Digestion of 5-bromodeoxyuridine-substituted lambda-DNA by restriction endonucleases.
نویسندگان
چکیده
منابع مشابه
Digestion of DNA with restriction endonucleases.
Restriction endonucleases recognize short DNA sequences and cleave double-stranded DNA at specific sites within or adjacent to the recognition sequences. Restriction endonuclease cleavage of DNA into discrete fragments is one of the most basic procedures in molecular biology. The first method presented in this unit is the cleavage of a single DNA sample with a single restriction endonuclease. A...
متن کاملIncreased thermal stability of chromatin containing 5-bromodeoxyuridine-substituted DNA.
The replacement of thymidine by 5-bromodeoxyuridine in DNA leads to a greatly enhanced stability of chromatin from hepatoma tissue culture or embryonic rat pancreas, as measured by thermal chromatography on hydroxylapatite. The increased stability is directly correlated with the degree of bromodeoxyuridine substitution. On the other hand, the incorporation of bromodeoxyuridine into DNA results ...
متن کاملDNA polymorphism detectable by restriction endonucleases.
Data on DNA polymorphisms detected by restriction endonucleases are rapidly accumulating. With the aim of analyzing these data, several different measures of nucleon (DNA segment) diversity within and between populations are proposed, and statistical methods for estimating these quantities are developed. These statistical methods are applicable to both nuclear and nonnuclear DNAs. When evolutio...
متن کاملSequence-specific responses of restriction endonucleases to bromodeoxyuridine substitution in mammalian DNA.
Substitution of BrdU for dT in mammalian DNA alters the rates of DNA cleavage by restriction endonucleases in a manner that can be related to the specificity of cleavage. A formula is proposed that describes inhibitory and stimulatory contributions arising from the substitution of a Br atom for the CH3 group on T. The larger Br atom is postulated to sterically hinder the nuclease from binding t...
متن کاملCharacterization of the 5-hydroxymethylcytosine-specific DNA restriction endonucleases
In T4 bacteriophage, 5-hydroxymethylcytosine (5hmC) is incorporated into DNA during replication. In response, bacteria may have developed modification-dependent type IV restriction enzymes to defend the cell from T4-like infection. PvuRts1I was the first identified restriction enzyme to exhibit specificity toward hmC over 5-methylcytosine (5mC) and cytosine. By using PvuRts1I as the original me...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1978
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(17)34287-4