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. 2001 Jul;10(7):1370–1380. doi: 10.1110/ps.780101

Fig. 4.

Fig. 4.

Nanospray spectra of 13 μM GclR protein in 0.1 M NH4HCO3, 1 mM DTT. (A) At 150V declustering voltage, one ion envelope, which is not well resolved. (B) At 250 V declustering voltage, the envelope resolves into the 32–37+ ions of an octamer, accompanied by the appearance of highly charged monomer ions and some evidence of heptamer. There is little evidence of ions from the tetramer or dimer.