7NWA
CRYSTAL STRUCTURE OF HUMAN CYTOSOLIC BRANCHED-CHAIN AMINOTRANSFERASE (BCAT1) IN COMPLEX WITH PLP AND COMPOUND A
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | BESSY BEAMLINE 14.1 |
Synchrotron site | BESSY |
Beamline | 14.1 |
Temperature [K] | 100 |
Detector technology | PIXEL |
Collection date | 2014-11-20 |
Detector | DECTRIS PILATUS 6M |
Wavelength(s) | 0.9184 |
Spacegroup name | P 21 21 21 |
Unit cell lengths | 66.986, 106.316, 108.982 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 48.490 - 1.590 |
R-factor | 0.1696 |
Rwork | 0.168 |
R-free | 0.19890 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 2abj |
RMSD bond length | 0.009 |
RMSD bond angle | 1.543 |
Data reduction software | XDS (January 10, 2014) |
Data scaling software | pointless (1.9.16) |
Phasing software | PHASER |
Refinement software | REFMAC (5.8.0267) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 48.490 | 1.680 |
High resolution limit [Å] | 1.590 | 1.590 |
Rmeas | 0.057 | 0.572 |
Number of reflections | 103620 | 15559 |
<I/σ(I)> | 15.9 | 2.14 |
Completeness [%] | 98.3 | 92.3 |
Redundancy | 4.26 | 3.2 |
CC(1/2) | 0.999 | 0.751 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 8 | 293 | PROTEIN AT 17 MG/ML IN 10 MILLIMOLAR TRIS-HCL PH 8.0, 100 MILLIMOLAR NACL, 3 MILLIMOLAR DTT. PROTEIN PREINCUBATED OVER NIGHT AT 293 K WITH 10 MILLIMOLAR 3-PHENYL-PROPIONATE, 3 MILLIMOLAR DTT AND 1.5 MILLIMOLAR PLP. DROPS MADE FROM 1 MICROLITER PROTEIN AND 1 MICROLITER RESERVOIR (225 MILLIMOLAR MGCL2, 16-20 % (W/V) PEG 3350). INHIBITOR SOAKED INTO PREFORMED CRYSTALS FOR 5 DAYS AT 10 MILLIMOLAR. CRYO: RESERVOIR SOLUTION COMPLEMENTED WITH 20 % (V/V) GLYCEROL AND 10 MILLIMOLAR INHIBITOR |