Table 1. Amino acid sequence identities between X. tropicalis and mammalian IP₃R isoforms.

Full-length polypeptides were aligned using the BLOSUM62 scoring matrix (ClustalW MSA). The following accession numbers were used for mammalian subtype sequence [Homo sapiens (Hs): IP₃R1, Q14643; IP₃R2, Q14571; IP₃R3, Q14573; Rattus norvegicus (Rn): IP₃R1, P29994; IP₃R2, P29995; IP₃R3, Q63269]. The in silico predicted X. tropicalis IP₃R1 displays 98% amino acid identity with the X. laevis IP₃R1 isolated from an oocyte cDNA library ([3], D14400).