Rockefeller University Press

Table I

Peptide	K_d^*	Internalization index^‡	Turn propensity^§
	mM
FDNPVY	0.14	1.0	1.0
FDNPVF	0.33	0.95	0.75
FDNPVL	0.63	0.30	ND
FDNPVS	1.4	0.20	0
FDNPVA	3.1	0.20	0

Peptide	K_d^*	Internalization index^‡	Turn propensity^§
	mM
FDNPVY	0.14	1.0	1.0
FDNPVF	0.33	0.95	0.75
FDNPVL	0.63	0.30	ND
FDNPVS	1.4	0.20	0
FDNPVA	3.1	0.20	0

The relative K_d calculated from Phe(3,5) aromatic proton peak intensities as described in the experimental procedures.

Normalized to the native receptor (14).

Using NOE magnitudes as an indicator for turn propensity, scaled to that for the NPVY peptide (2). ND, not determined.