10.1371/journal.pgen.1000804.g001 Jacqueline Dickson Jacqueline Dickson Humaira Gowher Humaira Gowher Ruslan Strogantsev Ruslan Strogantsev Miklos Gaszner Miklos Gaszner Alan Hair Alan Hair Gary Felsenfeld Gary Felsenfeld Adam G. West Adam G. West Schematic representation of the chicken <i>β-globin</i> cluster and surrounding loci. Public Library of Science 2010 genetics and genomics/chromosome biology genetics and genomics/epigenetics genetics and genomics/gene expression 2010-01-08 02:30:12 Figure https://plos.figshare.com/articles/figure/_Schematic_representation_of_the_chicken_946_globin_cluster_and_surrounding_loci_/539012 <p>Boxes represent the folate receptor (<i>FR</i>), <i>β-globin</i> (ρ, β<sup>H</sup>, β<sup>A</sup> and ε) and chicken olfactory receptor (<i>COR</i>) genes (not to scale). Arrows indicate DNaseI hypersensitive sites. The core of the HS4 element is expanded to show the positions of the five <i>in vitro</i> footprinted sequences <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1000804#pgen.1000804-Chung2" target="_blank">[11]</a>.</p>