REL PDBe PDBe PDBe 2013-07-17 2013-08-07 2013-10-23 2013-10-23 Negative staining 3D-EM of the HA complex of Botulinum toxin type A Lee K Gu S Jin L Le TTN Cheng LW Strotmeier J Kruel AM Yao G Perry K Rummel A Jin R Botulinum toxin, HA complex Lee K Gu S Jin L Le TT Cheng LW Strotmeier J Kruel AM Yao G Perry K Rummel A Jin R Structure of a bimodular botulinum neurotoxin complex provides insights into its oral toxicity. PLOS PATHOG. 9 e1003690 e1003690 2013 24130488 doi:10.1371/journal.ppat.1003690 The trimeric HA complex of Botulinum toxin type A The trimeric HA complex of Botulinum toxin type A
The trimeric HA complex is monodisperse, and stable at both pH2.5 and pH7.4.
A trimer of 3 HA70, 3 HA17 and 6 HA33 3 0.47 0.47 Sedimentation Botulinum toxin type A HA17 Clostridium botulinum secreted true Escherichia coli BL21-RIL (DE3) pQE30, pET28a, pRSFDuet-1 Botulinum toxin type A HA33 Clostridium botulinum secreted true Escherichia coli BL21-RIL (DE3) pQE30, pET28a, pRSFDuet-1 Botulinum toxin type A HA70 Clostridium botulinum secreted true Escherichia coli BL21-RIL (DE3) pQE30, pET28a, pRSFDuet-1 singleParticle particle 0.01 7.6
50mM NaCl, 20mM Tris-HCL
 NEGATIVE
Grids with adsorbed protein floated on 1% w/v uranyl formate for 30 seconds
300 mesh copper grid with carbon support, glow discharged in vacuumed air
 NONE OTHER FEI TECNAI F20 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 200 2.0 1.5 3.6 70000.0 SIDE ENTRY, EUCENTRIC Objective lens astigmatism was corrected at 70,000 times magnification. 2011-10-04 GENERIC TVIPS (4k x 4k) 62 40 8. 0 0
Image processing was done using EMAN2.The particles were selected by a semi-automatic selection using e2boxer.
Each particle
 C3 OTHER 30.0 FSC 0.5 CUT-OFF EMAN2
C3 symmetry was imposed in refinement
3746 emd_2416.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 120 120 120 -60 -60 -60 120 120 120 513.60004 513.60004 513.60004 90.0 90.0 90.0 X Y Z -1.45518267 2.65945172 0.00273009 0.11532168 4.28 4.28 4.28 0.55 AUTHOR negative staining 3D-EM of the HA complex of Botulinum toxin A
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