Isolation of a human gene with protein sequence similarity to human and murine int-1 and the Drosophila segment polarity mutant wingless.

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Abstract
An expressed gene sequence which was identified by the isolation of a methylation free CpG island from human chromosome 7 has been cloned from a human lung cDNA library. The deduced protein sequence contains 360 amino acids and has several features of a secreted protein; it is cysteine rich with a signal peptide sequence and two potential asn-linked glycosylation sites. The protein sequence shows marked similarity with human and murine int-1 and their Drosophila homolog wingless (Dint-1). This human int-1 related protein, int-1 and Dint-1 have diverse patterns of expression, but the inferred structural similarities suggest that some of the functional characteristics of these proteins may be shared.