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Genomics. 1998 Aug 1;51(3):445-51.

cDNA cloning and chromosomal localization of the human and mouse isoforms of Ksp-cadherin.

Author information

1
Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, 06520-8029, USA. thomson@biomed.med.yale.edu

Abstract

Ksp-cadherin is a novel kidney-specific member of the cadherin superfamily of cell adhesion molecules. We have determined the complete cDNA coding sequences of both the human and the mouse isoforms of Ksp-cadherin. The inferred amino acid sequences of the human and mouse isoforms are 79 and 75% identical to the originally described rabbit isoform of Ksp-cadherin (Thomson et al., 1995; J. Biol. Chem. 270, 17594-17601), respectively. The relative locations of cadherin-specific sequence motifs, putative N-glycosylation sites, and characteristic protein domains are entirely conserved in all three isoforms. Multiple organ Northern analyses indicate that, as in the rabbit, both the human and the mouse Ksp-cadherin transcripts appear to have distinct kidney-specific distributions. The human Ksp-cadherin gene (CDH16) maps to chromosome 16q21-proximal 16q22. The mouse Ksp-cadherin gene (Cdh16) was localized to a highly syntenic region of distal Chromosome 8. Both the human and the mouse Ksp-cadherin genes were localized to previously identified clusters of cadherin gene sequences, consistent with the hypothesis that most cadherin family members arose by gene duplication from a single ancestral gene at a relatively early stage in the evolution of the mammalian genome.

PMID:
9721215
DOI:
10.1006/geno.1998.5402
[Indexed for MEDLINE]

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