Restriction enzyme analysis of mitochondrial DNAs of petite mutants of yeast: Classification of petites, and deletion mapping of mitochondrial genes

1978 ◽  
Vol 163 (3) ◽  
pp. 257-275 ◽  
Author(s):  
Alfred Lewin ◽  
Richard Morimoto ◽  
Murray Rabinowitz ◽  
Hiroshi Fukuhara
2000 ◽  
Vol 48 (4) ◽  
pp. 477-484 ◽  
Author(s):  
Mária Benkő

The DNA of the prototype strains of ovine adenovirus (OAdV) 1 through 5 was analysed by restriction enzyme (RE) digestion. The RE patterns generated by Hindlll and PstI enzymes were characteristic of the examined strains. OAdV-2 and 3 resembled each other the most, and their EcoRI and Hindlll patterns seemed to be identical. Considering the number of comigrating fragments, serotypes OAdV-2, 3, 4 and 5 looked more closely related to each other than to OAdV-1. This finding was strengthened by Southern blot hybridisations probed with random Hindlll clones of OAdV-3. The estimated genome size of the examined OAdV types ranged between 31.9 and 32.8 kilobase pairs. The results supported the new genus classification of OAdVs.


1985 ◽  
Vol 5 (9) ◽  
pp. 2197-2203
Author(s):  
M S Lakshmikumaran ◽  
E D'Ambrosio ◽  
L A Laimins ◽  
D T Lin ◽  
A V Furano

The insulin 1, but not the insulin 2, locus is polymorphic (i.e., exhibits allelic variation) in rats. Restriction enzyme analysis and hybridization studies showed that the polymorphic region is 2.2 kilobases upstream of the insulin 1 coding region and is due to the presence or absence of an approximately 2.7-kilobase repeated DNA element. DNA sequence determination showed that this DNA element is a member of a long interspersed repeated DNA family (LINE) that is highly repeated (greater than 50,000 copies) and highly transcribed in the rat. Although the presence or absence of LINE sequences at the insulin 1 locus occurs in both the homozygous and heterozygous states, LINE-containing insulin 1 alleles are more prevalent in the rat population than are alleles without LINEs. Restriction enzyme analysis of the LINE-containing alleles indicated that at least two versions of the LINE sequence may be present at the insulin 1 locus in different rats. Either repeated transposition of LINE sequences or gene conversion between the resident insulin 1 LINE and other sequences in the genome are possible explanations for this.


Author(s):  
Dwight R. Johnson ◽  
Cheryl L. Romana ◽  
Carey D. Rehder ◽  
Joanne Dehnbostel ◽  
Edward L. Kaplan

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