Selective capture and enrichment of proteins expressed on the cell surface
First Claim
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1. A method for obtaining cell surface proteins comprising the steps of:
- a) Mixing intact cell sample with a periodate forming a mixture, b) Reacting the mixture with a binding reagent forming a binding complex, and c) Isolating the proteins from the binding complex, wherein the isolated proteins are cell surface proteins.
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Abstract
The present invention provides a method for enriching cell surface proteins by oxidizing glycosylated protein with periodate. The present invention further provides that the cell surface proteins are obtained from intact cells either from cell lines or from tissues. The present invention provides a method not only capable of obtaining increased quantities of the cell surface proteins, but also capable of obtaining a wide ranges of proteins that are not detectable by other means.
12 Citations
13 Claims
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1. A method for obtaining cell surface proteins comprising the steps of:
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a) Mixing intact cell sample with a periodate forming a mixture, b) Reacting the mixture with a binding reagent forming a binding complex, and c) Isolating the proteins from the binding complex, wherein the isolated proteins are cell surface proteins. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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- 9. A binding complex comprising cell surface proteins of intact cells oxidized by periodate and covalently bond to a binding reagent that reacts to carbonyl groups of the cell surface proteins.
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13. A method for obtaining cell surface proteins comprising the steps of:
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a) Obtaining a homogenous cell population from a biological sample, which are intact cells, b) Mixing intact cell sample with a periodate forming a mixture, c) Reacting the mixture with a binding reagent forming binding complex, and d) Isolating the proteins from the binding complex, wherein the isolated proteins are cell surface proteins.
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Specification