I have some doubts regarding the EXAC (Exome Aggregation Consortium) dataset. For a gene, if we click a variant it gives a detailed description about that particular variant. What does non coding transcript exon under Annotations mean?. And when you move the cursor to the allele number it shows total number of called genotypes. Does it refer to the depth to which it is sequenced? and what does site quality metrics mean?. Thank you.