If we look in the PDB file 1aie.pdb (you can get it by asking MRS
to look for 1aie) you see in the JRNL records:
JRNL AUTH P.R.MITTL,P.CHENE,M.G.GRUTTER JRNL TITL CRYSTALLIZATION AND STRUCTURE SOLUTION OF P53 JRNL TITL 2 (RESIDUES 326-356) BY MOLECULAR REPLACEMENT USING JRNL TITL 3 AN NMR MODEL AS TEMPLATE. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 54 86 1998 |
So, they only solved a small part (residues 326-356) of a much larger molecule, and maintained the numbering scheme of that larger molecule).