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Overview of the numbers of GPCRs identified in the transcriptomes from T. cystophora and A. alata
| Type of GPCR | Number in T. cystophora | Number in A. alata |
|---|---|---|
| Presumed biogenic amine receptors | 28 | 16 |
| Presumed neuropeptide receptors | 22 | 18 |
| Opsins | 5 | 2 |
| LGRs | 2 | 1 |
