Coordinates decreasing from left to right?

[Shraddha Pai]

Hi,

Is there a new feature in the current UCSC genome browser that could result in coordinates decreasing from left-to-right?

Notice that in this screenshot, coordinates decrease from 6601401 to 6601397.

Thanks,Shraddha

[Brian Lee]

Dear Shaddha,

Thank you for using the UCSC Genome Browser and your question about decreasing coordinates.

Thank you for including your screenshot, it has helped indicate what is occurring. What is displaying is the "reverse" mode of the Browser, you can switch this back by clicking the button below the browser window toward the left where you will find buttons named "multi-region" "reverse" "resize" and "refresh."  By clicking the "reverse" button your display will return to the view you are accustomed to seeing. 

To explain what may have happened, in the past year the Browser has implemented many keyboard shortcuts.  If you type "?" while browsing you will see a list of them pop-up.  You may have accidentally typed "r v" which will "reverse" the display.  You can use that shortcut as well instead of using the button to quickly flip the display back and forth.

You may also be interested to try the "resize" button or "r s" shortcut when you change the size of your Browser window, it will resize the display to accommodate a larger monitor.  Another recent feature in the past year is the "multi-region" tool which will slice the display of the genome into genes only, haplotypes, or exons only (shortcut "e v" for exon view, and "d v" to return to default view). Other shortcut keys may enjoy are the 1,2,3,4,5,6 keys to zoom in and out to regions of 50, 500, 5000, ect. bases. 

Thank you again for your inquiry and using the UCSC Genome Browser. If you have any further questions, please reply to gen...@soe.ucsc.edu. All messages sent to that address are archived on a publicly-accessible forum. If your question includes sensitive data, you may send it instead to genom...@soe.ucsc.edu.

All the best,

Brian Lee
UCSC Genomics Institute

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[Shraddha Pai]

Hi Brian,

Aha. Inadvertent reversal by a keyboard shortcut is very likely what happened here.

Typing "r v" again changed the direction of the coordinates. 

Also very much like the resize functionality and the 1,2,3,4,5,6 shortcuts! Great addition.

Thank you for pointing out these features and for resolving the matter.

Regards,

Shraddha