Hello Oranit,

The Custom track feature along with the Table browser can help identify 
this type of data. There is also a PCR tool that you may find helpful.

Gene tracks are located in the "Gene and Gene Prediction" track 
grouping. Start with UCSC Genes to locate your genes and move to other 
tracks as needed. You can even BLAT a sequence against the genomic (if 
it is not in the Browser) and save a custom track to view against the 
other data in the Assembly browser. For any dataset, the track 
description page lists methods, credits, and has links to the base 
tables that contain the data, linked to the Table browser.

Once you are familiar with the gene tracks, go to the Table browser, set 
the variables and enter a list of the gene identifiers to limit output. 
One output option is "sequence" where you can specify predicted promoter 
regions based on upstream DNA. Save the data as a custom track. Also 
saving the complete table data may be interesting you. Notice that for 
many tracks, the base table has links to other tables that can be joined 
into the output.

To identify CpG islands that contain the regions in the custom track of 
promoters (above), set the Table browser variables for the track "CpG 
Islands" in the "Regulation" track grouping. Use the intersection 
feature to limit the output from the CpG Islands track to be only those 
regions in the custom track created above. Save again as another custom 
track or download.

Use the Assembly browser to view details, locate regions for primers, 
etc. The "get DNA" tool (DNA link in top blue bar) can extract sequence 
for any genomic region. Try using the Sessions feature to increase the 
amount of time that custom track data can be saved on the server (but 
keep downloaded back-ups!).

Some links for help:
http://genome.ucsc.edu/cgi-bin/hgTables
http://genome.ucsc.edu/goldenPath/help/hgTablesHelp.html
http://genome.ucsc.edu/cgi-bin/hgCustom
http://genome.ucsc.edu/FAQ/FAQcustom
http://genome.ucsc.edu/cgi-bin/hgPcr
http://genome.ucsc.edu/goldenPath/help/hgSessionHelp.html
http://genome.ucsc.edu/cgi-bin/hgSession

For sample queries on related topics, a search against the mailing list 
archives may be informative: http://genome.ucsc.edu/contacts.html


This should help you to get started,
Jennifer Jackson
UCSC Genome Bioinformatics Group

oranit zadok wrote:
> hi
>
> my name is oranit and im doing a research about epigenetic changes in lung
> cancer.
>
> I want to use the UCSC Genome Browser for detection of promoters and their
> CpG islands- can you explain me how to do so? can you also explain how can I
> design primers for CpG regions of the genes im interested in? can you give
> me the general guidelines?
> it is very urgent and i will appreciate the answer...
>
> thank you in advance, Oranit
> _______________________________________________
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