These were named hgc- ("high GC") A, B, C, D, E, F and G. Two other homologues were detected called HhcA and HhcB after "homologue of hgcC". A further RNA element, SscA RNA, was also identified.
In this context, these RNA molecules were given the designation hgc- ("high GC") A to G. Moreover, two other related molecules, HhcA and HhcB, which are similar to hgcC, were found. Additionally, an RNA element named SscA was also discovered.