Method for improving solubility and folding efficiency of target proteins using RNA as molecular chaperone
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United States of America Patent
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Jul 20, 2010
Issued Date -
N/A
app pub date -
Jul 7, 2006
filing date -
Aug 19, 2002
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Abstract
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.

First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
XCELL THERAPEUTICS INC | 805 1ST HANWHA-BIZMETRO B/D 242 DIGITAL-RO GURO-GU SEOUL 08394 |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
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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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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