protein

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

Note: 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. [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]


The Collaborative International Dictionary of English. 2000.

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  • Protein S — is a vitamin K dependent plasma glycoprotein synthesized in the liver. In the circulation, Protein S exists in two forms: a free form and a complex form bound to complement protein C4b. FunctionThe best characterized function of Protein S is its… …   Wikipedia

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  • Protein L — is a 36,000 dalton immunoglobulin binding protein isolated from the bacteria Peptostreptococcus magnus . Unlike Protein A and Protein G, which bind to the Fc region of immunoglobilins (antibodies), Protein L binds antibodies through light chain… …   Wikipedia

  • Protein A/G — is a recombinant fusion protein that combines IgG binding domains of both Protein A and Protein G. Protein A/G contains four Fc binding domains from Protein A and two from Protein G, yielding a final mass of 50,460 daltons. The binding of Protein …   Wikipedia

  • Protein C — Vorhandene Strukturdaten …   Deutsch Wikipedia

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  • Protein G — is an immunoglobulin binding protein expressed in group C and G Streptococcal bacteria much like Protein A but with differing specificities. It is a 65 kDa (G148 protein G) and a 58 kDa (C40 protein G) [1] cell surface protein that has found… …   Wikipedia

  • 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 …   The Collaborative International Dictionary of English

  • Protein-S — Vorhandene Strukturdaten: 1z6c Gr …   Deutsch Wikipedia

  • Protein S — Vorhandene Strukturdaten …   Deutsch Wikipedia

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