Cryo-EM structure of alphaB-crystallin 24mer

REL PDBe PDBe PDBe 2011-04-13 2011-04-21 2011-12-01 2012-08-29 Cryo-EM structure of alphaB-crystallin 24mer Braun N Zacharias M Peschek J Kastenmueller A Hanzlik M Haslbeck M Buchner J Weinkauf S cryo electron microscopy, alphaB crystallin, molecular chaperone, protein aggregation, small heat shock protein, hybrid method Braun N Zacharias M Peschek J Kastenmueller A Hanzlik M Haslbeck M Buchner J Weinkauf S Multiple molecular architectures of the eye lens chaperone Alpha beta-crystallin elucidated by a triple hybrid approach PROC.NAT.ACAD.SCI.USA 108 20491 20496 2011 22143763 doi:10.1073/pnas.1111014108 2ygd FULLOVERLAP Human alphaB crystallin Human alphaB crystallin Tetrahedral 24mer 1 0.485 0.485 AlphaB crystallin Homo sapiens Human 0.485 24 24mer true Echerichia coli pET28b IPR012273 singleParticle particle 0.2 7.4

PBS buffer

NEGATIVE

Vitrification

Quantifoil multi A (400 mesh copper grid)

ETHANE 50 OTHER Blot for 1 second before plunging JEOL 2010HT SPOT SCAN BRIGHT FIELD LAB6 120 0.6 1.5 50000.0 47000.0 GATAN LIQUID NITROGEN 100 OTHER 8.47 33 10 Eucentric

Each micrograph, phase flipping

T OTHER 9.4 FSC 0.5 CUT-OFF Imagic 17560 878 emd_1894.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 128 128 128 0 0 0 128 128 128 230.4 230.4 230.4 90 90 90 X Y Z 0.0 0.0804485 0.00482793 0.00703659 1.8 1.8 1.8 0.004 AUTHOR Volume map of human alphaB-crystallin 24mer

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2KLR

PDB ID 2KLR was used for residues 69-150. Structure-elements for the remaining C- and N-termini were obtained by the found EM-Structure and structure prediction tools (fitted to the EM-Volume)

REAL