Exploring a region in Coprinopsis cinerea okayama
Go to Ensembl Fungi. Let’s try to find some information about the region from 1,400,000 to 1,425,000 in chromosome 7 in Coprinopsis cinerea okayama:
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How many complete genes are found in this region? How many on the forward and how many on the reverse strand?
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Zoom in on the largest gene EFI27358. How many exons does this gene have?
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Export the genomic sequence in FASTA format for this region.
- In the Ensembl Fungi homepage, select Coprinopsis cinerea okayama from the Species search drop-down. Enter
7:1400000-1425000
in the Search bar and click Go. This will send you to the Location tab. Your region of interest is indicated by a red rectangle in the 50kb view. Look at the Genes track: each block represents a different gene. Count the number of complete genes within the rectangle.There are 7 complete genes in the region.
- Look at the Region in detail view (the most detailed view at the bottom of the page). You can zoom into a region by clicking and dragging your mouse (you can change your mouse action in the top right-hand corner of the view under **Drag/Select) and selecting Jump to region in the pop-up menu. Count the number of blocks you can see for EFI27358.
The EFI27358 gene has 23 exons.
Click on the transcript ID CZT99117 in the transcript table.
It has 4 exons.
- We want to export the genomic sequence for our original region (not just the EFI27358 gene). You can reset the view by entering
7:1400000-1425000
in the Location bar above the Region in detail view or hitting the Back button on your internet browser. Click on Export data in the left-hand panel. In the pop-up menu, select FASTA from the drop-down and click Next >. You can export the sequence as is (text) or as a compressed file (.gz).If you choose to download the sequence as text, your browser might open the FASTA file in a new tab. In this case, just right-click on any white space and select Save As… from the menu.