Assignment of the Gene for the β Subunit of Thyroid-Stimulating Hormone to the Short Arm of Human Chromosome 1
The chromosomal locations of the genes for the β subunit of human thyroid-stimulating hormone (TSH) and the glycoprotein hormone α subunit have been determined by restriction enzyme analysis of DNA extracted from rodent-human somatic cell hybrids. Human chorionic gonadotropin (CG) α -subunit cDNA an...
Saved in:
Published in | Proceedings of the National Academy of Sciences - PNAS Vol. 83; no. 6; pp. 1822 - 1826 |
---|---|
Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Washington, DC
National Academy of Sciences of the United States of America
01.03.1986
National Acad Sciences |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The chromosomal locations of the genes for the β subunit of human thyroid-stimulating hormone (TSH) and the glycoprotein hormone α subunit have been determined by restriction enzyme analysis of DNA extracted from rodent-human somatic cell hybrids. Human chorionic gonadotropin (CG) α -subunit cDNA and a cloned 0.9-kilobase (kb) fragment of the human TSH β -subunit gene were used as hybridization probes in the analysis of Southern blots of DNA extracted from rodent-human hybrid clones. Analysis of the segregation of 5- and 10-kb EcoRI fragments hybridizing to CG α -subunit cDNA confirmed the previous assignment of this gene to chromosome 6. Analysis of the patterns of segregation of a 2.3-kb EcoRI fragment containing human TSH β -subunit sequences permitted the assignment of the TSH β -subunit gene to human chromosome 1. The subregional assignment of TSH β subunit to chromosome 1p22 was made possible by the additional analysis of a set of hybrids containing partially overlapping segments of this chromosome. Human TSH β subunit is not syntenic with genes encoding the β subunits of CG, luteinizing hormone, or follicle-stimulating hormone and is assigned to a conserved linkage group that also contains the structural genes for the β subunit of nerve growth factor (NGFB) and the proto-oncogene N-ras (NRAS). |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0027-8424 1091-6490 |
DOI: | 10.1073/pnas.83.6.1822 |