Expression of CATHL5 across several regions in the bovine mammary gland. CATHL5 mRNA is constitutively expressed in alveolar, ductal, gland cistern and teat canal regions of the bovine mammary gland. Both healthy (and Staphylococcus aureus- infected) animals are included; CATHL5 was not significantly upregulated in the infected group. Samples were collected 48 hours after infection. Results are expressed as a ratio of reference gene expression (H3F3A) in each sample, with mean values indicated by horizontal lines.