| D009705 |
Nucleosides |
Purine or pyrimidine bases attached to a ribose or deoxyribose. (From King & Stansfield, A Dictionary of Genetics, 4th ed) |
Nucleoside,Nucleoside Analog,Nucleoside Analogs,Analog, Nucleoside,Analogs, Nucleoside |
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| D009963 |
Orotic Acid |
An intermediate product in PYRIMIDINE synthesis which plays a role in chemical conversions between DIHYDROFOLATE and TETRAHYDROFOLATE. |
Potassium Orotate,Sodium Orotate,Zinc Orotate,Acid, Orotic,Orotate, Potassium,Orotate, Sodium,Orotate, Zinc |
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| D011687 |
Purines |
A series of heterocyclic compounds that are variously substituted in nature and are known also as purine bases. They include ADENINE and GUANINE, constituents of nucleic acids, as well as many alkaloids such as CAFFEINE and THEOPHYLLINE. Uric acid is the metabolic end product of purine metabolism. |
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| D011743 |
Pyrimidines |
A family of 6-membered heterocyclic compounds occurring in nature in a wide variety of forms. They include several nucleic acid constituents (CYTOSINE; THYMINE; and URACIL) and form the basic structure of the barbiturates. |
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| D011865 |
Radioisotope Dilution Technique |
Method for assessing flow through a system by injection of a known quantity of radionuclide into the system and monitoring its concentration over time at a specific point in the system. (From Dorland, 28th ed) |
Radioisotope Dilution Technic,Dilution Technic, Radioisotope,Dilution Technics, Radioisotope,Dilution Technique, Radioisotope,Dilution Techniques, Radioisotope,Radioisotope Dilution Technics,Radioisotope Dilution Techniques,Technic, Radioisotope Dilution,Technics, Radioisotope Dilution,Technique, Radioisotope Dilution,Techniques, Radioisotope Dilution |
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| D002247 |
Carbon Isotopes |
Stable carbon atoms that have the same atomic number as the element carbon but differ in atomic weight. C-13 is a stable carbon isotope. |
Carbon Isotope,Isotope, Carbon,Isotopes, Carbon |
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| D002845 |
Chromatography |
Techniques used to separate mixtures of substances based on differences in the relative affinities of the substances for mobile and stationary phases. A mobile phase (fluid or gas) passes through a column containing a stationary phase of porous solid or liquid coated on a solid support. Usage is both analytical for small amounts and preparative for bulk amounts. |
Chromatographies |
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| D003596 |
Cytosine |
A pyrimidine base that is a fundamental unit of nucleic acids. |
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| D000225 |
Adenine |
A purine base and a fundamental unit of ADENINE NUCLEOTIDES. |
Vitamin B 4,4, Vitamin B,B 4, Vitamin |
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| D014498 |
Uracil |
One of four nucleotide bases in the nucleic acid RNA. |
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