Identification of a novel mammalian annexin. cDNA cloning, sequence analysis, and ubiquitous expression of the annexin XI gene.

Annexins (or lipocortins) are a family of at least 10 structurally related calcium- and phospholipid-binding proteins. Each protein consists of a conserved core domain having four (or eight) repeats of a segment approximately 70 amino acids in length and a nonconserved, usually short, amino-terminal domain. To date, amino acid sequences for eight distinct mammalian annexins have been predicted from cDNAs. This report describes an additional member of this family, bovine annexin XI, identified by cDNA cloning and sequence analysis. The 503-amino acid deduced protein consists of a core domain of four annexin repeats and a long amino-terminal domain rich in glycine, proline, and tyrosine. This novel annexin gene is expressed in a wide variety of tissues and isolated cells in culture.

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