Native Human Serum Albumin protein

Specifications

Form

Liquid

Additional notes

Purified from normal Human Serum/Plasma obtained from healthy donors of US origin.

General info

Function

Binds water, Ca(2+), Na(+), K(+), fatty acids, hormones, bilirubin and drugs (Probable). Its main function is the regulation of the colloidal osmotic pressure of blood (Probable). Major zinc transporter in plasma, typically binds about 80% of all plasma zinc (PubMed : 19021548). Major calcium and magnesium transporter in plasma, binds approximately 45% of circulating calcium and magnesium in plasma (By similarity). Potentially has more than two calcium-binding sites and might additionally bind calcium in a non-specific manner (By similarity). The shared binding site between zinc and calcium at residue Asp-273 suggests a crosstalk between zinc and calcium transport in the blood (By similarity). The rank order of affinity is zinc > calcium > magnesium (By similarity). Binds to the bacterial siderophore enterobactin and inhibits enterobactin-mediated iron uptake of E.coli from ferric transferrin, and may thereby limit the utilization of iron and growth of enteric bacteria such as E.coli (PubMed : 6234017). Does not prevent iron uptake by the bacterial siderophore aerobactin (PubMed : 6234017).

Sequence similarities

Belongs to the ALB/AFP/VDB family.

Post-translational modifications

Kenitra variant is partially O-glycosylated at Thr-620. It has two new disulfide bonds Cys-600 to Cys-602 and Cys-601 to Cys-606.. Glycated in diabetic patients.. Phosphorylated by FAM20C in the extracellular medium.. Acetylated on Lys-223 by acetylsalicylic acid.