carrier protein

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carrier protein

[′kar·ē·ər ‚prō‚tēn]
(cell and molecular biology)
A membrane protein that transports a specific solute across the cell membrane by binding to the solute on one side of the membrane and then releasing it on the other.
References in periodicals archive ?
A lipid profile measures the amount of cholesterol present in lipid carrier proteins like Low Density Lipoprotein (LDL), High Density Lipoprotein (HDL) etc and fats (triglyceride) present in the blood.
Studying mechanisms of drug resistance, I realized that SoLute Carrier proteins (SLCs), not only represent the major class of small molecule transporters, but that they are encoded by one of the most neglected group of human genes.
Since triacylglycerols (triglycerides) are not available in liver, therefore, very low density lipoproteins (VLDL) are synthesized in liver in lesser amounts (triacylglyerides are incorporated in VLDLs and carrier proteins of these particles are apoprotein B which are also synthesized in liver).
Although CSPs share no sequence similarity with OBPs, these two groups of carrier proteins are characterized structurally by a hydrophilic surface and a hydrophobic core, respectively, to make them soluble in the sensillar lymph and to enable them to bind and carry olfactory ligands.
The two carrier protein domains of DhbF were determined by sequence homology and it is worthwhile to notice that carrier proteins can be distinguished not only by the moiety they have to carry (acyl, acyl carrier protein; aryl, ArCP; and peptidyl, PCP), but also by the signature of their highly conserved Ppant-binding site.
6) This is a significant number on its own, but the situation may be even worse when accounting for the fact that the majority of the hormone is bound to carrier proteins including sex hormone binding globulin (SHBG) and albumin and, as such, may not be available for tissues to use.
Without the carrier proteins, the polysaccharides alone would not trigger an adequate immune response in young children to protect them from the diseases.
PATH also will provide approximately USD480,000 (EUR344,456) to the FDA for the development of both the conjugation technology and tests to determine if the carrier proteins are properly linked to the polysaccharides.
2), (3) Heparin is said to inhibit acid phosphatase activity (4) and to affect the binding of triiodothyronine and thyroxine to their carrier proteins, thus producing falsely higher concentrations of these hormones.
The movement of electrons by carrier proteins, photolytic release of oxygen, hydrogen ions, and electrons are clear and easy for the instructor to show in photosynthesis.
Blood sampling cannot distinguish between free hormones and the ones delivered via carrier proteins.