Sequence 8 from Patent WO02081677. Sequence 1 from Patent WO2004050884. Sequence 1 from Patent EP1854891. Sequence 1 from patent US 7344886. Improved Gene Expression. Novel neomycin phosphotransferase genes and method for theselection of high-producing recombinant cells. Improved Gene Expression. NEW NEOMYCIN-PHOSPHOTRANSFERASE GENES AND METHODS FOR THE SELECTION OF RECOMBINANY CELLS PRODUCING HIGH LEVELS OF A DESIRED GENE PRODUCT. Improved Gene Expression. NEW NEOMYCIN-PHOSPHOTRANSFERASE GENES AND METHODS FOR THE SELECTION OF RECOMBINANY CELLS PRODUCING HIGH LEVELS OF A DESIRED GENE PRODUCT. Polynucleotides for enhancing expression of a polynucleotide of interest. Sequence 17 from Patent EP1975228. Sequence 17 from Patent WO2008116931. Sequence 1 from patent US 7732181. Sequence 8 from patent US 7812148. Sequence 8 from Patent EP2224010. JP 2010259439-A/8: Improved Gene Expression. JP 2010042033-A/8: Improved Gene Expression.