PhastCons Interpreting output from UCSC Genome Browser and Variant Annotation Integrator

Question

[jxiang15]

Hi there,

I was analyzing some SNPs using the VAI on UCSC Browser and I'm not sure how to interpret the PhastCon output and I've read the tutorials and they weren't that helpful.

I get the following output

rs115302202    chr1:895820    C   ...   PHC100W=0.0393701;DISTANCE=147
rs115302202    chr1:895820    C   ...   PHC100W=0.0393701;DISTANCE=1009
rs115302202    chr1:895820    C   ...  PHC100W=0.0393701;DISTANCE=1189

etc.

Obviously, the PHC100W field is the PhastCons conservation score. However, what is the DISTANCE part?

Thanks