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About This Item
Form:
lyophilized powder (containing sodium chloride and sodium phosphate buffer salt)
Assay:
≥90% (SDS-PAGE)
Biological source:
human plasma
Mol wt:
~52 kDa
General description
Gc-Globulin, a member of the albumin superfamily, is the major plasma carrier of vitamin D and its metabolites. It is also, along with gelsolin, part of the extracellular actin scavenger system. Gc-globulin also binds monomeric actin (G-actin) with high affinity to scavenge actin released by necrotic cells, preventing its polymerization into filaments. Gc-globulin enhances the chemoattractant activity of C5a for inflammatory cells.
Gc-globulin or the vitamin D binding protein (DBP) is a 51-58 kDa multifunctional serum glycoprotein synthesized in large quantities by primarily in the liver. It is a member of the albumin gene family and has the characteristic multiple disulfide-bonded, triple domain structure.
Gc-globulin from human plasma is encoded by the gene GC, which is mapped to human chromosome 4q13.3.
Application
Gc-globulin is a multifunctional, albumin-like plasma protein that often requires cell surface binding to mediate some of its diverse functions. It has been used to anlayze its glycosylation patterns.
Gc-globulin from human plasma has been used:
- as a fluorescent probe for G-actin staining
- as a fluorescent probe to monitor steady-state rate of actin filament disassembly
- as a calibrator for liquid chromatography with mass spectrometry (LC-MS/MS)
Biochem/physiol Actions
Gc-Globulin, a member of the albumin superfamily, is the major plasma carrier of vitamin D and its metabolites. It is also, along with gelsolin, a part of the extracellular actin scavenger system. Gc-globulin also binds monomeric actin (G-actin) with high affinity to scavenge actin released by necrotic cells, preventing its polymerization into filaments. Gc-globulin enhances the chemoattractant activity of C5a for inflammatory cells.
Single nucleotide polymorphism in the gene GC is associated with deficiency of 25-hydroxyvitamin D [25(OH)D].
Preparation Note
Native Gc-globulin from human plasma
Disclaimer
RESEARCH USE ONLY. This product is regulated in France when intended to be used for scientific purposes, including for import and export activities (Article L 1211-1 paragraph 2 of the Public Health Code). The purchaser (i.e. enduser) is required to obtain an import authorization from the France Ministry of Research referred in the Article L1245-5-1 II. of Public Health Code. By ordering this product, you are confirming that you have obtained the proper import authorization.
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Phosphoinositide-dependent enrichment of actin monomers in dendritic spines regulates synapse development and plasticity
Lei W, et al.
The Journal of Cell Biology, 216(8), 2551-2564 (2017)
The GC, CYP2R1 and DHCR7 genes are associated with vitamin D levels in northeastern Han Chinese children
Zhang Y, et al.
Swiss Medical Weekly, 142(2930) (2012)
Acute homeostatic changes following Vitamin D2 supplementation
Berg AH, et al.
Journal of the Endocrine Society, 1(9), 1135-1149 (2017)