Region definitions are ordinary 3- or 4-field bed file format. For example:
# comment lines can be included starting with the # symbol chrX 151073054 151173000 chrX 151183000 151190000 optionalRegionName chrX 151283000 151290000 chrX 151383000 151390000
There is a limit of 1,000 defined regions. Using the upload file function will replace any existing regions. The fourth field, name, is optional and for notation purposes only; it is not used in the Table Browser. These are 0-relative coordinates, i.e. the first base on a chromosome is at position 0.
Coordinates can also be entered in the form:
chrX:151,283,001-151,290,000 optionalRegionNameThese are 1-relative coordinates, i.e. the first base on a chromosome is at position 1.