Native PhastGel electrophoresis of variant PA oligomer complexes with LF. Native gel electrophoresis of post size‐exclusion PA oligomer complexes was performed. (1) uncleaved CLPA1, (2) uncleaved WTPA, (3) LF, (4) furin‐cleaved PA‐GN/D512K + LF, (5) MMP‐ and uPA‐cleaved CLPA1 + LF, (6) cleaved WTPA + LF, and (7) samples 5 and 6 mixed immediately before electrophoresis.