REL PDBe PDBe PDBe 2009-09-10 2009-09-24 2010-11-12 2016-05-25 Assembly and Allosteric Mechanism of Molluscan Hemocyanin Revealed by Cryo-EM Structure and Pseudo-atomic Model Xinghong D Junjie Z Jiangyong W Kunpeng L Donghua C Qinfen Z Wah C Oxygen binding,allosteric mechanism Zhang Q Dai X Cong Y Zhang J Chen DH Dougherty MT Wang J Ludtke SJ Schmid MF Chiu W Cryo-EM Structure of a Molluscan Hemocyanin Suggests Its Allosteric Mechanism STRUCTURE 21 604 613 2013 23541894 doi:10.1016/j.str.2013.02.018 Haliotis diversicolor (Gastropod, Mollusca) Hemocyanin isoform 1 (HdH1) Haliotis diversicolor (Gastropod, Mollusca) Hemocyanin isoform 1 (HdH1) Dodecamer 1 8 8 SDS-PAGE Hemocyanin Haliotis diversicolor Blood 8 8 20 Dodecamer false GO:0008152 IPR008922 singleParticle particle 7.5
0.2M NaCl , 50mM Tris-HCl, 5mM CaCl2, 5mM MgCl2, pH7.5
1.2/1.3 copper Quantifoil grids
 ETHANE 100 101 OTHER
Vitrification instrument: Vitrobot
Blot for 2 seconds before plunging JEOL 3200FSC FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 4.1 0.8 3.5 60000.0 JEOL 3200FSC CRYOHOLDER 101 Objective lens astigmatism was corrected at 400,000 times magnification JEOL in-column
MDS
KODAK SO-163 FILM NIKON SUPER COOLSCAN 9000 6.35 820 18 16. Eucentric
Particles were automatically boxed out from micrographs by e2boxer.py from EMAN2 single particle analysis software package, and CTF correction was carried out with EMAN program CTFIT. All the 3D reconstruction was done with EMAN1.8.
Each micrograph
 D5 7.8 FSC 0.5 CUT-OFF EMAN 41650 emd_1648.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 432 432 432 -216 -216 -216 432 432 432 457.92 457.92 457.92 90 90 90 X Y Z -0.824038 3.20481 0.140338 0.509272 1.06 1.06 1.06 1.37 EMDB The whole structure of Haliotis diversicolor Hemocyanin isoform 1 (HdH1) is a hollow cylindrical dodecamer. Each of its 20 subunits is composed of 8 functional units (FUs).
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