The GC percent track shows the percentage of G (guanine) and C (cytosine) bases in 5-base windows. High GC content is typically associated with gene-rich areas.
This track may be configured in a variety of ways to highlight different aspects of the displayed information. Click the "Graph configuration help" link for an explanation of the configuration options.
This track was generated following the UCSC GC_Percent Track Construction instructions, using the sequence information extracted from the multiple sequence alignments.
The GC Percent graph presentation is by Hiram Clawson. The data was automatically generated using the HAL tools package.