globulin

Definitions

  • WordNet 3.6
    • n globulin a family of proteins found in blood and milk and muscle and in plant seed
    • ***
Webster's Revised Unabridged Dictionary
    • n Globulin (Phisiol. Chem) An albuminous body, insoluble in water, but soluble in dilute solutions of salt. It is present in the red blood corpuscles united with hæmatin to form hæmoglobin. It is also found in the crystalline lens of the eye, and in blood serum, and is sometimes called crystallin. In the plural the word is applied to a group of proteid substances such as vitellin, myosin, fibrinogen, etc., all insoluble in water, but soluble in dilute salt solutions.
    • ***
Century Dictionary and Cyclopedia
    • n globulin The general name of a class of native proteids allied to the albumins, but distinguished from them by being insoluble in pure water. The globulins are soluble in weak acids and alkalis and dilute salt-solutions, but most of them are precipitated when their solutions are saturated with salt. They include vitellin, myosin, paraglobulin, and other bodies.
    • n globulin A protein body occurring, mixed with albumin, in the cells of the crystalline lens of the eye (whence it is also called crystallin). It resembles albumin, but differs from it in being precipitated from both acid and alkaline solutions by exact neutralization, and in being completely thrown down from its solutions by carbonic-acid gas.
    • n globulin In botany, a name given by Turpin to starch-granules, and by Kieser to chlorophyl-granules, and now applied to such proteids as are soluble in a strong solution of salt, but not in pure water.
    • ***
Chambers's Twentieth Century Dictionary
    • Globulin a substance closely allied to albumen, which forms the main ingredient of the blood globules, and also occurs in the crystalline lens of the eye
    • ***

Etymology

Webster's Revised Unabridged Dictionary
From Globule: cf. F. globuline,
Chambers's Twentieth Century Dictionary
O. Fr.,—L. globus; gleba, a clod.

Usage

In literature:

Some are proteids, albumins, and globulins.
"Aids to Forensic Medicine and Toxicology" by W. G. Aitchison Robertson
Proteids are divided into various subdivisions, as albumins, globulins, albuminates, proteoses and peptones, and insoluble proteids.
"Human Foods and Their Nutritive Value" by Harry Snyder
Globulin; an albumenoid proteid compound formed in the blood of insects.
"Explanation of Terms Used in Entomology" by John. B. Smith
Besides these mentioned, milk contains traces of another proteid of similar composition called globulin.
"The Bacillus of Long Life" by Loudon Douglas
The coagulating effect upon globulin is interesting.
"A Brief Account of Radio-activity" by Francis Preston Venable
The albumens and globulins associated together occur in the tissues of both animals and plants.
"Dietetics for Nurses" by Fairfax T. Proudfit
F = Globulin (squash seed).
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher
The other globulin, serum-globulin, is not coagulated until 75 deg.C.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1" by Various
***

In news:

Many human B-cell lymphomas are characterised by recurrent chromosomal translocations involving immuno-globulin (Ig) genes and different oncogene loci.
***

In science:

The typical size of a protein ranges from approximately 100 amino acids for small proteins to 500 for long immuno-globulins.
Protein folding and heteropolymers
Warner (Ed.), 185-226 (1980). 7. Nelson D. S. Studies on cytophilic antibodies. A mouse serum “antibody” having affinity for macrophages and fast alpha-globulin mobility. Austr. J. Exp.
Recent Developments in Immune Network Theory including a concept for an HIV Vaccine
***