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Dimeric Structure of full-length CrgA, a Cell Division Protein from Mycobacterium tuberculosis, in Lipid Bilayers
NMR Experiment Experiment Type Sample Contents Solvent Ionic Strength pH Pressure Temperature (K) Spectrometer 1 2D 1H-15N PISEMA 200 mg/L [U-15N]-Ala CrgA-Ala, 200 mg/L [U-15N]-Val CrgA-Val, 200 mg/L [U-15N]-Leu, [U-15N]-Thr CrgA-Leu,Thr, 200 mg/L [U-15N]-Met CrgA-Met, 200 mg/L [U-15N]-Phe CrgA-Phe, 200 mg/L [U-15N]-Trp CrgA-Trp, 200 mg/L [U-15N]-Gly CrgA-Gly, 200 mg/L [U-15N]-Ile CrgA-Ile, 200 mg/L [U-15N]-Tyr CrgA-Tyr Aqueous solution 5 mM 8.0 1 atm 289 Bruker AVANCE 600 2 2D 1H-15N PISEMA 1 g/L [U-15N]-NH4Cl CrgA-Arg, 1 g/L [U-15N]-NH4Cl CrgA-Asn,Lys,Ser Aqueous solution 5 mM 8.0 1 atm 289 Bruker AVANCE 600 3 2D 13C-13C DARR 200 mg/L [U-13C]-Met,[U-13C]-Ala CrgA-Met,Ala, 200 mg/L [U-13C]-Leu,[U-13C]-Tyr CrgA-Leu,Tyr, 200 mg/L [U-13C]-Phe CrgA-Phe, 200 mg/L [U-13C]-Met CrgA-Met, 200 mg/L [U-13C]-Val CrgA-Val, 200 mg/L [U-13C]-Lys CrgA-Lys Aqueous solution 5 mM 8.0 1 atm 265 Bruker AVANCE 600
NMR Spectrometer Information Spectrometer Manufacturer Model Field Strength 1 Bruker AVANCE 600 2 Bruker AVANCE 600
NMR Refinement Method Details Software molecular dynamics The authors state that the N-Ca-C bond angle of Thr20 in chain B is 160 deg, much higher than the ideal 110 deg due to strain at this type-VI turn. NAMD
NMR Ensemble Information Conformer Selection Criteria structures with the least restraint violations Conformers Calculated Total Number 13 Conformers Submitted Total Number 10 Representative Model 1 (closest to the average)
Computation: NMR Software # Classification Version Software Name Author 1 refinement NAMD 2.13 Phillips, Braun, Wang, Gumbart, Tajkhorshid, Villa, Chipot, Skeel, Kale and Schulten 2 structure calculation X-PLOR NIH 3.4 Schwieters, Kuszewski, Tjandra and Clore 3 chemical shift assignment TopSpin Bruker Biospin 4 peak picking TopSpin Bruker Biospin 5 data analysis TopSpin Bruker Biospin 6 processing TopSpin Bruker Biospin