| Literature DB >> 1962753 |
M A Becker1, S A Heidler, G I Bell, S Seino, M M Le Beau, C A Westbrook, W Neuman, L J Shapiro, T K Mohandas, B J Roessler.
Abstract
Cloned cDNAs representing the entire, homologous (80%) translated sequences of human phosphoribosylpyrophosphate synthetase (PRS) 1 and PRS 2 cDNAs were utilized as probes to localize the corresponding human PRPS1 and PRPS2 genes, previously reported to be X chromosome linked. PRPS1 and PRPS2 loci mapped to the intervals Xq22-q24 and Xp22.2-p22.3, respectively, using a combination of in situ chromosomal hybridization and human x rodent somatic cell panel genomic DNA hybridization analyses. A PRPS1-related gene or pseudogene (PRPS1L2) was also identified using in situ chromosomal hybridization at 9q33-q34. Human HPRT and PRPS1 loci are not closely linked. Despite marked cDNA and deduced amino acid sequence homology, human PRS 1 and PRS 2 isoforms are encoded by genes widely separated on the X chromosome.Entities:
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Year: 1990 PMID： 1962753 DOI： 10.1016/0888-7543(90)90043-t
Source DB: PubMed Journal: Genomics ISSN： 0888-7543 Impact factor: 5.736