Fig. 1

Coordinates in GRCH38. a Visualization of alternative loci in the IGH and the SERPIN region on chromosome 14 in GRCh38. The main path is shown in black and an alternative locus in blue. b A closer look at coordinates in the IGH region, with coordinates obtained from hierarchical partitioning (black) and sequential partitioning (red). On the alternative locus, the coordinates are the same, as this is a separate region path in both partitionings. Using the sequential partitioning, coordinates on the main path are more similar to those on the alternative loci