14:0 PE-DTPA(Cu) | 791225

1,2-dimyristoyl-sn-glycero-3-phosphoethanolamine-N-diethylenetriaminepentaacetic acid (copper salt)



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Inclusion of copper (Cu2+) ions in bicelles in the form of a lipid chelate resulted in a 10-fold T1 reduction and 2.7-fold increase in S/N of spectra for static experiments. This improvement would allow 2D experiments on membrane proteins in aligned lipid bilayers that typically take 3 days to be completed in <1.5 days. The technique is particularly beneficial to the study of membrane disrupting/permeating systems (such as antimicrobial peptides, toxins, amyloid peptides, and fusion peptides) whose concentration cannot be increased, as they result in nonlamellar conditions.

Figure kindly provided by Dr. Ayyalusamy Ramamoorthy, Department of Chemistry and Biophysics, University of Michigan.

Molecular Formula
Percent Composition
C 50.23%, H 8.43%, Cu 5.65%, N 8.72%, O 24.20%, P 2.76%
1 Years
Molecular Weight
Exact Mass
GIF Graphics File. 
GIF Graphics File. 
MDL Molfile. 
CDX File. 
Yamamoto, K., J. Xu, K.E. Kawulka, J.C. Vederas, and A. Ramamoorthy. (2010). Use of a copper-chelated lipid speeds up NMR measurements from membrane proteins. J Am Chem Soc 132:6929-31