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Patent Searching and Data


Title:
PROTEIN PURIFICATION MEANS
Document Type and Number:
WIPO Patent Application WO2004058978
Kind Code:
A3
Abstract:
Described is a novel purification tag, SNUT, based on the gene product of a sortase gene, in particular the srtA gene of Staphylococcus aureus and uses thereof. Also provided are expression constructs comprising DNA enoding the tag for the production of recombinant polypeptides. The tag can be used in methods of purifying soluble domains of a number of proteins previously not able to be isolated efficiently and methods of inducing and/or enhancing an immune response to an antigen of interest.

Inventors:
SCOTT CHRISTOPHER (GB)
Application Number:
PCT/GB2003/005647
Publication Date:
September 10, 2004
Filing Date:
December 29, 2003
Export Citation:
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Assignee:
FUSION ANTIBODIES LTD (GB)
SCOTT CHRISTOPHER (GB)
International Classes:
C12N9/10; C12N9/52; C12N15/70; (IPC1-7): C12N15/70; C12N15/62; C12N9/52; A61K39/00
Domestic Patent References:
WO2000062804A22000-10-26
WO2003059945A22003-07-24
Other References:
BIERNE H ET AL: "INACTIVATION OF THE SRTA GENE IN LISTERIA MONOCYTOGENES INHIBITS ANCHORING OF SURFACE PROTEINS AND AFFECTS VIRULENCE", MOLECULAR MICROBIOLOGY, BLACKWELL SCIENTIFIC, OXFORD, GB, vol. 43, no. 4, 2002, pages 869 - 881, XP001156904, ISSN: 0950-382X
TON-THAT HUNG ET AL: "Purification and characterization of sortase, the transpeptidase that cleaves surface proteins of Staphylococcus aureus at the LPXTG motif.", PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES, vol. 96, no. 22, 26 October 1999 (1999-10-26), Oct. 26, 1999, pages 12424 - 12429, XP002253866, ISSN: 0027-8424
ILANGOVAN UDAYAR ET AL: "Structure of sortase, the transpeptidase that anchors proteins to the cell wall of Staphylococcus aureus.", PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES, vol. 98, no. 11, 22 May 2001 (2001-05-22), May 22, 2001, pages 6056 - 6061, XP002253867, ISSN: 0027-8424
DAVIS GREGORY D ET AL: "New fusion protein systems designed to give soluble expression in Escherichia coli", BIOTECHNOLOGY AND BIOENGINEERING. INCLUDING: SYMPOSIUM BIOTECHNOLOGY IN ENERGY PRODUCTION AND CONSERVATION, JOHN WILEY & SONS. NEW YORK, US, vol. 65, no. 4, 1999, pages 382 - 388, XP002192026, ISSN: 0006-3592
ZHANG Y ET AL: "EXPRESSION OF EUKARYOTIC PROTEINS IN SOLUBLE FORM IN ESCHERICHIA COLI", PROTEIN EXPRESSION AND PURIFICATION, ACADEMIC PRESS, US, vol. 12, 1998, pages 159 - 165, XP000984417, ISSN: 1046-5928
PRYOR K D ET AL: "HIGH-LEVEL EXPRESSION OF SOLUBLE PROTEIN IN ESCHERICHIA COLI USING A HIS6-TAG AND MALTOSE-BINDIN-PROTEIN DOUBLE-AFFINITY FUSION SYSTEM", PROTEIN EXPRESSION AND PURIFICATION, ACADEMIC PRESS, US, vol. 10, no. 3, August 1997 (1997-08-01), pages 309 - 319, XP000891558, ISSN: 1046-5928
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