HYDROLYSIS OF YEAST NUCLEIC ACID WITH AMMONIA
نویسندگان
چکیده
منابع مشابه
The Structure of Yeast Nucleic Acid
The tetranucleotide theory of the structure of yeast nucleic acid was first enunciated by the writer1 and was subsequently conclusively demonstrated by the experimental evidence furnished by Levene and Jacobs,2 ‘and by Levene and La Forge.3 The facts on which the theory was based were: first, the isolation of four nucleosides; second, the isolation of simple pyrimidine nucleotides. These were o...
متن کاملThe Structure of Yeast Nucleic Acid
Levene and Jacobs have formulated the structure of yeast nucleic acid as a tetranucleotide. The facts that led up to their formulation were: 1. The formation of four nucleosides on neutral or ammonia hydrolysis. 2. The formation of simpler nucleotides on hydrolysis with dilute mineral acids. 3. The presence of a phosphorus to nitrogen ratio which agreed quite well for t.he tetranucleotide theor...
متن کاملHydrolysis of the oligogalacturonides and pectic acid by yeast polygalacturonase.
Yeast polygalacturonase (YPG) is a constitutive type enzyme, produced exocellularly and free of pectinesterase by Saccharomyces jragilis (1). It has an optimal pH of 4.4 and appears to be specific in its activity towards polygalacturonides (2). YPG differs from preparations of commercial fungus polygalacturonase in that it cannot carry out a complete breakdown of pectic acid to galacturonic aci...
متن کاملThe metabolism of yeast nucleic acid in the rat.
Recent studies on the fate of labeled dietary purines in the rat have shown t,hat dietary adenine is a precursor of t,he adenine and of the guanine of tissue nucleic acids (l), but that guanine (2), hypoxanthine (3), and xanthine (3) are not utilized for nucleic acid synthesis. Similar experiments have shown that the pyrimidines, uracil, thymine (2), and cytosine (4) are not incorporated into t...
متن کاملstudy of dna interaction with ethylenediaminetetraacetic acid and sesamol food additives
برهمکنش dnaتیموس گاوی طبیعی (ct-dna) با اتیلن دی آمین تترااستات (edta)در بافرtris-hcl با 8/7 ph ( دراین ph،edta به نمک دی سدیم تبدیل می شود) وسسامول در بافر tris-hcl با4/7 ph مورد بررسی قرار گرفته است. edta و سسامول استفاده فراوانی در تکنولوژی غذایی و صنعت شیمیایی دارند. مدل اتصال dna مربوط بهedta بوسیله اسپکتروفتومتری جذب، دورنگ نمایی حلقوی(cd)، ویسکومتری وژل الکتروفورز بررسی شده است. طیفuv ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1916
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)87518-4