REL RCSB RCSB RCSB 2014-03-10 2014-04-16 2014-05-07 2014-05-28 Lee JH Blattner C Wilson IA Ward AB HIV-1 envelope glycoprotein trimer, broadly neutralizing antibody, PGT151 Blattner C Lee JH Sliepen K Derking R Falkowska E de la Pena AT Cupo A Julien JP van Gils M Lee PS Peng W Paulson JC Poignard P Burton DR Moore JP Sanders RW Wilson IA Ward AB IMMUNITY 40 669 680 2014 24768348 doi:10.1016/j.immuni.2014.04.008 Fab fragment of HIV-1 Env antibody PGT151 in complex with soluble Env trimer BG505 SOSIP Fab fragment of HIV-1 Env antibody PGT151 in complex with soluble Env trimer BG505 SOSIP 2 Fabs bind one Env Trimer 2 0.520 HIV-1 Envelope glycoprotein Human immunodeficiency virus 1 BG505 HIV-1 420

The SOSIP trimer was co-expressed with Furin. The soluble trimer contains stabilizing mutations

1 Trimer true Homo sapiens HEK293F PGT151 Antibody Fab fragment Homo sapiens Human B-cells 0.0495

Heavy chain-light chain dimer of PGT151 Fab

2 dimer true Homo sapiens HEK293F singleParticle particle 0.01 7.4

50 mM Tris, 150 mM NaCl

NEGATIVE

Sample was applied to grid briefly, then stained for 30-45 seconds with 2% uranyl formate.

plasma-cleaned carbon coated 400 mesh grid

NONE OTHER FEI TECNAI 12 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 120 0.5 0.9 52000.0 SIDE ENTRY, EUCENTRIC 293 293 Objective astigmatism corrected at 52,000 times magnification

Data collected in 5 degree tilt increments

2013-03-20 TVIPS TEMCAM-F416 (4k x 4k) 0.205 482 30 0 45

not corrected

OTHER 22.0 OTHER XMIPP, EMAN, EMAN2, Sparx

Reference free 2D class averages generated using XMIPP and Sparx to sort particles. EMAN2 was used to generate an initial model followed by projection matching carried out in EMAN.

12364 3J5M A B E F I J RIGID BODY FIT Chimera

The PGV04 Fabs in the structure were removed prior to fitting.

REAL 4NUG H L RIGID BODY FIT Chimera

Two Fabs were fit independently of each other into the EM reconstruction.

REAL