Putative tetramer of human CPAP (residues 897-1338)

2018-04-18 REL PDBe RCSB PDBe 2016-07-13 2016-09-14 2016-09-14 2018-04-18 Putative tetramer of human CPAP (residues 897-1338) Alvarez-Cabrera AL Delgado S Gil D Mortuza G Montoya G Sorzano CO Tang TK Carazo JM Alvarez-Cabrera AL Delgado S Gil-Carton D Mortuza GB Montoya G Sorzano CO Tang TK Carazo JM Electron Microscopy Structural Insights into CPAP Oligomeric Behavior: A Plausible Assembly Process of a Supramolecular Scaffold of the Centrosome. Front Mol Biosci CH 4 17 17 2017 28396859 doi:10.3389/fmolb.2017.00017 2296-889X EMD-8288 associated EM volume Putative homotetramer of human CPAP (residues 897-1338) Putative homotetramer of human CPAP (residues 897-1338) 0

Human CPAP (residues 897-1338) expresed in E. coli and purified by Immobilized Metal Affinity Chromatography (IMAC) and Size Exclusion Chromatography (SEC)

Homo sapiens Escherichia coli BL21(DE3) pST66Trc2-His (is a pET3a modified plasmid) 0.208 singleParticle particle 7.4 20.0 C8H18N2O4S HEPES 300.0 NaCl Sodiun chloride 0.25 C9H15O6P TCEP 10.0 C3H8O3 Glycerol

TCEP added to the buffer was prepared fresh

NEGATIVE Uranyl Formate (0.75%) Quantifoil. Formvar/Carbon COPPER 400 CARBON CONTINUOUS FORMVAR CONTINUOUS GLOW DISCHARGE

This human CPAP construct includes residues 897-1338

FEI TECNAI F20 SPOT SCAN BRIGHT FIELD TUNGSTEN HAIRPIN 200 2.26 FEI EAGLE (4k x 4k) 1 1.0 9.0 1 3048 Xmipp 3.1

RANSAC algorithm (Bioinformatics. 2014 Oct 15;30(20):2891-8)

C1 23.0 FSC 0.143 CUT-OFF Xmipp 3.1 Reconstruct Significant algorithm 3048 OTHER Xmipp 3.1 ANGULAR RECONSTITUTION RELION 1.2 Relion (accessed from Xmipp3.1) RELION 1.2 Relion (accessed from Xmipp3.1) emd_8288.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 60 60 60 -30 -30 -30 60 60 60 265.2 265.2 265.2 90.0 90.0 90.0 X Y Z -0.034058508 0.10883167 0.0011130079 0.007355001 4.42 4.42 4.42 0.031 AUTHOR ::::EMDATABANK.org::::D_1000222728:::: Contour level of 0.031 using Chimera