
Alignment of PTPRB exon 9 sequences from 49 vertebrate species. A single amino acid deletion shared by all xenarthrans and afrotherians is highlighted with a box. Full-length amino acid sequences are derived from draft genome sequences or traces. Sequences with truncated ends were generated by PCR using conserved primers in the exon flanking the indel. Asterisks indicate gaps in the sequence assemblies or traces.











