DNA sequencing apparatus
First Claim
1. A DNA sequencing apparatus, comprising:
- a) a first reaction vessel comprising a reaction chamber having a first means for transfer of reagents, reactants and reaction products into and out of the chamber;
b) means for separating individual oligonucelotides and polynucleotides on the basis of length, the separating means having means for receiving reaction products from the first reaction vessel;
c) a second reaction vessel for oxidizing pentose sugars comprising a second reaction chamber having a second means for transferring reactants and reagents into the reaction chamber and gaseous by-products of a reaction out of the reaction chamber;
d) means for selectably transferring separated oligonucelotides and polynucleotides from the separating means alternatively into the first or the second reaction vessel;
e) a third transfer means for transferring the gaseous by-products out of the second reaction vessel;
f) a collection chamber for collecting the gaseous by-products, the collection chamber being in communication with the third transfer means; and
g) means for analyzing the relative abundance of the components of the gaseous by-product by mass, the analyzing means being in communication with a fourth transfer means for transferring gaseous by-products from the collection chamber to the analyzing means.
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Accused Products
Abstract
The DNA sequencing apparatus contains the following components. A first reaction vessel contains a reaction chamber into and out of which can be transferred reagents, reactants and reaction products. A device for separating individual oligonucleotides and polynucleotides on the basis of length, such as an electrophoretic unit, receives reaction products from the first reaction vessel. A second reaction vessel is designed for oxidizing pentose sugars. It comprises a reaction chamber having a device for transferring reactants and reagents into the reaction chamber and gaseous by-products of a reaction out of the reaction chamber. Separated oligonucleotides and polynucleotides can be selectably transferred from the separating device alternatively into the first or the second reaction vessel. The device also includes a second transfer device for transferring the gaseous by-products out of the second reaction vessel and a collection chamber for collecting the gaseous by-products. The collection chamber is in communication with the second transfer device. Finally, the apparatus contains an analyzer for analyzing the relative abundance of the components of the gaseous by-product by mass such as a mass spectrometer, the analyzer being in communication with a transfer device for transferring gaseous by-products from the collection chamber to the analyzer.
164 Citations
13 Claims
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1. A DNA sequencing apparatus, comprising:
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a) a first reaction vessel comprising a reaction chamber having a first means for transfer of reagents, reactants and reaction products into and out of the chamber; b) means for separating individual oligonucelotides and polynucleotides on the basis of length, the separating means having means for receiving reaction products from the first reaction vessel; c) a second reaction vessel for oxidizing pentose sugars comprising a second reaction chamber having a second means for transferring reactants and reagents into the reaction chamber and gaseous by-products of a reaction out of the reaction chamber; d) means for selectably transferring separated oligonucelotides and polynucleotides from the separating means alternatively into the first or the second reaction vessel; e) a third transfer means for transferring the gaseous by-products out of the second reaction vessel; f) a collection chamber for collecting the gaseous by-products, the collection chamber being in communication with the third transfer means; and g) means for analyzing the relative abundance of the components of the gaseous by-product by mass, the analyzing means being in communication with a fourth transfer means for transferring gaseous by-products from the collection chamber to the analyzing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A DNA sequencing apparatus;
- comprising;
a) a reaction vessel comprising a reaction chamber and a programmable robotic dispensing means for delivering reagents and reactants into the chamber and for transferring reaction products out of the chamber; b) an electrophoretic unit having means for accepting reaction products from the reaction vessel; c) a periodic acid oxidation cell having means for transferring reactants and reagents into the cell and gaseous by-products out of the cell; d) a fluid pump in communication with a selectable two way valve, the electrophoretic unit, the reaction vessel, and the periodic acid oxidation cell; e) a formaldehyde gas collection cell and piston injector in communication with the periodic acid oxidation cell; f) a one way valve in communication with the formaldehyde gas collection cell; g) a mass spectrometer in communication with the one way valve; and
ah) programmable computer for controlling; i) the reaction vessel; ii) the electrophoretic unit; iii) the pump and selectable two way valve; iv) the formaldehyde gas collection cell and piston injector; v) the one way valve; and vi) the mass spectrometer.
- comprising;
Specification