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Genomics. 1993 Nov;18(2):440-3.

Mapping of the phenol sulfotransferase gene (STP) to human chromosome 16p12.1-p11.2 and to mouse chromosome 7.

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  • 1Department of Genetics, Southwest Foundation for Biomedical Research, San Antonio, Texas 78228.


We have recently cloned a cDNA encoding the human phenol-preferring phenol sulfotransferase (P-PST) enzyme. An oligonucleotide primer pair based on the human STP (representing sulfotransferase, phenol-preferring) cDNA sequence was synthesized and was employed in polymerase chain reaction (PCR) amplification of human genomic DNA to identify a 525-bp DNA fragment. The DNA sequence of this portion of the STP gene, near the 5' end of the coding region, was determined. The amplified genomic fragment contained two small introns of 104 and 89 bp. When DNA samples from a human-hamster somatic cell hybrid panel were screened by PCR using these primers, only those hybrids that contained human chromosome 16 were positive for the 525-bp genomic fragment. To identify the specific region on chromosome 16 that contained the STP gene, PCR amplification reactions were performed on a human-mouse somatic cell hybrid panel containing defined portions of human chromosome 16. The results indicated that STP is localized proximal to the gene for protein kinase C, beta 1 polypeptide (PRKCB1), in the region from the distal portion of 16p11.2 to p12.1. The human STP gene maps near the locus for Batten disease (CLN3). Furthermore, we have determined by genotyping of murine interspecific backcross progeny that the homologous gene in mouse (Stp) localizes to the syntenic region of mouse chromosome 7 near the D7Mit8 (at 54 cM) and D7Bir1 markers.

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