. Author manuscript; available in PMC: 2010 Oct 28.

Published in final edited form as: J Am Chem Soc. 2009 Oct 28;131(42):15160–15169. doi: 10.1021/ja9034768

Table 1.

¹³C chemical shifts of the retinal carbons in wild-type rhodopsin and comparison with the retinal PSB model compound, N-(11-cis-retinylidene)-n-propyliminium trifluoroacetate^A in CDCl₃.

Carbon	Rho (ppm)	PSB^A (ppm)	△Rho (ppm)

5	131.0	132.1	−1.1
6	137.1	137.2	−0.1
7	132.8	132.3	0.5
8	139.3	137.2	2.1
9	148.9	147.8	1.1
10	128.0	126.4	1.6
11	141.6	138.7	2.9
12	132.2	128.7	3.5
13	168.5	165.8	2.7
14	122.1	120.5	1.6
15	165.7	163.3	2.4
16	30.6	28.9	1.7
17	26.1	28.9	−2.8
18	21.6	22.1	−0.5
19	14.7	12.6	2.1
20	16.4	18.8	−2.4

Data from Shriver et al.⁴⁵