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Organization of ribosomal RNA genes in Mycoplasma capricolum

โœ Scribed by Sawada, Makoto ;Muto, Akira ;Iwami, Masafumi ;Yamao, Fumiaki ;Osawa, Syozo


Publisher
Springer
Year
1984
Tongue
English
Weight
909 KB
Volume
196
Category
Article
ISSN
0026-8925

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โœฆ Synopsis


DNA segments carrying rRNA genes of Mycoplasma capricolum have been cloned and characterized by restriction endonuclease mapping, DNA-RNA hybridization and nucleotide sequencing. The M. capricolum genome has two sets of rRNA gene clusters, where the arrangement is in the order of (5')16S-23S-5S(3'). The spacer region between 16S and 23S rDNA is extremely rich in AT and does not carry any tRNA genes.


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The number of ribosomal RNA genes in Myc
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We have examined the number of rRNA genes in Mycoplasma capricolum (KID) by hybridization of Bg/II-, EcoRI- and Xbal-digests of DNA to [3'-32P] 16S, 23S and 5S rRNAs according to the Southern procedure (1975). All the restriction gels gave two radioactive bands with three kinds of rRNA. Furthermore,

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