Abstract: The present invention relates to a novel method for the identification and/or characterization of clones conferring a desired biological property from an expression library. The method of the invention comprises the step of analyzing for the expression of at least one (poly)peptide, such as a tag expressed as a fusion protein, together with a recombinant insert of a clone of said expression library, wherein the clones of said expression library are arranged in arrayed form. Said (poly)peptide may be fused N-terminally or C-terminally to said insert.

Abstract: The present invention relates to a method for identifying and/or characterizing a (poly)peptide comprising: (a) analyzing a peptide map of said (poly)peptide, comprising at least 1 peptide, and its peptide primary structure fingerprint by mass spectrometry; and (b) comparing data obtained in step (a) with a reference (poly)peptide database, said database comprising mass spectrometric data of peptide maps, comprising at least 1 peptide, and of its peptide primary structure fingerprint, of a (poly)peptide or of a variety of (poly)peptides.

Abstract: The present invention relates to a novel method for the identification and/or characterization of clones conferring a desired biological property from an expression library. The method of the invention comprises the step of analyzing for the expression of at least one (poly)peptide, such as a tag expressed as a fusion protein, together with a recombinant insert of a clone of said expression library, wherein the clones of said expression library are arranged in arrayed form. Said (poly)peptide may be fused N-terminally or C-terminally to said insert.

Abstract: The present invention relates to a method for the preselection of shotgun clones, e.g., cosmids, PACs, BACs, etc. of a genome of an organism, or of parts of the genome of an organism that significantly reduces the time and workload associated with the further processing of shotgun clones, for example, in sequencing projects such as the human genome project. The invention relies on a combination of steps including the transfer of shotgun clones to a carrier. e.g., nylon membrane, glass chip, etc. where the clones bind, preferably hybridize to a set of specifically selected probes, e.g., DNA oligonucleotides, PNA oligonucleotides or pools of DNA or/and PNA oligonucleotides, further antibodies, fragments or derivatives thereof which are labeled or unlabeled. Each probe of said set interacts to 1 to 99% (ideally 50%) of all shotgun clones (nucleic acid fragments) in all investigated shotgun libraries.

Abstract: The present invention relates to a method for the preselection of shotgun clones, e.g., cosmids, PACs, BACs, etc. of a genome of an organism, or of parts of the genome of an organism that significantly reduces the time and workload associated with the further processing of shotgun clones, for example, in sequencing projects such as the human genome project. The invention relies on a combination of steps including the transfer of shotgun clones to a carrier, e.g., nylon membrane, glass chip, etc. where the clones bind, preferably hybridize to a set of specifically selected probes, e.g., DNA oligonucleotides, PNA oligonucleotides or pools of DNA or/and PNA oligonucleotides, further antibodies, fragments or derivatives thereof which are labeled or unlabeled.