Location of MIB copies and B genes on the physical map of rhesus macaque Mhc. Blank and filled arrows indicate MIB and Mamu-B gene copies, respectively. BAC clones, from which MIBs and Mamu-B genes were retrieved, are positioned at the top of the figure. The names of the Mamu-B01 to -B19 genes – labelled as such by Daza-Vamenta and colleagues  and also annotated differently by Shiina and colleagues  – have been replaced by the latest Mamu-B loci/lineage names (B*) whenever possible; these represent "major'' or "minor'' expressed Mamu-B loci [15, 16]. Green arrow indicates transcription direction.