[Genome] Human Promoters

[Mike Mitchell]

This is an example of known gene isoforms (splice variants).

The gene UBE2J2 has 4 known isoform, each one of these has it's own RefSeq
identifier and in this case they all share the same first exon. If you have
a look at hg18 at chr1:1,179,157-1,199,097 you will see the case that you
highlighted.

-- 
Mike Mitchell
Bioinformatics & Biostatistics Service
Cancer Research UK +44 (0) 207 269 3115