ISSN:
1439-1104
Keywords:
rhodopsin
;
opsin
;
photoreceptor
;
retina
;
dragonfly (Sympetrum frequens)
;
Drosophila
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract This paper describes the primary structure of two visual pigment opsins (DfRh1 and DfRh2) in the regionalized compound eye of a dragonfly,Sympetrum frequens. The amino acid sequences were deduced from the nucleotide sequences of cDNAs isolated from a cDNA library of the dragonfly retina. The two opsins both consist of 379 amino acids with 81.3% identity. Analysis of hydropathy indicated that the sequences have seven transmembrane domains like those of previously described opsins. Expression analysis using RT-PCR revealed that DfRh1 was present only in the dorsal region whereas DfRh2 was detected in both the dorsal and the ventral regions of the eye.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02331830
Permalink