Table 2.

Dimerization parameters for the three truncated Trk receptors, in the absence of ligand and in the presence of 380 nM ligand.

	Kdiss (rec.μm−2)	ΔG (kcal/mol)	Intrinsic FRET ($\tilde{\text{E}}$)	d(Å)
TM-Trk-A	2271 ± 310	−3.61 ± 0.09	0.96 ± 0.03	32 ± 5
ECTM-Trk-A	2127 ± 278	−3.65 ± 0.08	0.76 ± 0.04	45 ± 2
ECTM-Trk-A+NGF	25 ± 5	−6.28 ± 0.12	0.59 ± 0.01	51 ± 1
ECTM-Trk-B	2018 ± 134	−3.68 ± 0.04	0.82 ± 0.02	42 ± 1
ECTM-Trk B+BDNF	23 ± 2	−6.33 ± 0.06	0.50 ± 0.01	55 ± 1
ECTM-Trk-C	183 ± 29	−5.10 ± 0.09	0.57 ± 0.01	52 ± 1
ECTM-Trk-C+NT-3	15 ± 4	−6.59 ± 0.16	0.64 ± 0.01	50 ± 1