Serum albumin (ALB), the main protein in plasma, has a very good binding capacity for water, fatty acids, calcium, sodium, bilirubin, hormones, potassium and drugs. The primary function of ALB is to regulate the colloidal osmotic pressure of blood. Albumin is synthesized in the liver as preproalbumin, which has an N-terminal peptide that is removed before the nascent protein is released from the rough endoplasmic reticulum. The product, proalbumin, is in turn cleaved in the Golgi vesicles to produce the secreted form of albumin. Mutations in the ALB gene may result in familial dysalbuminemic hyperthyroxinemia (FDH), a form of euthyroid hyperthyroxinemia that is due to increased affinity of ALB for T4. FDH is the most common cause of inherited euthyroid hyperthyroxinemia in Caucasian populations.
Background References
1. Qu N et al. Albumin Nanoparticle-Based Drug Delivery Systems. Int J Nanomedicine. 2024 Jul
2. Spada A et al. The Uniqueness of Albumin as a Carrier in Nanodrug Delivery. Mol Pharm. 2021 May
Western blot analysis of Albumin on different lysates with Rabbit anti-Albumin antibody (HA724468) at 1/100,000 dilution.
Lane 1: Hep G2 (Human liver cancer cell) cell lysate
Lane 2: HeLa (Human cervical adenocarcinoma cell) cell lysate
Lysates/proteins at 15 µg/Lane.
Exposure time: 10 seconds; ECL: K1801
Negative expression of Albumin protein in HeLa cell is consistent with the predicted expression pattern.
Blocking: 5% NFDM/TBST, 1 hour at room temperature
Primary antibody: HA724468, 1/100,000 in primary antibody dilution buffer (K1803), overnight at 4 °C
Secondary antibody: Goat anti-Rabbit IgG-HRP (HA1001), 1/50,000 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 69 kDa
Observed band size: 69 kDa
Western blot analysis of Albumin on different lysates with Rabbit anti-Albumin antibody (HA724468) at 1/100,000 dilution.
Lane 1: Mouse liver tissue lysate
Lane 2: Rat liver tissue lysate
Lysates/proteins at 30 µg/Lane.
Exposure time: 10 seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature
Primary antibody: HA724468, 1/100,000 in primary antibody dilution buffer (K1803), overnight at 4 °C
Secondary antibody: Goat anti-Rabbit IgG-HRP (HA1001), 1/50,000 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 69 kDa
Observed band size: 69 kDa
☑ Relative expression (RE)
Application: Immunocytochemistry (IF-cell)
Species: Human
Sample: Hep G2 (Human liver cancer cell)/HeLa (Human cervical adenocarcinoma cell)
Fixation: 4% Paraformaldehyde, 15 minutes at room temperature.
Permeabilization: 0.1% Triton X-100, 15 minutes at room temperature.
Blocking: 1% BSA + 10% normal goat serum, 1 hour at room temperature.
Antibody dilution buffer: 1% BSA in PBST.
Primary antibody: HA724468, 1/100, overnight at 4°C.
Secondary antibody: Goat Anti-Rabbit IgG (iFluor™ 488, HA1121), 45 minutes at room temperature.
Counterstain: Beta tubulin (HA601187, Red), 1/100, overnight at 4℃. The nuclear counterstain was DAPI (Blue).
Negative expression of Albumin protein in HeLa cell is consistent with the predicted expression pattern.
Application: Immunohistochemistry (IHC-P)
Species: Rat
Tissue: Kidney
Sample: Paraffin-embedded section