Table 4:

The pathway identified to produce 2,3-butanediol consists of two reaction steps, each catalyzed by a single enzyme. The table shows solubility confidence scores for enzymes from organisms used in Yan et al. and those for enzymes from organisms recommended by ProPASS.

Enzyme	Pathway identified by ProPASS				From Yan et al.
	Reviewed A-list organisms	Predicted sol. conf. score	All sequences (reviewed & non-reviewed)	Predicted sol. conf. score	Organisms	Predicted sol. conf. score
(R,R)-butanediol dehydrogenase	S. cerevisiae	87	L. lactis	100	B. subtilis	96
acetolactate decarboxylase	L. lactis	83	E. aerogenes	99	K. pneumoniae	98