subunit

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sub·u·nit

(sŭb'yū-nit),
1. A unit that forms a distinct part of a larger structure.
See also: monomer.
2. The single protein or polypeptide chain that can be separated from an oligomer protein without cleaving covalent bonds other than disulfide bridges between cysteinyl residues.
3. A single biopolymer separated from a larger multimeric structure.

subunit

(sub'u?nit)
In chemistry, a portion of a compound that represents a smaller part of the molecule than the remainder of the substance.
See: beta subunit
References in periodicals archive ?
The SDS-PAGE analysis of standard protein and protein subunits of CS is presented in Figure 1.
The team demonstrated that ARP re-arranges its protein subunits upon activation to allow the cytoskeleton to be extended.
The pore in the outer membrane which the toxins pass through is formed from protein subunits which are guided into place by a protein pilot," Professor Pickersgill said.
Vitamin B6 biosynthesis is a highly organised process involving an enzyme complex of 24 protein subunits.
As the virus reproduces inside the cell it has infected, new shells must assemble themselves out of a broth of identical protein subunits.
The RNA polymerase enzyme actually consists of 12 separate protein subunits.
ThermoVax (TM) is able to produce stable and potent vaccine formulations by combining precise lyophilization technology with conventional aluminum adjuvants, secondary adjuvants (for rapid onset of immunity), and protein subunits.
5,624,805, entitled "Uses for Antibodies Which Bind to Human Somatomedin Carrier Protein Subunits," was issued with claims relating to the use of antibodies to an insulin-like growth factor (IGF) binding protein in methods for determining levels of free (unbound) IGF.
The expression of the genes that make the protein subunits of ribosomes and other multi-protein complexes is not at all coordinated or co-regulated.
We are investigating how the individual protein subunits conform as they come off the intact complex.
To test that argument, Miller and Bada measured how amino acids--the building blocks of protein subunits called peptides -- survived at 350[deg.