Table 1.

Summary of Uniprot protein sequences used in this study.

Uniprot ID	Description	Contains I29 domain?	Predicted subcellular location(s)	Orthogroup	Present in commercial product?a	Citation
O23791	Fruit bromelain precursor	Yes	Secreted (highly likely)	189	Yes	Muta et al. (1993)b
O24641	Bromelain precursor	Yes	Secreted (highly likely)	189	No	Muta, E., Okamoto, Y. and Ota, S. (1994)b
P14518	Stem bromelain	No	no prediction	189	Yes	Ritonja et al. (1989)
Q7DNA3	Bromelain	Yes	Nucleus	189	No	Muta et al. (1993)b
P80884	Ananain precursor	Yes	no prediction	189	Yes	Robertson, C. E. and Goodenough, P.W. (1997)b

^aDetermined by proteomic analysis.

^bDirect submission of protein sequence to Uniprot database.