The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Endotoxin level< 0.100 Eu/µg
% SDS-PAGE. ab109064 is 0.2 µm filtered.
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Preparation and Storage
Stability and Storage
Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid repeated freeze / thaw cycles.
Constituents: PBS, pH 7.2
Plasma retinol binding protein 4
Plasma retinol-binding protein
Plasma retinol-binding protein(1-176)
Retinol binding protein 4
Retinol binding protein 4 interstitial
Retinol binding protein 4 plasma
FunctionDelivers retinol from the liver stores to the peripheral tissues. In plasma, the RBP-retinol complex interacts with transthyretin, this prevents its loss by filtration through the kidney glomeruli.
Involvement in diseaseDefects in RBP4 are a cause of retinol-binding protein deficiency (RBP deficiency) [MIM:180250]. This condition causes night vision problems. It produces a typical 'fundus xerophthalmicus', featuring a progressed atrophy of the retinal pigment epithelium.
Sequence similaritiesBelongs to the calycin superfamily. Lipocalin family.