Name: optogenetic random mutagenesis using histone-minisog in c. elegans
Uploaded: 2016-11-14T15:00:00
Description: Watch this Scientific Journal Video about Optogenetic Random Mutagenesis Using Histone-miniSOG in C. elegans at JoVE.com

The work is supported by HHMI. We thank our lab members for their help with testing the protocol and revising the manuscript.

LED Aydınlatıcı 1. İnşaat NOT: Gerekli LED ekipman Malzeme Listesi&#39;nde özetlenmiştir. Tüm LED kurulum küçük ve biz solucanlar 4 ışık pozlama kontrolü için karanlık bir odada yerleştirilmesi önerilir rağmen, laboratuarda herhangi bir yere yerleştirilebilir. <ol><li> Kablolar (Şekil 1A, D) ile bir denetleyiciye LED bağlayın. </li><li> Bir BNC kablosu (Şekil 1A, C, D) ile bir dijital fonksiyon jeneratörü / amplifikatör kontrolörü bağl...

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Burada, Optogenetic mutagenez ayrıntılı bir prosedür His-MSOG germline ifade ile ve küçük ölçekli bir ileri genetik ekranının bir örneğini sağlar tarif eder. standart kimyasal mutajenezi ile karşılaştırıldığında, bu Optogenetic mutajenez yöntemi, bir çok avantaja sahiptir. Öncelikle, bu sayede uzak gibi EMS, TRK gibi toksik kimyasal mutajen gelen laboratuar personelinin tutmak ve ultraviyole ışık (TMP / UV) ile Trimethylpsoralen, zehirsizdir. İkinci olarak, mutagenez deney prosedürü, p <su...

Ileri genetik ekranlar yaygın olarak Caenorhabditis elegans (C. elegans: 1) gibi model organizmaların çeşitli biyolojik süreçleri bozarak genetik mutantlarını üretmek için kullanılmıştır. Bu tür mutantlar analizleri işlevsel olarak önemli genlerin keşfi yol ve sinyalizasyon 1,2 yolaklarıyla. Geleneksel olarak, C. mutagenez elegans mutajenik kimyasallar, radyasyon, veya transpozonlar 2 kullanılarak elde edilir. Örneğin etil metansülfonat (EMS) ve N-etil-N -nitrosourea (TRK) insanlar için toksik olduğu gibi kimyasalları; gama ışını ya da ultraviyole (UV) radyasyon mutagenez özel ekipman gerektirir; ve Mutator suşları 3 gibi transpozon aktif suşları, bakım sırasında gereksiz mutasyonlara neden olabilir. Biz genetik olarak kodlanmış foto 4 kullanılarak kalıtsal mutasyonlar ikna etmek için basit bir yaklaşım geliştirdik. Reaktif Oksijen Türleri (ROS) DNA 5 zarar verebilir.Mini Singlet Oksijen Jeneratörü (miniSOG) DL (Işık, Oksijen ve Voltaj) için tasarlanmış olan 106 amino asit Arabidopsis phototropin 2 6 etki bir yeşil floresan protein. Mavi ışık (~ 450 nm), miniSOG maruz kalma üzerine ROS bütün hücrelerde mevcut olan bir kofaktör 6-8 olarak fl avin mononükleotid singlet oksijen de dahil olmak üzere oluşturur. Bu histon-72, bir C, C-terminaline miniSOG etiketleyerek bir His-MSOG füzyon proteinini inşa Histon 3. elegans varyantı Bunun C tohum çizgisinden Onun-MSOG ifade etmek için bir tek kopya transgen 9 oluşturulan elegans. karanlıkta normal kültür koşulları altında, His-MSOG transgenik solucanlar, normal kuluçka büyüklüğü ve ömrü 4 var. Mavi LED ışığına maruz kalma üzerine, His-MSOG solucanlar soylarına 4 arasında kalıtsal mutasyonlara üretir. T: C: A ve G: C C: G ve küçük chromoso indüklenen mutasyon spektrumu, G gibi nükleotid değişiklikleri içerirBana 4 silmeleri. Bu mutagenez prosedürü gerçekleştirmek için basit ve minimal laboratuvar güvenliği kurulum gerektirir. Burada, optogenetic mutagenez için LED aydınlatma kurulum ve prosedürler açıklanmaktadır.

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	<tbody>
		<tr height="42">
			<td height="42" style="height:42px;width:256px;">Ultra High Power LED light source</td>
			<td style="width:71px;">Prizmatix</td>
			<td style="width:115px;">UHP-mic-LED-460</td>
			<td style="width:184px;">460 &#177; 5 nm</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:256px;">LED controller</td>
			<td style="width:71px;">Prizmatix</td>
			<td style="width:115px;">UHPLCC-01</td>
			<td style="width:184px;"></td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:256px;">Digital function generator/amplifier</td>
			<td style="width:71px;">PASCO</td>
			<td style="width:115px;">PI-9587C</td>
			<td style="width:184px;">PI-9587C is no longer available. The replacement is PI-8127.</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:256px;">BNC cable male/male</td>
			<td style="width:71px;">THORLABS</td>
			<td style="width:115px;">CA3136</td>
			<td style="width:184px;"></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:256px;">USB-TTL interface</td>
			<td style="width:71px;">Prizmatix</td>
			<td style="width:115px;"></td>
			<td style="width:184px;">Optional</td>
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		<tr height="42">
			<td height="42" style="height:42px;width:256px;">Photometer</td>
			<td style="width:71px;">THORLABS</td>
			<td style="width:115px;">PM50 and Model D10MM</td>
			<td style="width:184px;"></td>
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			<td height="21" style="height:21px;width:256px;">Filter paper</td>
			<td style="width:71px;">Whatman</td>
			<td style="width:115px;">1001-110</td>
			<td style="width:184px;"></td>
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		<tr height="46">
			<td height="46" style="height:46px;width:256px;">Copper chloride dihydrate (CuCl2&#8729;2H2O)</td>
			<td style="width:71px;">Sigma</td>
			<td style="width:115px;">C6641</td>
			<td style="width:184px;"></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:256px;">Stereomicroscope</td>
			<td style="width:71px;">Leica</td>
			<td style="width:115px;">MZ95</td>
			<td style="width:184px;"></td>
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		<tr height="163">
			<td height="163" style="height:163px;width:256px;">NGM plate</td>
			<td style="width:71px;"></td>
			<td style="width:115px;"></td>
			<td style="width:184px;">Dissolve 5g NaCl, 2.5g Peptone, 20g Agar, 10 &#181;g/ml cholesterol in 1 L H2O. After autoclaving, add 1 mM CaCl2, 1 mM MgSO4, 25 mM KH2PO4(pH6.0).&#160;</td>
		</tr>
		<tr height="88">
			<td height="88" style="height:88px;width:256px;">Lysis solution</td>
			<td style="width:71px;"></td>
			<td style="width:115px;"></td>
			<td style="width:184px;">10 mM Tris(pH8.8), 50 mM KCl, 0.1% Triton X100, 2.5 mM MgCl2, 100 &#181;g/ml Proteinase K</td>
		</tr>
	</tbody>
</table>

optogenetic random mutagenesis using histone-minisog in c. elegans

Forward genetic screening in model organisms is the workhorse to discover functionally important genes and pathways in many biological processes. In most mutagenesis-based screens, researchers have relied on the use of toxic chemicals, carcinogens, or irradiation, which requires designated equipment, safety setup, and/or disposal of hazardous materials. We have developed a simple approach to induce heritable mutations in C. elegans using germline-expressed histone-miniSOG, a light-inducible potent generator of reactive oxygen species. This mutagenesis method is free of toxic chemicals and requires minimal laboratory safety and waste management. The induced DNA modifications include single-nucleotide changes and small deletions, and complement those caused by classical chemical mutagenesis. This methodology can also be used to induce integration of extrachromosomal transgenes. Here, we provide the details of the LED setup and protocols for standard mutagenesis and transgene integration.

Biz 120 Mutagenezli haploid genomlar karşılık gelen 60 F 1 tabak arasında Bölüm 2 ve 3&#39;te açıklanan standart protokol izlenerek 30 dakika ışığa maruz kullanarak CZ20310 juSi164 unc-119 (ED3) ile bir ileri genetik ekran gerçekleştirilen biz 8 F 1 tabak bulundu F vücut büyüklüğü defekt (Şekil 3B), koordinasyonsuzluk hareketi (Şekil 3C), ve yetişkin öldürücülüğü (Şekil 3D) ol...

Watch this Scientific Journal Video about Optogenetic Random Mutagenesis Using Histone-miniSOG in C. elegans at JoVE.com

Optogenetic Random Mutagenesis Using Histone-miniSOG in C. elegans

Genetik olarak kodlanmış histon miniSOG mavi ışığa bağımlı bir şekilde genom kalıtsal mutasyonlara neden olur. Bu mutajenez yöntemi, hızlı, basit toksik kimyasalların serbest ve ileri genetik tarama ve transgen entegrasyonu için çok uygundur.

Histon-miniSOG Kullanılan optogenetic rastgele mutagenez<em&gt; C. elegans</em

Forward genetic screening in model organisms is the workhorse to discover functionally important genes and pathways in many biological processes. In most ...

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