Determining protein function in cell culture using RNA interference
First Claim
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1. A method for assigning functional properties to polypeptides comprising:
- (a) obtaining a population of double-stranded (ds) RNA molecules, where each unique dsRNA molecule is segregated from other members of the dsRNA population;
(b) contacting one or more members of said dsRNA population with a host cell; and
(c) measuring one or more phenotypic parameters of the host cell of step (b), wherein a change in a phenotypic parameter in the host cell of step (b), as compared to a host cell not contacted with dsRNA, assigns to a polypeptide or polypeptides encoded by the one or more members of said dsRNA population of step (b) a functional property.
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Abstract
The present invention addresses one of the major issues in molecular biology today, “functional genomics.” The inventors have provided methods that utilize the phenomenon of RNA interference as a tool for identifying cDNAs that encode proteins with assayable function.
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Citations
13 Claims
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1. A method for assigning functional properties to polypeptides comprising:
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(a) obtaining a population of double-stranded (ds) RNA molecules, where each unique dsRNA molecule is segregated from other members of the dsRNA population;
(b) contacting one or more members of said dsRNA population with a host cell; and
(c) measuring one or more phenotypic parameters of the host cell of step (b), wherein a change in a phenotypic parameter in the host cell of step (b), as compared to a host cell not contacted with dsRNA, assigns to a polypeptide or polypeptides encoded by the one or more members of said dsRNA population of step (b) a functional property. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for identifying a functionally relevant polypeptides comprising:
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(a) obtaining a population of double-stranded (ds) RNA molecules, where each unique dsRNA molecule is segregated from other members of the dsRNA population;
(b) contacting one or more members of said dsRNA population with a host cell; and
(c) measuring one or more phenotypic parameters of the host cell of step (b), wherein a change in a phenotypic parameter in the host cell of step (b), as compared to a host cell not contacted with dsRNA, assigns to a polypeptide or polypeptides encoded by said one or more members of said dsRNA population of step (b) a relevant function.
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13. A method for screening a population of nucleic acids for functionally relevant polypeptides comprising:
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(a) obtaining a population of double-stranded (ds) RNA molecules, where each unique dsRNA molecule is segregated from other members of the dsRNA population;
(b) contacting one or more members of said dsRNA population with a host cell; and
(c) measuring one or more phenotypic parameters of the host cell of step (b), wherein a change in a phenotypic parameter in the host cell of step (b), as compared to a host cell not contacted with dsRNA, assigns to a polypeptide or polypeptides encoded by said one or more members of said dsRNA population of step (b) a relevant function.
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Specification