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. Author manuscript; available in PMC: 2006 Mar 20.
Published in final edited form as: Biochemistry. 2001 Jul 3;40(26):7929–7936. doi: 10.1021/bi010670x

FIGURE 7.

FIGURE 7

Frequencies of the C=NH and C=ND stretching modes of rhodopsin, bathorhodopsin, lumirhodopsin, and metarhodopsin I. The error bars indicate that the frequencies in our microchip experiments are accurate within ±1 cm-1 for rhodopsin and ±2 cm-1 for lumirhodopsin and metarhodopsin I.