
<td>&nbsp;</td>
<td>Living Systems Instrumentation</td>
<td>DD-50-S or DD-90-S</td>
<td>52 mm diameter x 18 mm H (Sylgard Depth ~6mm) or 93 mm x 22 mm</td>
</tr>
<tr>
<td>Drosophila culture vials</td>
<td>&nbsp;</td>
<td>Carolina Biological Supply Company</td>
<td>FR-17-3076</td>
<td>Size is 31.75 mm diameter x 101.6 mm</td>
</tr>		</tbody>
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microdissection of black widow spider silk-producing glands

现代蜘蛛自旋高性能纤维丝，具有广泛的生物学功能，包括运动，捕获猎物和保护发展的后代 1,2 。蜘蛛来完成这些任务的纺纱几个不同的光纤类型有不同的力学性能。这种专业化的光纤类型有发生，通过不同的丝腺，小biofactories功能的演变。这些biofactories制造和储存大量的丝蛋白纤维生产。通过一系列复杂的生化事件，这些丝蛋白是从液态转换成固体物质一经挤出。 机械的研究表明，蜘蛛丝都强于高强度钢3。了解蜘蛛丝线的结构和功能之间的关系的分析发现，蜘蛛丝主要包括蛋白质，或fibroins，在其蛋白质序列4块重复。通过翻译的丝绸的cDNA分析，作出贡献，以令人难以置信的蜘蛛丝的拉伸强度和可扩展性的分子共同签名正在揭开。由于蜘蛛丝的非凡的材料特性，世界各地的研究实验室都在竞相理解和模仿的纺纱工艺，生产人造丝纤维，商业，军事和工业应用。纺纱的研究实验室中的人造蜘蛛丝的主要挑战之一，涉及了从丝绸生产腺体的纤维的挤压过程中发生的生化过程的完整的理解。 在这里，我们提出了七个不同的丝绸生产cobweaving黑寡妇蜘蛛，其中包括主要和次要的ampullate腺体腺体[生产吊斗铲和脚手架丝绸] 5,6，tubuliform [综合蛋的情况下丝] 7隔离的方法，8，flagelliform [COB -织布未知功能]，总[胶丝，aciniform [综合猎物包装和蛋的情况下线程] 9号和梨状[生产附件光盘丝绸] 10。这种方法是根据麻醉蜘蛛与二氧化碳气体，随后的分离从腹部的头胸部和腹部的显微切割获得的丝绸生产的腺体。随着丝绸生产的不同腺体分离，这些组织可用于检索不同的大分子，包括实时定量PCR，北部，免疫印迹，质谱（MS或MS / MS）分析，确定不同的生化分析新的蚕丝蛋白序列，蛋白质参与丝绸大会通路，或使用完整的组织细胞培养或组织学实验搜索。

Watch this Scientific Journal Video about Microdissection of Black Widow Spider Silk-producing Glands at JoVE.com

Microdissection of Black Widow Spider Silk-producing Glands

在这里，我们描述了一个有效的策略，以消除雌性黑寡妇蜘蛛腹部的丝生产腺体。此过程允许的七个不同的丝绸生产腺体高度纯化的时尚，一个调查研究蜘蛛丝的生产和纤维大会的重要的过程中迅速隔离。

显微切割的黑寡妇蜘蛛丝绸生产腺体

Modern spiders spin high-performance silk fibers with a broad range of biological functions, including locomotion, prey capture and protection of ...

Research

JoVE Journal

Biology

Dissection of Midgut and Salivary Glands from Ae. aegypti Mosquitoes

从AE肠和唾液腺的解剖。埃及伊蚊蚊

The mosquito midgut and salivary glands are key entry and exit points for pathogens such as Plasmodium parasites and Dengue viruses. This video protocol ...

科研

生物学

Laser Capture Microdissection of Mammalian Tissue

激光捕获显微切割哺乳动物组织

Laser capture microscopy, also known as laser microdissection (LMD), enables the user to isolate small numbers of cells or tissues from frozen or ...

Microdissection of Zebrafish Embryonic Eye Tissues

斑马鱼胚胎眼组织显微切割的

Zebrafish is a popular animal model for research on eye development because of its rapid ex utero development and good fecundity. By 3 days post ...

Isolation of Viable Multicellular Glands from Tissue of the Carnivorous Plant, Nepenthes

Isolation of Viable Multicellular Glands from Tissue of the Carnivorous Plant, Nepenthes

从食虫植物组织分离存活的多细胞腺的，猪笼草</i

Many plants possess specialized structures that are involved in the production and secretion of specific low molecular weight compounds and proteins. ...

Reconstruction of 3-Dimensional Histology Volume and its Application to Study Mouse Mammary Glands

3维组织学音量和其研究小鼠乳腺腺体的应用改造

Histology volume reconstruction facilitates the study of 3D shape and volume change of an organ at the level of macrostructures made up of cells. It can ...

Cryosectioning Method for Microdissection of Murine Colonic Mucosa

Cryosectioning方法小鼠结肠黏膜显微切割

The colonic mucosal tissue provides a vital barrier to luminal antigens. This barrier is composed of a monolayer of simple columnar epithelial cells. The ...

Rodent Working Heart Model for the Study of Myocardial Performance and Oxygen Consumption

灭鼠工作心脏模型心肌的性能和氧耗的研究

Isolated working heart models have been used to understand the effects of loading conditions, heart rate and medications on myocardial performance in ways ...

Isolation of Intact, Whole Mouse Mammary Glands for Analysis of Extracellular Matrix Expression and Gland Morphology

完整、全小鼠乳腺的分离及细胞外基质表达及腺体形态学分析

The goal of this procedure was to harvest the #4 abdominal mammary glands from female nulliparous mice in order to assess ECM expression and ductal ...

Investigating Teliospore Germination Using Microrespiration Analysis and Microdissection

利用 Microrespiration 分析和显微解剖研究 Teliospore 萌发

Smut fungi are the etiological agents of several devastating agricultural diseases. They are characterized by the production of teliospores, which are ...

Isolation of Myoepithelial Cells from Adult Murine Lacrimal and Submandibular Glands

成年小鼠泪液和下颌腺肌上皮细胞的分离

The lacrimal gland (LG) is an exocrine tubuloacinar gland that secretes an aqueous layer of tear film. The LG epithelial tree is comprised of acinar, ...