It appears that a reaction that is empty, i.e. does not have products or reagents, is available in the microbial templates:
ModelSEEDDatabase/Templates$ grep rxn14003 */* | cut -f1,2,3,4
Core/Reactions.tsv:rxn14003 c|e = =
GramNegative/Reactions.tsv:rxn14003 c|e = =
GramPositive/Reactions.tsv:rxn14003 c|e = =
Human/Reactions.tsv:rxn14003 c0|e0 = =
Microbial/Reactions.tsv:rxn14003 c|e = =
Mycobacteria/Reactions.tsv:rxn14003 c0|e0 = =
To be clear, an "empty" reaction wasn't originally empty, but it's reagents and products balanced each other other. This is the reaction in this case, as defined in KEGG:
http://www.genome.jp/dbget-bin/www_bget?R00124
It appears that a reaction that is empty, i.e. does not have products or reagents, is available in the microbial templates:
To be clear, an "empty" reaction wasn't originally empty, but it's reagents and products balanced each other other. This is the reaction in this case, as defined in KEGG:
http://www.genome.jp/dbget-bin/www_bget?R00124