JPS63217264A - Electrophoretic apparatus - Google Patents

Electrophoretic apparatus

Info

Publication number
JPS63217264A
JPS63217264A JP62051698A JP5169887A JPS63217264A JP S63217264 A JPS63217264 A JP S63217264A JP 62051698 A JP62051698 A JP 62051698A JP 5169887 A JP5169887 A JP 5169887A JP S63217264 A JPS63217264 A JP S63217264A
Authority
JP
Japan
Prior art keywords
gel
light source
sensor
sample
exists
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62051698A
Other languages
Japanese (ja)
Other versions
JPH0785073B2 (en
Inventor
Junichi Akiyama
純一 秋山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP62051698A priority Critical patent/JPH0785073B2/en
Publication of JPS63217264A publication Critical patent/JPS63217264A/en
Publication of JPH0785073B2 publication Critical patent/JPH0785073B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To improve the accuracy of measurement by disposing a gel to a cylindrical shape, providing a light source and detector in such a manner that either thereof exists on the inside of the gel and the other exists on the outside and both face each other, and rotating the light source and the detector around the axis of the gel cylinder. CONSTITUTION:The gel 30 is disposed to the cylindrical shape. The light source 38 exists on the inside of the gel 30 and the sensor 40 exists on the outside of the gel 30. The light source 38 and the sensor 40 are so provided as to face each other; in addition, the light source 38 and the sensor 40 are so constituted as to rotate around the axis of the gel 30 cylinder. DNA fragments by terminal bases are injected as sample to the top end of the gel 30 at this time. A migration voltage is then impressed between an electrolyte 32 and an electrolyte 34 to cause the electrophoresis of the sample along the gel 30. The light source 38 and the sensor 40 are rotated and the light absorption is successively measured under scanning in the direction orthogonal with the migration direction. The sample is detected by the sensor 40 when the migrating sample comes to the position where the light is projected. The detection signal thereof is read by a data processing circuit 42 and the base sequence of the DNA is determined.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はゲルに沿って試料を電気泳動させ、泳動中又は
泳動後の試料を光学的に検出する電気泳動装置に関する
にのような電気泳動装置は、例えばマクサム・ギルバー
ト(Maxam −G11bert、)法又はサンガー
(Sanger)法を利用して核酸の塩基配列を決定す
る装置として利用される。
Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an electrophoresis device that electrophores a sample along a gel and optically detects the sample during or after electrophoresis. The device is used to determine the base sequence of a nucleic acid using, for example, the Maxam-Gilbert method or the Sanger method.

(従来の技術) 従来の電気泳動装置には泳動板に平板状のスラブゲルを
使用したものがある。
(Prior Art) Some conventional electrophoresis devices use a plate-shaped slab gel as a migration plate.

第3図の例ではポリアクリルアミドのスラブゲル2の面
端が電解液に浸漬されて泳動電圧が印加される。そして
一端には末端塩基A(アデニン)。
In the example shown in FIG. 3, the surface end of the polyacrylamide slab gel 2 is immersed in an electrolytic solution and a migration voltage is applied. And at one end is the terminal base A (adenine).

G(グアニン)、C(シトシン)、T(チミン)別に調
整された試料が注入され、スラブゲル2の垂直方向aに
電気泳動が行なわれる。
Samples prepared for G (guanine), C (cytosine), and T (thymine) are injected, and electrophoresis is performed in the vertical direction a of the slab gel 2.

スラブゲル2の面の一方の側には光源4が設けられ、他
方の側にはラインセンサ6が設けられる。
A light source 4 is provided on one side of the surface of the slab gel 2, and a line sensor 6 is provided on the other side.

光源4は泳動方向と直交する方向すに移動され、スラブ
ゲル2を透過した光又は試料に標識として設けられた蛍
光物質からの蛍光がラインセンサ6で検出されることに
よって泳動される試料の検出が行なわれる。8はデータ
処理回路である。
The light source 4 is moved in a direction perpendicular to the electrophoresis direction, and the line sensor 6 detects the light transmitted through the slab gel 2 or the fluorescence from the fluorescent substance provided as a label on the sample, thereby detecting the sample being electrophoresed. It is done. 8 is a data processing circuit.

第4図は平板上のスラブゲル2を用いた他の電気泳動装
置を表わしている。
FIG. 4 shows another electrophoresis device using a slab gel 2 on a flat plate.

この電気泳動装置ではアルゴンレーザ10がらのレーザ
ビームをレンズI2とミラーI4にょってスラブゲル2
の厚さ内を一端側から他端側に透過させる。試料はスラ
ブゲル2に沿って紙面垂直方向に電気泳動する。試料の
DNA断片には標識として蛍光物質が設けられており、
その蛍光物質がレーザビームによって励起されて蛍光を
発し、干渉フィルタ18及びレンズ20を経て受光部2
2で検出され、データ処理回路24へ送られる。
In this electrophoresis device, a laser beam from an argon laser 10 is applied to a slab gel 2 by a lens I2 and a mirror I4.
Transmits through the thickness from one end to the other end. The sample is electrophoresed along the slab gel 2 in a direction perpendicular to the plane of the paper. A fluorescent substance is provided as a label on the DNA fragment of the sample,
The fluorescent material is excited by the laser beam and emits fluorescence, which passes through the interference filter 18 and lens 20 to the light receiving section 2.
2 and sent to the data processing circuit 24.

(発明が解決しようとする問題点) 第3図の電気泳動装置では、光源4を直線上で往復運動
させるために、高速操作に問題がある。
(Problems to be Solved by the Invention) The electrophoresis apparatus shown in FIG. 3 has a problem in high-speed operation because the light source 4 is reciprocated in a straight line.

そのため多検体試料を泳動させる場合、そのレーンの数
が16〜20程度が限界となる。
Therefore, when performing electrophoresis for multiple analyte samples, the maximum number of lanes is approximately 16 to 20.

また、第4図の電気泳動装置では、レーザビームがスラ
ブゲル2中を一端から他端へ透過しなければならないた
め、レーザビームの入射側と出射側とでは光の減衰によ
って励起光強度が異なる問題がある。
In addition, in the electrophoresis apparatus shown in Fig. 4, the laser beam must pass through the slab gel 2 from one end to the other, so there is a problem in that the intensity of the excitation light differs between the input side and the output side of the laser beam due to light attenuation. There is.

本発明は、簡単な機構で多数の検体試料、すなわち多数
のレーンを測定することのできる電気泳動装置を提供す
ることを目的とするものである。
An object of the present invention is to provide an electrophoresis device that can measure a large number of specimen samples, that is, a large number of lanes, with a simple mechanism.

(問題点を解決するための手段) 実施例を示す第1図を参照して説明すると1本発明では
ゲル(30)を円筒状に配置する。光源(38)と検出
器(40)をその一方がゲル(30)の内側、他方がゲ
ル(30)の外側にあって互いに対向するように設け、
光源(38)と検出器(40)の組又はゲル(30)を
ゲル(30)の円筒の軸を中心として回転させる。
(Means for Solving the Problems) To explain with reference to FIG. 1 showing an embodiment, in the present invention, the gel (30) is arranged in a cylindrical shape. A light source (38) and a detector (40) are provided so that one of them is inside the gel (30) and the other is outside the gel (30) and are facing each other,
The light source (38) and detector (40) set or gel (30) is rotated about the axis of the cylinder of gel (30).

(実施例) 第1図は一実施例を表わす。(Example) FIG. 1 represents one embodiment.

30は円筒状に形成されたポリアクリルアミド・ゲルで
ある。半径が互いに異なりその隙間が0゜5〜0.8m
mになる2個のガラス円筒を同軸上に重ね、その隙間に
ポリアクリルアミド・ゲル30を形成することができる
。また、可撓性フィルム上にポリアクリルアミド・ゲル
を形成し、そのフィルムを円筒状に巻き付けることによ
っても円筒状ゲル30を形成することができる。
30 is a polyacrylamide gel formed into a cylindrical shape. The radius is different from each other and the gap is 0°5~0.8m
The polyacrylamide gel 30 can be formed in the gap between two glass cylinders of m on the same axis. The cylindrical gel 30 can also be formed by forming polyacrylamide gel on a flexible film and winding the film into a cylindrical shape.

ゲル30の円筒の軸が垂直方向になるように設置され、
ゲル30の上端が電解液32に浸され、下端が電解液3
4に浸される。電解液32と電解液34の間には電源3
6によって泳動電圧が印加される。
The axis of the cylinder of gel 30 is installed in the vertical direction,
The upper end of the gel 30 is immersed in the electrolyte 32, and the lower end is immersed in the electrolyte 32.
4. A power supply 3 is connected between the electrolyte 32 and the electrolyte 34.
A migration voltage is applied by 6.

ゲル30の上端にはサンガー法などで処理された末端塩
基別のDNA断片が試料として注入され。
At the upper end of the gel 30, DNA fragments according to their terminal bases, which have been treated by the Sanger method, are injected as samples.

ゲル30を矢印a方向に電気泳動していく。The gel 30 is electrophoresed in the direction of arrow a.

ゲル30の円筒の内側には光源38が設けられ。A light source 38 is provided inside the cylinder of gel 30.

ゲル30の外側にはセンサ40が設けられている。A sensor 40 is provided outside the gel 30.

光源38とセンサ40は対向し、光′g38からゲル3
0を透過した光がセンサ40で検出される。
The light source 38 and the sensor 40 face each other, and the light source 38 and the sensor 40 are arranged to emit light from the gel 3.
The light that has passed through the sensor 40 is detected by the sensor 40.

光源38とセンサ40は対向した状態のままでゲル30
の円筒の軸を回転中心として回転することができる。光
源38としてはタングステンランプ。
While the light source 38 and sensor 40 remain facing each other, the gel 30
It can be rotated around the axis of the cylinder. The light source 38 is a tungsten lamp.

ハロゲンランプ又は水銀ランプなどの紫外線用ランプが
使用される。
An ultraviolet lamp such as a halogen lamp or a mercury lamp is used.

42はセンサ40の検出信号から塩基配列を決定するデ
ータ処理回路である。
42 is a data processing circuit that determines the base sequence from the detection signal of the sensor 40.

次に5本実施例の動作について説明する。Next, the operation of the fifth embodiment will be explained.

ゲル30の上端に末端塩基別のDNA断片を試料として
注入する。電解液32と電解液34の間に電源36によ
って泳動電圧を印加して試料をゲル30に沿って電気泳
動させる。そして、光源38とセンサ40を回転させて
泳動方向と直交する方向に走査しつつ光吸収を測定して
いく。
DNA fragments of different terminal bases are injected into the upper end of the gel 30 as samples. An electrophoresis voltage is applied between the electrolytic solution 32 and the electrolytic solution 34 by a power source 36 to cause the sample to be electrophoresed along the gel 30. Then, light absorption is measured while rotating the light source 38 and sensor 40 and scanning in a direction perpendicular to the migration direction.

試料が泳動して光照射位置にくるとセンサ40によって
検出され、その検出信号がデータ処理回路42によって
読み取られてDNAの塩基配列が決定されていく。
When the sample migrates and comes to the light irradiation position, it is detected by the sensor 40, the detection signal is read by the data processing circuit 42, and the base sequence of the DNA is determined.

光71!38としてはタングステンランプなどのランプ
を直接設けてもよく、又はそれらのランプからの光を光
学系により導いてもよい。光源38としてはまた、Ar
レーザやHe −N eレーザなどからのレーザビーム
を光学系により導いてきてもよい。
As the light 71!38, a lamp such as a tungsten lamp may be provided directly, or the light from such a lamp may be guided by an optical system. As the light source 38, Ar
A laser beam from a laser, a He-Ne laser, or the like may be guided by an optical system.

センサ40では試料の泳動ゾーンによる吸収を測定する
のに代えて、試料を蛍光体でラベルしておき、その蛍光
を検出するようにしてもよい。
Instead of measuring the absorption of the sample by the migration zone, the sensor 40 may label the sample with a fluorescent material and detect the fluorescence.

実施例では光源38がゲル30の円筒の内側に配置され
、センサ40がゲル30の円筒の外側に配置されている
が、これを逆にして光源38をゲル30の円筒の外側に
配置し、センサ40をゲル30の円筒の内側に配置して
もよい。
In the embodiment, the light source 38 is placed inside the cylinder of gel 30 and the sensor 40 is placed outside the cylinder of gel 30, but this is reversed and the light source 38 is placed outside the cylinder of gel 30, Sensor 40 may be placed inside the cylinder of gel 30.

また、光源38とセンサ40の組を回転させているが、
逆にゲル30を回転させ、光源38とセンサ40を固定
するようにしてもよい。
Furthermore, although the pair of light source 38 and sensor 40 is rotated,
Conversely, the light source 38 and sensor 40 may be fixed by rotating the gel 30.

第2図は他の実施例におけるゲルの部分を示したもので
ある。
FIG. 2 shows the gel portion in another example.

ガラスキャピラリー44にポリアクリルアミド・ゲルを
充填し、ガラスキャピラリー44を二重ガラス管などの
支持部材46に沿って円筒状に配列している。ポリアク
リルアミド・ゲルが充填されたガラスキャピラリー44
を円筒状に配置して第1図の円筒状ゲル30に代えたも
のである。
Glass capillaries 44 are filled with polyacrylamide gel and arranged in a cylindrical shape along a support member 46 such as a double glass tube. Glass capillary 44 filled with polyacrylamide gel
are arranged in a cylindrical shape to replace the cylindrical gel 30 in FIG.

第2図のゲルを用いる場合も、第1図で説明したように
使用することができる。
When using the gel shown in FIG. 2, it can also be used as explained in FIG. 1.

(発明の効果) 本発明ではゲルを円筒状に配置し、光源と検出器をその
一方がゲルの内側、他方がゲルの外側にあって互いに対
向するように設け、光源と検出器の組又はゲルをゲルの
円筒の軸を中心として回転させるので、走査を行なうの
に回転だけですみ、高速走査が可能になる。高速走査を
すれば、繰り返して検出し積算して平均化をすることが
できるので、検出精度が向上する。
(Effects of the Invention) In the present invention, the gel is arranged in a cylindrical shape, and the light source and the detector are provided so that one of them is inside the gel and the other is outside the gel, facing each other. Since the gel is rotated around the axis of the gel cylinder, only rotation is required for scanning, allowing for high-speed scanning. High-speed scanning allows repeated detection, integration, and averaging, which improves detection accuracy.

また、高速操作が可能になることから、従来の平板上ゲ
ルを用いる場合より多くの検体を同時に泳動させて検出
することが可能になる。
Furthermore, since high-speed operation becomes possible, it becomes possible to simultaneously migrate and detect more specimens than when using conventional flat plate gels.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は一実施例を示す概略斜視図、第2図は他の実施
例における泳動部分を示す概略斜視図、第3図は従来の
電気泳動装置を示す概略図、第4図は他の従来の電気泳
動装置を示す概略図である。 30・・・・・・円筒状ゲル、 32.34・・・・・・電解液、 36・・・・・・泳動用電源、 38・・・・・・光源、 40・・・・・・センサ、 42・・・・・・データ処理回路、 44・・・・・・ガラスキャピラリー。
FIG. 1 is a schematic perspective view showing one embodiment, FIG. 2 is a schematic perspective view showing the electrophoresis part in another embodiment, FIG. 3 is a schematic diagram showing a conventional electrophoresis device, and FIG. 4 is a schematic perspective view showing another embodiment. FIG. 1 is a schematic diagram showing a conventional electrophoresis device. 30... Cylindrical gel, 32.34... Electrolyte, 36... Power supply for electrophoresis, 38... Light source, 40... Sensor, 42... Data processing circuit, 44... Glass capillary.

Claims (1)

【特許請求の範囲】[Claims] (1)ゲルが円筒状に配置され、このゲルの一端に試料
が注入されるとともに、このゲルの一端と他端が電解液
に浸され両端間に泳動電圧が印加され、光源と検出器が
その一方が前記円筒の内側、他方が前記円筒の外側に、
かつ、互いに対向して設けられており、光源と検出器の
組又は前記ゲルが前記円筒の軸を中心として回転させら
れる電気泳動装置。
(1) A gel is arranged in a cylindrical shape, a sample is injected into one end of this gel, one end and the other end of this gel are immersed in an electrolytic solution, and an electrophoretic voltage is applied between both ends, and a light source and a detector are connected. One of them is inside the cylinder, the other is outside the cylinder,
and an electrophoresis device in which the light source and detector set or the gel is rotated about the axis of the cylinder, and the gel is rotated about the axis of the cylinder.
JP62051698A 1987-03-05 1987-03-05 Electrophoresis device Expired - Fee Related JPH0785073B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62051698A JPH0785073B2 (en) 1987-03-05 1987-03-05 Electrophoresis device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62051698A JPH0785073B2 (en) 1987-03-05 1987-03-05 Electrophoresis device

Publications (2)

Publication Number Publication Date
JPS63217264A true JPS63217264A (en) 1988-09-09
JPH0785073B2 JPH0785073B2 (en) 1995-09-13

Family

ID=12894117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62051698A Expired - Fee Related JPH0785073B2 (en) 1987-03-05 1987-03-05 Electrophoresis device

Country Status (1)

Country Link
JP (1) JPH0785073B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH054005U (en) * 1991-07-02 1993-01-22 横河電機株式会社 Electrophoresis device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987660U (en) * 1982-12-03 1984-06-13 セイコーインスツルメンツ株式会社 Cylindrical gel electrophoresis plate
JPS59190397A (en) * 1983-04-09 1984-10-29 Mitsui Joho Kaihatsu Kk Ring type electrophoresis device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987660U (en) * 1982-12-03 1984-06-13 セイコーインスツルメンツ株式会社 Cylindrical gel electrophoresis plate
JPS59190397A (en) * 1983-04-09 1984-10-29 Mitsui Joho Kaihatsu Kk Ring type electrophoresis device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH054005U (en) * 1991-07-02 1993-01-22 横河電機株式会社 Electrophoresis device

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Publication number Publication date
JPH0785073B2 (en) 1995-09-13

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