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HBond Score Web-Interface

Screen - Version 3.4 Web-Interface
 

To compute the HBond score of a 5’ splice site, based upon its capability to form H-bonds with U1 snRNA, you need to enter at least one canonic 5’ splice site sequence, starting from exon position -3, through exon position -1, and intron position +1 to intron position +8, i.e. 11 nucleotides containing “GT” in positions +1 and +2, like e.g. CAGGTAAGTAT. Upper- and lowercase are equally admitted. The output provides HBond scores and H-bond pattern for the 5’ ss.

If you enter a genomic sequence (>11 nt), all possible canonic splice sites containing “GT” in positions +1 and +2 are screened and the respective HBond scores and H-Bond patterns are displayed. Note that the output data can be copied into e.g. Microsoft Excel using "Edit - Paste Special (Formatted Text)".

5’ splice site (11 nt)

sequence to be screened

HBond score and
H-bond pattern

 

Sort output by HBond score

 

 

 

 

Screen lines

 

 

Screen file

 

We developed a new algorithm that analyses individual hydrogen bonding patterns of a U1 snRNA binding site, irrespective of any nucleotide frequency.

Our model postulates that different binding patterns of SR proteins determine different threshold values for U1 snRNP binding.

Screen 3.4 and the HBond score have been developed in collaboration with Wolfram Gierling, Thorsten Preuß (www.thpr.net) and Stephan Theiss (www.result-medical.com).

Screen 3.4 can be used for free by non-profit institutions for non-commercial purposes. No commercial use permitted or implied unless the user obtains a license in writing from the author below in advance of any such use.

Please contact:

Prof. Dr. Heiner Schaal
Institut für Virologie
Heinrich-Heine-Universität zu Düsseldorf
+49-211-81-12393
[schaal@uni-duesseldorf.de]

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