A. Shibui et al., Isolation and chromosomal mapping of a novel human gene showing homology to Na+/PO4 cotransporter, J HUM GENET, 44(3), 1999, pp. 190-192
We isolated a cDNA clone which shows a significant similarity with the rena
l Na+/phosphate cotransporter (NPT) from a human intestine mucosa cDNA Libr
ary. The cDNA is 2626 bases long, with one open reading frame encoding a pr
otein of 497 amino acids. The deduced amino acids sequence shows an overall
homology of 48% with the human renal NPT1 protein. This gene is expressed
in intestine, colon, liver, and pancreas. Thus, this gene may code for inte
stinal type NPT or closely related proteins. The chromosomal location of th
e gene was determined on the chromosome 6p21.3-p22 region by polymerase cha
in reaction-based analysis with both a human/rodent mono-chromosomal hybrid
cell panel and a radiation hybrid mapping panel.