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1 January 2000 Anuran Calcitonins are Diverse in Lower Vertebrates
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Abstract

We investigated the nucleotide sequences of cDNA fragments coding calcitonin from ultimobranchial glands in 2 species of urodelans (1 salamander and 1 newt) and 4 species of anurans (1 toad and 3 frogs) by the reverse transcription polymerase chain reaction (RT-PCR) method and rapid amplification of cDNA ends (RACE)-PCR method. The salamander and newt calcitonins were each 97% and 94% similar to the lungfish and caiman calcitonins that we have already reported, in the amino acid sequences. However, anuran calcitonins were not only dissimilar (63–81%) to the lungfish and caiman calcitonins but also diversified (59–91%) even among anurans. The sequence identity of toad calcitonin was always low (59–66%) among anurans.

Hidenori Sakamoto, Yuichi Sasayama, and Kunihiko Ueda "Anuran Calcitonins are Diverse in Lower Vertebrates," Zoological Science 17(1), 97-101, (1 January 2000). https://doi.org/10.2108/zsj.17.97
Received: 22 January 1999; Accepted: 1 August 1999; Published: 1 January 2000
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