Levels and/or Sustainability of DNA-based Gene Expression

a gene expression and sustainability technology, applied in the field of level and/or sustainability of dna-based gene expression, can solve the problem of mystery of the biological significance of these patterns, and achieve the effect of facilitating an assay

Inactive Publication Date: 2015-04-16
CARNEGIE INSTITUTION OF WASHINGTON +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a method for improving the expression of a target nucleic acid in a eukaryotic cell. This is achieved by modifying the target nucleic acid to limit the positions of nucleosome cores and introducing it into the cell. The modified nucleic acid has improved levels and sustainability of expression compared to the original unmodified nucleic acid. Overall, the patent provides a way to enhance the expression of specific genes in eukaryotic cells.

Problems solved by technology

Although the bulk genome periodicity analysis has substantial power to detect patterns in the sequence, the biological significance of these patterns has remained somewhat of a mystery, in particular, due to challenges in identifying and finding functional consequences corresponding to individual sequence characteristics.

Method used

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  • Levels and/or Sustainability of DNA-based Gene Expression
  • Levels and/or Sustainability of DNA-based Gene Expression
  • Levels and/or Sustainability of DNA-based Gene Expression

Examples

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example 1

Materials and Methods

[0206]Sequences used for this analysis were downloaded from Genbank (Wheeler et al., 2005, which is herein incorporated by reference in its entirety), Wormbase (Spieth et al., 2005), or the Intronerator (Kent and Zahler, 2000, which is herein incorporated by reference in its entirety) databases at the times noted in describing each experiment. Use of distinct versions of certain sequences was in some cases necessitated by the availability of annotation files of a given type only for those versions. Basic observations (such as the strong enrichment of phasing in the C. elegans genome and the propensity for periodic sequences to appear in autosomal arms) have been confirmed for numerous releases of the genome sequence and using several independent software tools with a wide variety of parameters.

[0207]SAGE data were obtained from the Genome BC C. elegans Gene Expression Consortium hhtp: / / elegans.bcgsc.bc.ca / .

[0208]Stringent repeat masking of genomes was carried ou...

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Abstract

The invention encompasses methods for improving the level and / or sustainability of expression for a target nucleic acid in a eukaryotic cell comprising: (a) modifying the target nucleic acid to introduce or to comprise signals that limit or constrain the positions of nucleosome cores, and (b) introducing the modified target nucleic acid into the eukaryotic cell, wherein the modified target nucleic acid has improved levels and / or sustainability of expression compared to original unmodified nucleic acid.

Description

RELATED APPLICATIONS[0001]This application claims the benefit of priority of U.S. Provisional Application 60 / 762,504, filed Jan. 27, 2006.STATEMENT OF U.S. GOVERNMENT INTEREST[0002]The work described herein was performed under grant NIH-R01-GM37706 of the National Institute of General Medical Science, NIH. The U.S. Government may, therefore, have certain rights with respect to the invention pursuant to said grant.FIELD OF THE INVENTION[0003]The present invention relates to improving levels and / or sustainability of DNA-based gene expression in eukaryotic cells through the inclusion of defined nucleosome positioning signals and / or periodic clusters of AA::TT dinucleotides.BACKGROUND OF THE INVENTION[0004]DNA carries biological information on a variety of levels. Some of the information is evident from well-defined sequence features such as the genetic code and certain reproducible transcription factor binding sites. Other (perhaps equally important) information in the genome may invol...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): C12N15/11
CPCC12N15/11C12N2310/18A61K48/0066C12N15/63
InventorFIRE, ANDREWGRACEY, LIALUI, WENG-ONN
OwnerCARNEGIE INSTITUTION OF WASHINGTON