| slovo | definícia |
Protein crystal
(gcide) | 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] |
protein crystal
(gcide) | Crystalloid \Crys"tal*loid\, n.
1. (Chem.) A body which, in solution, diffuses readily
through animal membranes, and generally is capable of
being crystallized; -- opposed to colloid.
[1913 Webster]
2. (Bot.) One of the microscopic particles resembling
crystals, consisting of protein matter, which occur in
certain plant cells; -- called also protein crystal.
[1913 Webster] |
| | podobné slovo | definícia |
protein crystal
(gcide) | 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]Crystalloid \Crys"tal*loid\, n.
1. (Chem.) A body which, in solution, diffuses readily
through animal membranes, and generally is capable of
being crystallized; -- opposed to colloid.
[1913 Webster]
2. (Bot.) One of the microscopic particles resembling
crystals, consisting of protein matter, which occur in
certain plant cells; -- called also protein crystal.
[1913 Webster] |
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