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protein    音标拼音: [pr'ot,in]
n. 蛋白质
a. 蛋白质的

蛋白质蛋白质的

protein
n 1: any of a large group of nitrogenous organic compounds that
are essential constituents of living cells; consist of
polymers of amino acids; essential in the diet of animals
for growth and for repair of tissues; can be obtained from
meat and eggs and milk and legumes; "a diet high in
protein"

Protein \Pro"te*in\, n. (Physiol. Chem.)
In chemical analysis, the total nitrogenous material in
vegetable or animal substances, obtained by multiplying the
total nitrogen found by a factor, usually 6.25, assuming most
proteids to contain approximately 16 per cent of nitrogen.
[Webster 1913 Suppl.]


Proteid \Pro"te*id\, n. [Gr. prw^tos first.] (Physiol. Chem.)
An older, imprecise term replaced by {{protein}}.

Note: Proteid was defined in the 1913 Webster as "One of a
class of amorphous nitrogenous principles, containing,
as a rule, a small amount of sulphur; an albuminoid, as
blood fibrin, casein of milk, etc. Proteids are present
in nearly all animal fluids and make up the greater
part of animal tissues and organs. They are also
important constituents of vegetable tissues. See 2d
Note under {Food}." -- {Pro"te*id}, a.

Syn: protein.
[1913 Webster PJC]

{Defensive proteid} (Physiol. Chem.), one of a class of
proteid substances, present in some animal tissues and
fluids, that make the body immune to certain infectious
diseases by destroying or rendering inactive the toxic
products of bacterial growth; -- this is an older term
replaced by more precise modern immunological concepts
such as {antibody} and {immunoglobulin}. [archaic]
[Webster 1913 Suppl. PJC]


Protein \Pro"te*in\, n. [Gr. prw^tos first: cf. prwtei^on the
first place.] (Physiol. Chem.)
any polymer of an amino acid joined by peptide (amide) bonds.
Most natural proteins have alpha-amino acids as the monomeric
constituents. All classical enzymes are composed of protein,
and control most of the biochemical transformations carrie
dout in living cells. They may be soluble, as casein,
albumins, and other globular proteins, or insoluble (e. g.
"structural proteins"), as collagen or keratin. "albumin", an
older term for protein, is now used primarily to refer to
certain specific soluble globular proteins found in eggs or
blood serum, e.g. {bovine serum albumin}, the main soluble
protein in teh serum of cattle, used as an enzymatically
inert protein in biochemical research.

Note: In the 1913 dictionary, protein was defined as: "A body
now known as alkali albumin, but originally considered
to be the basis of all albuminous substances, whence
its name."
[1913 Webster PJC]

{Protein crystal}. (Bot.) See {Crystalloid}, n., 2.
[1913 Webster]


macromolecule \mac`ro*mol"e*cule\, n. (Chem., Biochem.)
A very large molecule, especially a polymer having from
hundreds to many thousands of atoms, such as {DNA}, {RNA},
{protein}, {polysaccharide}, {polyethylene}, {polycarbonate},
etc.
[PJC]


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  • High-protein diets: Are they safe? - Mayo Clinic
    Diets high in protein aren’t known to cause medical problems in healthy people But there are a wide range of these types of diets One extreme example is the carnivore diet which cuts out almost all carbohydrates in favor of animal-based foods But it is possible to have a high-protein diet that includes all the food groups
  • C-reactive protein test - Mayo Clinic
    C-reactive protein, also called CRP, is a protein made by the liver The level of CRP increases when there's inflammation in the body A simple blood test can check your C-reactive protein level A high-sensitivity C-reactive protein test, also called hs-CRP test, is more sensitive than a standard C
  • Nutrition for kids: Guidelines for a healthy diet - Mayo Clinic
    Nutrition for kids is based on the same ideas as nutrition for adults Everyone needs the same types of things, such as vitamins, minerals, carbohydrates, protein and fat These are called nutrients Children need different amounts of specific nutrients at different ages The best eating pattern for
  • Foamy urine: What does it mean? - Mayo Clinic
    Persistent foamy urine can be a sign of protein in your urine, called proteinuria, and could show that you have kidney disease
  • Different types of COVID-19 vaccines: How they work
    Protein subunit vaccine Subunit vaccines include only the parts of a virus that best stimulate your immune system This type of COVID-19 vaccine contains harmless S proteins Once your immune system recognizes the S proteins, it creates antibodies and defensive white blood cells
  • Urinalysis - Mayo Clinic
    A urinalysis involves checking the appearance, concentration and content of urine For example, a urinary tract infection can make urine look cloudy instead of clear Increased levels of protein in urine can be a sign of kidney disease Unusual urinalysis results often require more testing to find the source of the problem
  • Carbohydrates: How carbs fit into a healthy diet - Mayo Clinic
    As part of healthy eating, everyone needs the same type of things, such as vitamins, minerals, carbohydrates, protein and fat These are called nutrients Together, nutrients in food help the body work Carbohydrates are part of a healthy diet But some carb choices may be better for you than others
  • Preeclampsia - Symptoms causes - Mayo Clinic
    Preeclampsia is a complication of pregnancy With preeclampsia, you might have high blood pressure, high levels of protein in urine that indicate kidney damage (proteinuria), or other signs of organ damage Preeclampsia usually begins after 20 weeks of pregnancy in women whose blood pressure had previously been in the standard range Left untreated, preeclampsia can lead to serious — even
  • Cholesterol: Top foods to improve your numbers - Mayo Clinic
    Whey protein Whey protein, which is found in dairy products, may account for many of the health benefits attributed to dairy Studies have shown that whey protein given as a supplement lowers both LDL and total cholesterol as well as blood pressure You can find whey protein powders in health food stores and some grocery stores





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