carrier protein

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carrier protein

a multiunit transmembrane protein that possesses specific binding sites of a particular molecule and transports that substance across the cell membrane. It does so by reversibly altering its conformation after binding occurs and after resuming its original molecular conformation after transporting and releasing the substance on the other side of the membrane.
See also: uniport, symport, antiport.
Farlex Partner Medical Dictionary © Farlex 2012

binding protein

A generic term for a protein that reversibly binds to various small molecules, including amino acids, sugars, inorganic ions, vitamins and other molecules.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

carrier protein

1. A protein that elicits an immune response when coupled with a hapten.
2. A membrane protein for facilitated diffusion of a specific substance into a cell.
See also: protein
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Importantly, because the effective forward rate constant [k.sup.*.sub.f] has been amplified by the (very large) carrier-protein concentration, it is expected to be many orders of magnitude larger than the reverse rate constant [k.sub.r], so that the reaction between the biomarker and its carrier protein is strongly biased in the forward direction.
In the absence of carrier-protein binding, the steady-state concentration of biomarker in the circulation would be [p.sub.b]/[e.sub.b], where [p.sub.b] and [e.sub.b] are the production and elimination rates of the biomarker, respectively.
This report describes the application of the carrier-protein sequestration principle to the isolation and mass spectrometric identification of candidate low-molecular-weight proteins and peptides that exist in the serum of ovarian cancer patient disease study sets.
The current methodology applies carrier-protein sequestering to a disease category pool of combined sera.

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