Rq. Yan et al., THE GENOMIC STRUCTURE OF THE STAT GENES - MULTIPLE EXONS IN COINCIDENT SITES IN STAT1 AND STAT2, Nucleic acids research, 23(3), 1995, pp. 459-463
The genomic structure of Stat2 has been determined and compared with a
large portion of the Stat1 gene. There are 24 exons in the Stat2 gene
and a matching number in very similar positions in the Stat1 gene. Th
us a very complicated genomic structure was presumably duplicated and
has been closely maintained throughout evolution.