Table 1.

Measurement of Metal/TTP-2D Stoichiometry Using ICP-MS

Cu stoichiometry		Zn stoichiometry
Cu-TTP-2D	3.1 (±0.27a, ± 0.13b)	Zn-TTP-2D	2.3 (±0.41,a 0.10b)
apo-TTP-2D	0.034 (±0.013,a ±0.004b)	apo-TTP-2D	0.004 (±0.005,a 0.001b)
bufferc	0.057 (±0.097,a ±0.028b)	bufferc	0.027 (±0.010,a 0.002b)

^aSD, standard deviation.

^bSEM, estimated standard error of the mean (n = 12).

^cConditions: buffer 200 mM HEPES, 100 mM NaCl, pH 7.5 with 5 equiv of Cu or Zn.