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Alternative names
- alb
- ALBU_HUMAN
- Albumin (32 AA)
- Albumin (AA 34)
- cell growth inhibiting protein 42
- DKFZp779N1935
- GIG20
- GIG42
- growth-inhibiting protein 20
- OTTHUMP00000220436
- OTTHUMP00000220438
- OTTHUMP00000220439
- PRO0883
- PRO0903
- PRO1341
- PRO1708
- PRO2044
- PRO2619
- PRO2675
- Serum albumin
- UNQ696/PRO1341
see all
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Function
Serum albumin, the main protein of plasma, has a good binding capacity for water, Ca(2+), Na(+), K(+), fatty acids, hormones, bilirubin and drugs. Its main function is the regulation of the colloidal osmotic pressure of blood. Major zinc transporter in plasma, typically binds about 80% of all plasma zinc.
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Tissue specificity
Plasma.
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Involvement in disease
Defects in ALB are a cause of familial dysalbuminemic hyperthyroxinemia (FDH) [MIM:103600]. FDH is a form of euthyroid hyperthyroxinemia that is due to increased affinity of ALB for T(4). It is the most common cause of inherited euthyroid hyperthyroxinemia in Caucasian population.
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Sequence similarities
Belongs to the ALB/AFP/VDB family.
Contains 3 albumin domains.
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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.
Phosphorylation sites are present in the extracelllular medium.
Acetylated on Lys-223 by acetylsalicylic acid.
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Cellular localization
Secreted.
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Information by UniProt