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Transient receptor potential ankyrin 1 (TRPA1) from tetrapod vertebrates except rodents are activated by high temperature with a relatively clear threshold. Our recent investigation suggested that a gradual heat activation without clear threshold might be a common feature for TRPA1 of fish. To approach which animal first acquires TRPA1 as a threshold detector instead of a gradual heat sensor, here, we focused on TRPA1 from axolotls (Ambystoma mexicanum). We isolated a full-length cDNA of axolotl transient receptor potential ankyrin 1 (axTRPA1) and studied the functional properties by two-electrode voltage clamp method using Xenopus oocytes. Allyl isothiocyanate, caffeine, methyl anthranilate and carvacrol activated axTRPA1 channels. The results indicated that axTRPA1 is heat activated with the average threshold of 39.7°C, suggesting that axTRPA1 already has acquired the functional property of land animals.
Pubmed ID: 30702505
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Maintains breeding colony of Mexican axolotls (Ambystoma mexicanum) that distributes axolotl embryos, larvae, and adults to laboratories and classrooms throughout the United States and abroad. Their mission is to serve biology research programs and educators by providing experimental material and expertise and by encouraging and facilitating the exchange of information and ideas.
View all literature mentionsMaintains breeding colony of Mexican axolotls (Ambystoma mexicanum) that distributes axolotl embryos, larvae, and adults to laboratories and classrooms throughout the United States and abroad. Their mission is to serve biology research programs and educators by providing experimental material and expertise and by encouraging and facilitating the exchange of information and ideas.
View all literature mentions