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Localization of genes on human chromosomes by studies of human-Chinese hamster somatic cell hybrids

โœ Scribed by Jongsma, Ans ;Someren, Harry ;Westerveld, Andries ;Hagemeijer, Ann ;Pearson, Peter


Publisher
Springer-Verlag
Year
1973
Weight
550 KB
Volume
20
Category
Article
ISSN
0018-7348

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โœฆ Synopsis


About 75 man-Chinese hamster hybrid clones were analysed for their human chromosome complement and simultaneously tested for human enzyme markers. Correlation of the presence of chromosomes and enzyme activity revealed assignments of the PGD linkage group to chromosome 1, ME1, PGM a and IPO-B to 6, LDH-A to ]1, LDH-B to 12 and IP0-A to 21.

The assignment of PGM a puts the HL-A loci on chromosome 6. Segregation of the enzymes of the PGD linkage group was demonstrated in a clone which had retained a deleted chromosome 1. Subclones of this line indicate that the loci for PGD and PGM~ are situated on the short arm or proximal part of the long arm of 1 and the locus for Pep-C on the long arm. Zusammen]assung. Etwa 75 Hybrid-Zellklone Mensch/Chinesischer Hamster wnrden in bezug auf den menschliehen Anteil ihres Chromosomensatzes analysiert und gleichzeitig auf menschliche Enzym-Marker untersucht. Die Korrelation zwischen Anwesenheit yon Chromosomen und Enzym-Markern lien die Folgerung zu, dab die PGD-Koppelungsgruppe auf Chromosom 1, ME 1, PGM a und IPO-B auf Nr. 6, LDH-A auf 11, LDH-B auf 12 und IPO-A auf Chromosom 21 gelegen ist.

Die Lokalisation yon PGM a l~gt die Folgerung zu, dab auch die HL-A-loci auf Chromosom 6 lokalisiert sind. Aufspaltung der Enzyme der PGD-Koppelungsgruppe konnte an einem Klon dargestellt werden, der ein deletiertes Chromosom 1 enthielt. Die Subklone dieser Linie zeigen, dag die loci fiir PGD und PGMt auf dem kurzen Arm oder dem proximalen Teil des langen Arms yon Chromosom Nr. 1 liegen, w~hrend der locus ffir Pep-C auf dem langen Arm gelegen ist.


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