[Term] id: PR:000000558 name: nodal protein isoform 1, signal peptide removed form def: "A nodal protein isoform 1 that has had the signal peptide removed to yield the mature protein." [PRO:CNA] comment: Category=modification. synonym: "NODAL/iso:1/SigPep-" EXACT PRO-short-label [PRO:DNx] synonym: "nodal protein isoform 1 cleaved 1" EXACT [] intersection_of: PR:000000291 ! nodal protein isoform 1 intersection_of: lacks_part SO:0000418 ! signal_peptide