[Term] id: PR:000025127 name: serine hydroxymethyltransferase isoform 1 unmodified form def: "A serine hydroxymethyltransferase isoform 1 that has not been subjected to any co- or post-translational residue modification or peptide bond cleavage." [EcoCyc:GLYOHMETRANS-MONOMER] comment: Category=modification. synonym: "glyA/iso:1/UnMod" EXACT PRO-short-label [PRO:DNx] intersection_of: PR:000025126 ! serine hydroxymethyltransferase isoform 1 intersection_of: has_part PR:000021935 ! immature protein part intersection_of: lacks_part PR:000025513 ! modified amino-acid residue disjoint_from: PR:000018264 ! proteolytic cleavage product