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Journal of Neuroscience, Vol 7, 1550-1557, Copyright © 1987 by Society for Neuroscience
A rhodopsin gene expressed in photoreceptor cell R7 of the Drosophila eye: homologies with other signal-transducing molecules
CS Zuker, C Montell, K Jones, T Laverty and GM Rubin
We have isolated an opsin gene from D. melanogaster that is expressed in
the ultraviolet-sensitive photoreceptor cell R7 of the Drosophila compound
eye. This opsin gene contains no introns and encodes a 383 amino acid
polypeptide that is approximately 35% homologous to the blue absorbing
ninaE and Rh2 opsins, which are expressed in photoreceptor cells R1-6 and
R8, respectively. Amino acid homologies between these different opsins and
other signal-transducing molecules suggest an important role for the
conserved domains of rhodopsin in the transduction of extracellular
signals.
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