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  2. Proline organocatalysis - Wikipedia

    en.wikipedia.org/wiki/Proline_organocatalysis

    Proline organocatalysis is the use of proline as an organocatalyst in organic chemistry. This theme is often considered the starting point for the area of organocatalysis, even though early discoveries went unappreciated. [1] Modifications, such as MacMillan’s catalyst and Jorgensen's catalysts, proceed with excellent stereocontrol. [2]: 5574 [3]

  3. Proline - Wikipedia

    en.wikipedia.org/wiki/Proline

    The cyclic structure of proline's side chain locks the angle φ at approximately −65°. [19] Proline acts as a structural disruptor in the middle of regular secondary structure elements such as alpha helices and beta sheets; however, proline is commonly found as the first residue of an alpha helix and also in the edge strands of beta sheets.

  4. Arginine and proline metabolism - Wikipedia

    en.wikipedia.org/wiki/Arginine_and_proline...

    Arginine and proline metabolism is one of the central pathways for the biosynthesis of the amino acids arginine and proline from glutamate. The pathways linking arginine, glutamate, and proline are bidirectional. Thus, the net utilization or production of these amino acids is highly dependent on cell type and developmental stage.

  5. Organocatalysis - Wikipedia

    en.wikipedia.org/wiki/Organocatalysis

    In this reaction, naturally occurring chiral proline is the chiral catalyst in an aldol reaction. The starting material is an achiral triketone and it requires just 3% of proline to obtain the reaction product, a ketol in 93% enantiomeric excess. This is the first example of an amino acid-catalyzed asymmetric aldol reaction. [16] [17]

  6. Reference ranges for blood tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_blood...

    Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...

  7. What is sugar alcohol and is it bad for you? Here's the ...

    www.aol.com/sugar-alcohol-reduced-calorie...

    What is a normal blood sugar level? According to the CDC, a normal blood sugar level is below 140 mg/dL, or below 99 mg/dL if you haven’t eaten for 8 hours. Consult your doctor if you think you ...

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