preferred_name: Initial activation of proMMP9 by MMPs (Caenorhabditis elegans)
preferred_name_lc: initial activation of prommp9 by mmps (caenorhabditis elegans)
label: Initial activation of proMMP9 by MMPs (Caenorhabditis elegans)
label_lc: initial activation of prommp9 by mmps (caenorhabditis elegans)