Table 2. An overview of the origin and selected properties of the candidate genes.

Candidate	Organism name	Uniprot ID	Submitted Name	MW	Length
SialA	Actinomyces oris/Actinomyces viscosus*	Q44562*	NanH sialidase*	73,089	685 AA
SialH	Haemophilus parasuis	I7AJQ9	NanH sialidase	89,948	803 AA
SialM	Manheimia heamolytica	E2P8L4	NanH sialidase	89,245	795 AA
SialP	Pasteurella multocida	I1VL53**	NanH sialidase	89,217	798 AA

*The sequence of Actinomyces oris (sequence ID given in S1 Table) was cloned and expressed in this work, but is not available in UniProt. Hence, the UniProt ID and submitted of the closest homologue (A. viscosus; 97% sequence identity), which was deselected out of redundancy in this work (S1 Table), is given here.

**This UniProt entry has recently been made redundant; UniProt ID Q9EZV6 lists a 51 amino acids shorter P. multocida NanH sialidase with a sequence identity of 95%.