Crystal structure of plant ferritin reveals a novel metal binding site that functions as a transit site for metal transfer in ferritin

PDB ID: 3A68
Gene source organism: Glycine max
Expression organism: Escherichia coli Deposition date: 2009-08-26
Classification: OXIDOREDUCTASE
Keywords: 4-helix bundle, ferritin, iron storage, cage-like protein, plant, Chloroplast, Iron, Metal-binding, Oxidoreductase, Plastid, Transit peptide
Technique: X-RAY DIFFRACTION
Assembly: 1
Resolution: 1.8
R-value: 0.1423
Metal site idBound amino acidsBound ligands IDs
3A68-CA-1 D1E2 GLU A.173 HOH A.1305 HOH A.2544 HOH A.4011 HOH X.4010 THR A.168
3A68-CA-2 D2E1 ASP A.164 GLU A.167 GLU H.167 HOH A.5001 HOH H.5002 HOH X.5004
3A68-CA-3 D2E2 GLU A.167 HOH A.4971 HOH H.5006 HOH X.4970 HOH X.5004 HOH X.5005 HOH X.5639
3A68-CA-4 D2E2 HOH A.1851 HOH A.5616 HOH A.5617 HOH J.6273
3A68-CA-5 E2 GLU B.173 HOH B.4021 HOH B.4022 HOH B.4023 HOH E.1890 THR B.168
3A68-CA-6 E2 GLU B.93 GLU B.96 HOH B.4903 HOH B.4905 HOH F.6083
3A68-CA-7 D2E2 HOH B.2290 HOH B.4485 HOH B.5247 HOH I.6194
3A68-CA-8 D2E2 ASP R.164 ASP S.164 GLU S.167 HOH C.5021 HOH R.5023 HOH S.5171
3A68-CA-9 E2 GLU C.167 HOH C.5173 HOH C.5177 HOH C.5270 HOH R.5176 HOH R.5672 HOH S.5174
3A68-CA-10 D1E2 HOH C.2707 HOH C.5469 HOH C.5470 HOH M.5471
3A68-CA-11 D2E2 GLU D.173 HOH D.4048 HOH D.4212 HOH D.4881 HOH W.4049 THR D.168
3A68-CA-12 D2 ASP D.164 ASP W.164 GLU D.167 GLU I.167 HOH D.5225 HOH I.5032 HOH I.5083 HOH W.5227