Method for improving solubility and folding efficiency of target proteins using RNA as molecular chaperone

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United States of America Patent

PATENT NO 7759303
SERIAL NO

11482401

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed is a method for improving folding efficiency and solubility of a target protein linked to a RNA-binding protein by using RNA molecule as a molecular chaperone, wherein the RNA molecule interacts with the RNA-binding protein. More particularly, the present invention discloses method for improving folding efficiency and solubility of a target protein by transformation of a host cell with a expression vector comprising a polynucleotide encoding the target protein linked to an RNA-binding protein; culturing the transformed host cell in an appropriate culture medium under the condition that an RNA molecule either resident inside the host cell or provided by cotransformation of the host cell with polynucleotide encoding the RNA molecule interacts with the RNA-binding protein; and purifying the soluble protein from host cell lysate. The method of the present invention is very useful for production of soluble proteins for therapeutic, prophylactic and diagnostic applications.

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Patent Owner(s)

Patent OwnerAddress
XCELL THERAPEUTICS INC805 1ST HANWHA-BIZMETRO B/D 242 DIGITAL-RO GURO-GU SEOUL 08394

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Seong-Il Seoul, KR 4 27
Han, Kyoung Sim Gyeonggi-do, KR 1 0
Kim, Byung Hee Gyeongsangnam-do, KR 39 350
Kim, Chul Woo Seoul, KR 50 253
Ryu, Ki-Sun Seoul, KR 1 0
Seong, Baik Lin Seoul, KR 13 20
Shin, Hang Cheol Seoul, KR 2 2

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