Abstract: The invention provides a method for generating a polynucleotide sequence or population of sequences from parent single stranded polynucleotide sequences encoding one or more protein motifs, comprising the steps of a) providing single stranded DNA constituting plus and minus strands of parent polynucleotide sequences; b) digesting the single stranded polynucleotide sequences with a nuclease other than DNase I to generate populations of single stranded fragments; c) contacting said fragments generated from the plus strands with fragments generated from the minus strands and optionally, adding primer sequences that anneal to the 3? and 5? ends of at least one of the parent polynucleotides under annealing conditions; d) amplifying the fragments that anneal to each other to generate at least one polynucleotide sequence encoding one or more protein motifs having altered characteristics as compared to the one or more protein motifs encoded by said parent polynucleotides.
Type:
Grant
Filed:
July 20, 2005
Date of Patent:
October 16, 2007
Assignee:
Alligator Bioscience, AB
Inventors:
Roland Carlsson, Ann-Christin Malmborg Hager, Christina Furebring, Carl Borrebaeck
Abstract: A method for in vitro molecular evolution of protein function The invention provides a method for generating a polynucleotide sequence or population of sequences from parent single-stranded polynucleotide sequences encoding one or more protein motifs, comprising the steps of (a) providing a first population of single-stranded polynucleotide molecules and a second population of single-stranded polynucleotide molecules, the first and second populations together constituting plus and minus strands of parent polynucleotide sequences, (b) carrying out a reaction for digesting the first and second populations of single-stranded polynucleotide molecules with an exonuclease to generate corresponding populations of single-stranded polynucleotide fragments, (c) contacting said fragments generated from the plus strands with fragments generated from the minus strands and optionally, adding primer sequences that anneal to the 3? and 5?ends of at least one of the parent polynucleotides under annealing conditions, and (d) a
Type:
Grant
Filed:
May 16, 2003
Date of Patent:
August 28, 2007
Assignee:
Alligator Bioscience AB
Inventors:
Christina Furebring, Roland Carlsson, Carl Arne Krister Borrebaeck, Ann-Christin Malmborg Hager
Abstract: The present invention relates to a method for in vitro evolution of protein function. In particular, the method relates to the shuffling of nucleotide segments obtained from exonuclease digestion. The present inventors have shown that polynucleotide fragments derived from a parent polynucleotide sequence digested with an exonuclease can be combined to generate a polynucleotide sequence which encodes for a polypeptide having desired characteristics. This method may be usefully applied to the generation of new proteins (e.g., antibodies and enzymes) or parts thereof having modified characteristics as compared to the parent protein.
Type:
Grant
Filed:
December 17, 2002
Date of Patent:
December 26, 2006
Assignee:
Alligator Bioscience AB
Inventors:
Carl Arne Krister Borrebaeck, Ann-Christin Malmborg-Hager, Christina Furebring, Ulf Hans Eskil Soderlind, Rebecka Ingrid Camilla Ottosson
Abstract: A method for in vitro molecular evolution of protein function The invention provides a method for generating a polynucleotide sequence or population of sequences from parent single-stranded polynucleotide sequences encoding one or more protein motifs, comprising the steps of (a) providing a first population of single-stranded polynucleotide molecules and a second population of single-stranded polynucleotide molecules, the first and second populations together constituting plus and minus strands of parent polynucleotide sequences, (b) carrying out a reaction for digesting the first and second populations of single-stranded polynucleotide molecules with an exonuclease to generate corresponding populations of single-stranded polynucleotide fragments, (c) contacting said fragments generated from the plus strands with fragments generated from the minus strands and optionally, adding primer sequences that anneal to the 3? and 5?ends of at least one of the parent polynucleotides under annealing conditions, and (d) a
Type:
Application
Filed:
May 16, 2003
Publication date:
July 27, 2006
Applicant:
Alligator Bioscience AB
Inventors:
Christina Furebring, Roland Carlsson, Carl Borrebaeck, Ann-Christin Malmborg Hager
Abstract: The invention relates to nucleic acid molecules encoding (poly)peptides having chemotaxis inhibiting (poly)peptides CHIPS activity, to recombinant vectors harboring such molecules, and the host cells carrying the vectors. The invention further relates to methods for preparing recombinant (poly)peptides having CHIPS activity and to the use of such recombinant (poly)peptides having CHIPS activity for diagnosis, prophylaxis and treatment, such as the treatment of inflammation reactions and HIV. In addition, the invention provides therapeutic and diagnostic compositions comprising as the active ingredient the (poly)peptide having CHIPS activity.
Type:
Grant
Filed:
January 8, 2001
Date of Patent:
July 25, 2006
Assignee:
Alligator Bioscience AB
Inventors:
Johannes Antonius Gerardus Van Strijp, Cornelis Petrus Maria Van Kessel, Andreas Paul Peschel
Abstract: The invention provides a method for generating a polynucleotide sequence or population of sequences from parent single stranded polynucleotide sequences encoding one or more protein motifs, comprising the steps of (a) providing single stranded DNA constituting plus and minus strands of parent polynucleotide sequences; (b) digesting the single stranded polynucleotide sequences with a nuclease other than DNase I to generate populations of single stranded fragments; (c) contacting said fragments generated from the plus strands with fragments generated from the minus strands and optionally, adding primer sequences that anneal to the 3? and 5? ends of at least one of the parent polynucleotides under annealing conditions; (d) amplifying the fragments that anneal to each other to generate at least one polynucleotide sequence encoding one or more protein motifs having altered characteristics as compared to the one or more protein motifs encoded by said parent polynucleotides.
Type:
Grant
Filed:
December 12, 2000
Date of Patent:
October 25, 2005
Assignee:
Alligator Bioscience AB
Inventors:
Roland Carlsson, Ann-Christin Malmborg Hager, Christina Furebring, Carl Borrebaeck
Abstract: The present invention relates to a new protein of the bacteria Straphylococcus aureus with immunomodulating properties. The invention further relates to the manufacture of a therapeutic composition as general inflammation inhibitor and for the treatment of AIDS, and also the use of antibodies against CHIPS for the treatment of Staphylococcus infections.
Type:
Application
Filed:
February 22, 2005
Publication date:
June 30, 2005
Applicant:
Alligator Bioscience AB
Inventors:
Johannes Antonius Gerardus Van Strijp, Cornelis Petrus Maria Van Kessel