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  2. Phosphoribosyl pyrophosphate - Wikipedia

    en.wikipedia.org/wiki/Phosphoribosyl_pyrophosphate

    Phosphoribosyl pyrophosphate (PRPP) is a pentose phosphate. It is a biochemical intermediate in the formation of purine nucleotides via inosine-5-monophosphate, as well as in pyrimidine nucleotide formation. Hence it is a building block for DNA and RNA.

  3. Purine metabolism - Wikipedia

    en.wikipedia.org/wiki/Purine_metabolism

    A key regulatory step is the production of 5-phospho-α-D-ribosyl 1-pyrophosphate by ribose-phosphate diphosphokinase, which is activated by inorganic phosphate and inactivated by purine ribonucleotides. It is not the committed step to purine synthesis because PRPP is also used in pyrimidine synthesis and salvage pathways.

  4. Slime coat - Wikipedia

    en.wikipedia.org/wiki/Slime_coat

    A closeup of the skin on an Eldon's galaxias. The slime coat (also fish slime, mucus layer or slime layer) is the coating of mucus covering the body of all fish.An important part of fish anatomy, it serves many functions, depending on species, ranging from locomotion, care and feeding of offspring, to resistance against diseases and parasites.

  5. Ribose-phosphate diphosphokinase - Wikipedia

    en.wikipedia.org/wiki/Ribose-phosphate...

    PyMol rendering of phosphoribosyl pyrophosphate synthetase I (human) as a homodimer, formed by two subunits (red and blue). Three homodimers form the active enzyme complex. Crystallization and X-ray diffraction studies elucidated the structure of the enzyme, which was isolated by cloning, protein expression, and purification techniques.

  6. A New Study Says Microplastics Are Widespread in Seafood ...

    www.aol.com/study-says-microplastics-widespread...

    Specifically, the study examined the edible tissue of fish often fished along the Oregon coast or sold in the state's markets: black rockfish, lingcod, Chinook salmon, Pacific herring, Pacific ...

  7. Ribose 5-phosphate - Wikipedia

    en.wikipedia.org/wiki/Ribose_5-phosphate

    Activation of ribose 5-phosphate to phosphoribosyl pyrophosphate by ribose-phosphate diphosphokinase. PRPP also plays an important role in pyrimidine ribonucleotide synthesis. During the fifth step of pyrimidine nucleotide synthesis, PRPP covalently links to orotate at the one-position carbon on the ribose unit.

  8. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Orotate phosphoribosyltransferase - Wikipedia

    en.wikipedia.org/wiki/Orotate_phosphoribosyl...

    It catalyzes the formation of orotidine 5'-monophosphate (OMP) from orotate and phosphoribosyl pyrophosphate. [1] In yeast and bacteria , orotate phosphoribosyltransferase is an independent enzyme with a unique gene coding for the protein, whereas in mammals and other multicellular organisms , the catalytic function is carried out by a domain ...