First Author | Harper ME | Year | 1982 |
Journal | Am J Hum Genet | Volume | 34 |
Issue | 2 | Pages | 227-34 |
PubMed ID | 7072716 | Mgi Jnum | J:19262 |
Mgi Id | MGI:67449 | Citation | Harper ME, et al. (1982) Chromosomal localization of the human placental lactogen-growth hormone gene cluster to 17q22-24. Am J Hum Genet 34(2):227-34 |
abstractText | Recombinant plasmid HCS-pBR322 containing a 550-base-pair (bp) insert of cDNA to human placental lactogen (hPL) mRNA was 3H-labeled by nick translation and hybridized in situ to human chromosome preparations in the presence of 10% dextran sulfate. A high percentage of cells (80%) were found to exhibit label on the distal end of the long arm of chromosome 17. Silver grains on this region constituted 25.5% of all labeled sites, allowing assignment of the hPL and growth hormone (hGH) genes, which have over 90% nucleotide homology in their coding sequences, to 17q22-24. A gene copy number experiment showed that both genes are present in approximately three copies per haploid genome. |