Expres2ion Biotechnologies Aps

Chemgene Holding Aps

Peter Birk Rasmussen

Willem Adriaan De Jongh

Charlotte Dyring

Helene Lykkegaard

Disclosed is a DNA polynucleotide comprising a nucleic acid sequence having promoter activity in aS2 cell, where said nucleic acid sequence is selected from (i) a nucleotide sequence of SEQ ID NO: 1, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO: 5, SEQ ID NO:6, SEQ ID NO:33, SEQ ID NO:36, SEQ ID NO: 37, or SEQ ID NO: 68 with or without flanking restriction site sequences at either terminus; (ii) a functional nucleotide sequence with a sequence identity of at least 80% to any one sequence of (i); (iii) a nucleotide which is a functional fragment of at least 6 contiguous nucleotides of any one sequence of (i) or (ii); (iv) a functional nucleotide sequence with a sequence identity of at least 80% to said functional fragment of (iii); (v) a first chimeric nucleotide sequence comprising two or more sequences of any one sequence of (i), (ii), (iii) and (iv), and (vi) a second chimeric nucleotide sequence, comprising at least 6 nucleotides and including consecutive nucleotide stretches from at least 2 nucleotide sequences of (iii) and/or (iv), where each of said consecutive stretches alone does not have promoter activity in aS2 cell. Also disclosed are vectors and cells comprising the polynucleotide and a method for producing a polypeptide of interest by use of the polynucleotide.

Protein expression system

The invention combines the advantages of split and mix synthesis with the advantages of template directed synthesis. The method comprises the steps of: a) adding a linker molecule L to one or more reaction wells; b) adding a molecule fragment to each of said reaction wells; c) adding an oligonucleotide identifier to each of said reaction wells; d) subjecting said wells to conditions sufficient to allow said molecule fragments and said oligonucleotide identifiers to become attached to said linker molecule, or conditions sufficient for said molecule fragments to bind to other molecule fragments and sufficient for said oligonucleotide identifiers to bind to other oligonucleotide identifiers; e) combining the contents of said one or more reaction wells; and f) contacting the resulting bifunctional molecule(s) of step e) with one or more (oligonucleotide) templates each capable of hybridizing to at least one of the oligonucleotide identifiers added in step c).

Growing community of inventors

Holte, Denmark

Peter Birk Rasmussen