[Term] id: PR:000021912 name: activin/inhibin beta B chain isoform 1, signal peptide removed form def: "An activin/inhibin beta B chain isoform 1 that has had the signal peptide removed." [PRO:DNx] comment: Category=modification. synonym: "INHBB/iso:1/SigPep-" EXACT PRO-short-label [PRO:DNx] intersection_of: PR:000000417 ! activin/inhibin beta B chain isoform 1 intersection_of: lacks_part SO:0000418 ! signal_peptide