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An excellent model for studying heart development in vertebrates is the cardiac non-function lethal mutant (gene c) Mexican axolotl, Ambystoma mexicanum. In order to facilitate our analyses of the mutant system, we have undertaken a search for stage-specific molecular markers during embryonic development of the axolotl. We have concentrated on homeo☐ genes 'as suitable candidates for monitoring molecular...
The amino acid (aa) sequence of rabbit opsin from rod photoreceptor cells was determined by direct aa sequencing and conceptual translation from the cDNA. The cDNA (1198 bp) containing the complete coding region encodes a 348-aa opsin protein. Of the 16 rod cell opsins that are known, rabbit opsin is most similar to human opsin (96.3% identity at the aa level).
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