Experiment OP - 10.1039/c2cp42738a/1

Article DOI 10.1039/c2cp42738a
Data DOI N/A
Internal ID 10.1039/c2cp42738a/1
Membrane composition (molar fraction)
POPC 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine 1
PAPC 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine 1
Solution composition Pure water
Temperature (K) 300
Total hydration 50 (mass %)
pH UNKNOWN
Reagent sources
POPC d31-POPC and POPC, Avanti Polar Lipids, Alabaster, AL, USA
H2O UNKNOWN
Sample protocol Lipid samples were prepared by dissolving in organic solvent followed by solvent evaporation and vacuum drying. Samples were hydrated to form multilamellar vesicles under controlled conditions. Then samples were centrifuged and supernatants were discarded. Precise total hydration is unknown. Paper cites for the closest protocol: 10.1529/biophysj.107.112847
NMR method PDLF:R18_1^7
NMR instrument Bruker Avance AVII-500 NMR with 4 mm CP-MAS HX probe
NMR RF heating correction heating was checked using methanol-filled rotor
NMR sign measured NONE
NMR details The following setup was used: spectral width of 149.5 ppm; refocused INEPT with t1 and t2 of 1.79 ms and 1.19 ms respectively; CP contact time equal to 700 ms; radiofrequency pulses set to give the nutation frequencies: 45.00 kHz (R1871 pulses), 63.45 kHz (13C 90- and 180-pulses), 63.45 kHz (1H INEPT pulses), 50 kHz (1H decoupling pulses), 50.76–63.45 kHz (1H CP ramp pulse during contact time), 53.66 kHz (13C CP pulse during contact time); t1 with increments equal to 399.6 ms (0% colesterol, 7% and 15% cholesterol) and 132.2 ms (34% colesterol, 50% and 60% cholesterol); for each t1 value, 256 scans were recorded during an acquisition time of 100 ms using 5 s recycle delay. MAS frequency 5kHz was used.
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Name Value
PH_METHOD UNKNOWN

Order Parameters POPC

View JSON main

No OP Data Available for PAPC