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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
    In general, high-protein diets help with short-term weight loss by making you feel fuller But if you follow a high-protein diet for a long time, there are some health issues that may come up And researchers are still studying the long-term risks of high-protein diets that limit carbohydrates
  • 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
  • High blood protein Causes - Mayo Clinic
    What does it mean if you have high blood proteins? Learn about the role proteins play in your body and the possible causes of this blood test result
  • Protein in urine (proteinuria) Causes - Mayo Clinic
    Your kidneys filter waste products from your blood while keeping what your body needs — including proteins However, some diseases and conditions allow proteins to pass through the filters of your kidneys, causing protein in urine Conditions that can cause a temporary rise in the levels of protein in urine, but don't necessarily indicate kidney damage, include:
  • How do different types of COVID-19 vaccines work? - Mayo Clinic
    COVID-19 vaccines lower the risk of getting sick, seriously ill or dying from the disease But how do the different types of COVID-19 vaccines work? Each COVID-19 vaccine causes the immune system to create proteins called antibodies These proteins fight infection with the COVID-19 virus COVID-19 vaccines use a harmless version of a spikelike structure called an S protein on the surface of
  • Protein in urine (proteinuria) Causes - Mayo Clinic
    Protein in urine — also called proteinuria (pro-tee-NU-ree-uh) — is an excess of bloodborne proteins in urine Protein is one of the substances measured in a lab test to analyze the contents of urine (urinalysis)
  • Protein shakes: Good for weight loss? - Mayo Clinic
    Makers of protein shakes may say that their products help lower body fat or promote weight loss But protein shakes aren't a magic way to lose weight Some studies find that consuming a higher than usual amount of protein in your diet may offer benefits For example, eating or drinking products that are high in protein may help you lower body fat, keep lean muscle, feel full and lose weight
  • Monoclonal gammopathy of undetermined significance (MGUS)
    Overview Monoclonal gammopathy of undetermined significance (MGUS) is a condition in which an atypical protein is found in the blood The protein is called monoclonal protein or M protein This protein is made in the soft, blood-producing tissue in the center of bones This blood-producing tissue is bone marrow Monoclonal gammopathy of undetermined significance occurs most often in older men
  • Nephrotic syndrome - Symptoms causes - Mayo Clinic
    Nephrotic syndrome is a kidney disorder that causes your body to pass too much protein in your urine Nephrotic syndrome is usually caused by damage to the clusters of small blood vessels in your kidneys that filter waste and excess water from your blood The condition causes swelling, particularly in your feet and ankles, and increases the risk of other health problems
  • New FDA-approved blood tests for diagnosing Alzheimers disease
    A simple blood test done in a doctor's office can help to diagnose Alzheimer's disease Find out who can have the test, and how accurate results are





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