この作品は、米海軍研究若手研究プログラム賞N000141110914、海軍研究助成N000141010827のオフィス、NSFキャリアアワードCCF1054898、NIHディレクターの新イノベーター賞1DP2OD007292のオフィスと（PY）は生物学的にインスパイア工学部スタートアップ基金ウィス研究所によって資金を供給させました清華 - 北京（BW）はライフサイエンススタートアップ基金センター。

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The authors declare competing financial interests.

構造形成工程では、自己組織化DNAナノ構造のDNA鎖の混合物（ 例えば 、15 mM）のマグネシウムカチオンの適切な濃度を維持することが重要です。同様に、アガロースゲル特性評価/精製工程では、ゲル電気泳動中にDNAナノ構造を保持するゲルランニング緩衝液中で、適切なマグネシウムカチオン濃度（ 例えば 、10ミリモル）を維持することが重要です。 28T矩形構造×24Hのために、?...

5,8,10 - - 13,17,23またはRNA 7,22定期的な3,4,7、前の核酸の自己組立作業1-25は、DNA 2を含む複雑な構造の様々な成功構築につながっています22とアルゴリズム5二次元格子、リボン10,12およびチューブ4,12,13、3次元結晶17、多面体11と有限、2Dは7,8を整形します。 21,25 - 16,18 -特に効果的な方法は、単一の足場鎖が複雑な形状9,14を形成するために、多くの短い補助ステープルストランドによって折り畳まれることにより足場のDNA折り紙、です。 我々は最近、一本鎖のタイル（SST）を使用して、所定の2次元形状を有する個別のナノ構造を構築するための方法を報告し、DNA折り紙26に匹敵する複雑さを有する構造を示しました。このarticleは私達の初期の作品26の適応であり、正確に所定の寸 ​​法（幅と長さ）および形態と洗練された有限の2次元形状に個別にアドレス指定するSSTを配置するための詳細なプロトコルを記述します。 SST方式の一つの重要な利点は、そのモジュール性です。構造体のすべてのコンポーネントのSSTアセンブリでモジュール構造単位として機能し、これらの海面水温の異なるサブセットは、異なる形状を作り出します。したがって、我々は短い、合成DNA鎖から所定の大きさや形状でナノ構造を構築するための一般的なプラットフォームを確立しました。 海面水温は、それぞれ10または11ヌクレオチド長の4つのドメイン（ 図1A）を含みます。海面水温は、その平行ヘリックスは、クロスオーバー結合によって一緒に保持されたDNA格子を作成するように結合します。各クロスオーバーは、リン酸が見やすくするための図で人為的に延伸されるドメイン2と3の間にリン酸塩です。クロスオーバーは、（離れて2ヘリカルターン（21塩基）を離間されています&lt;強い&gt;図1B）。複合長方形はヘリックスとヘリカル巻き数にそれらの寸法によって参照されます。たとえば、6ヘリックス幅で、8ヘリカルが長くなります長方形が8Tの長方形×6Hとして参照されます。海面水温は、取り残さ追加、またはその他の任意の形状と大きさ（ 図1C）の構造を作成するために再配置することができます。例えば、長方形のデザインは、所望の長さと半径（ 図1D）で管にロールバックすることができます。 あるいは、矩形SST格子はそれぞれ3 NMが7nmでによって、SSTの画素からなる分子キャンバスとみなすことができます。本研究では、310全長内部海面水温、左右の境界を構成する24の完全長海面水温、および上部と下部の境界を形成する28の半分の長さの海面水温の分子キャンバスを使用しています。キャンバスは、クロスオーバーによってリンクされた24の二重らせんを有し、各螺旋は28ヘリカルターン（294塩基）を含有し、したがってと呼ばれます28T矩形キャンバス×24H。 28Tキャンバス×24Hは、M13ファージの足場から作成されたDNA折り紙構造と同様の分子量を有します。

<table border="0" cellpadding="0" cellspacing="0" width="919">
	<tbody>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Name of Material/ Equipment</td>
			<td style="width:183px;">Company</td>
			<td style="width:119px;">Catalog Number</td>
			<td style="width:401px;">Comments/Description</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">DNA Strands&#160;</td>
			<td style="width:183px;">Integrated DNA Technology</td>
			<td style="width:119px;"></td>
			<td>Section 3.1</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">SYBR Safe DNA gel stain</td>
			<td style="width:183px;">Invitrogen</td>
			<td style="width:119px;">S33102</td>
			<td>Section 3.4.2</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Freeze&#39;N Squeeze DNA Gel Extraction Spin Columns</td>
			<td style="width:183px;">BIO-RAD</td>
			<td style="width:119px;">731-6166</td>
			<td>Section 3.6</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Bruker&#39;s Sharp Nitride Lever Probes</td>
			<td style="width:183px;">Bruker AFM Probes</td>
			<td style="width:119px;">SNL10</td>
			<td>Section 4.3</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Safe Imager 2.0 Blue Light Transilluminator</td>
			<td style="width:183px;">Invitrogen</td>
			<td style="width:119px;">G6600</td>
			<td>Section 3.6</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Centrifuge 5430R</td>
			<td style="width:183px;">Eppendorf</td>
			<td style="width:119px;">5428 000.414</td>
			<td>Section 3.6</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Transmission Electron Microscope&#160;</td>
			<td style="width:183px;">Jeol</td>
			<td style="width:119px;">Jem 1400</td>
			<td>Section 7.4</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Multimode 8</td>
			<td style="width:183px;">Veeco</td>
			<td style="width:119px;"></td>
			<td>Section 4</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Typhoon FLA 9000 Laser Scanner</td>
			<td style="width:183px;">GE Heathcare Life Sciences</td>
			<td style="width:119px;">28-9558-08</td>
			<td>Section 3.5</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Ultrapure Distilled water</td>
			<td style="width:183px;">Invitrogen</td>
			<td style="width:119px;">10977-023</td>
			<td>Section 3.7.1</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Mica disk</td>
			<td style="width:183px;">SPI Supplies</td>
			<td style="width:119px;">12001-26-2</td>
			<td>Section 4.1</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Steel mounting disk</td>
			<td style="width:183px;">Ted Pella, Inc.</td>
			<td style="width:119px;">16218</td>
			<td>Section 4.1</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">carbon coated copper grid for TEM</td>
			<td style="width:183px;">Electron Microscopy Sciences</td>
			<td style="width:119px;">FCF400-Cu</td>
			<td>Section 7.2</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">tweezers</td>
			<td style="width:183px;">Dumont</td>
			<td>0203-N5AC-PO</td>
			<td>Section 7.31</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">glow discharge system</td>
			<td style="width:183px;">Quorum Technologies</td>
			<td style="width:119px;">K100X</td>
			<td>Section 7.2</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">DNA Engine Tetrad 2 Peltier Thermal Cycler</td>
			<td style="width:183px;">BIO-RAD</td>
			<td>PTC&#8211;0240G</td>
			<td>Section 3.3</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Owl Easycast B2 Mini Gel Electrophoresis Systems</td>
			<td style="width:183px;">ThermoScientific</td>
			<td>B2</td>
			<td>Section 3.4.3</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Seekam LE Agarose 500G</td>
			<td style="width:183px;">Lonza</td>
			<td style="width:119px;">50004</td>
			<td>Section 3.4.1</td>
		</tr>
		<tr height="63">
			<td height="63" style="height:63px;width:216px;">GeneRuler 1kb Plus DNA Ladder, Ready-To-Use 75-20000bp</td>
			<td style="width:183px;">ThermoScientific</td>
			<td style="width:119px;">SM1333</td>
			<td>Section 3.4.4</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Nanodrop 2000c UV-vis Spectrophotometer</td>
			<td style="width:183px;">ThermoScientific</td>
			<td style="width:119px;"></td>
			<td>Section 3.7</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">0.2 um filter</td>
			<td style="width:183px;">Corning Inc.</td>
			<td style="width:119px;">431219</td>
			<td>Section 7.1.2</td>
		</tr>
	</tbody>
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self-assembly of complex two-dimensional shapes from single-stranded dna tiles

Current methods in DNA nano-architecture have successfully engineered a variety of 2D and 3D structures using principles of self-assembly. In this article, we describe detailed protocols on how to fabricate sophisticated 2D shapes through the self-assembly of uniquely addressable single-stranded DNA tiles which act as molecular pixels on a molecular canvas. Each single-stranded tile (SST) is a 42-nucleotide DNA strand composed of four concatenated modular domains which bind to four neighbors during self-assembly. The molecular canvas is a rectangle structure self-assembled from SSTs. A prescribed complex 2D shape is formed by selecting the constituent molecular pixels (SSTs) from a 310-pixel molecular canvas and then subjecting the corresponding strands to one-pot annealing. Due to the modular nature of the SST approach we demonstrate the scalability, versatility and robustness of this method. Compared with alternative methods, the SST method enables a wider selection of information polymers and sequences through the use of de novo designed and synthesized short DNA strands.

海面水温の自己集合（図1）は、図2に示すように、28T矩形×24Hをもたらす。別の海面水温のためのDNA配列は、ストレプトアビジン標識（図3及び4）の形質転換を可能にするように最適化/改変することができます様々なサイズのチューブや長方形を形成するためにチューブに長方形（ 図5）、海面水温のプログラム可能な自己集合（図10）?...

Watch this Scientific Journal Video about Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles at JoVE.com

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles

DNA tiling is an effective approach to make programmable nanostructures. We describe the protocols to construct complex two-dimensional shapes by the self-assembly of single-stranded DNA tiles.

一本鎖DNAタイルから複雑な2次元形状の自己集合

Current methods in DNA nano-architecture have successfully engineered a variety of 2D and 3D structures using principles of self-assembly. In this ...

self-assembly-complex-two-dimensional-shapes-from-single-stranded-dna

Research

JoVE Journal

Chemistry

11.4K ビュー.  Tsinghua University. DNA tiling is an effective approach to make programmable nanostructures. We describe the protocols to construct complex two-dimensional shapes by the self-assembly of single-stranded DNA tiles.