Activation of the C1 complex is under control of the C1-inhibitor. It forms a proteolytically inactive stoichiometric complex with the C1r or C1s proteases. May play a potentially crucial role in regulating important physiological pathways including complement activation, blood coagulation, fibrinolysis and the generation of kinins. Very efficient inhibitor of FXIIa. Inhibits chymotrypsin and kallikrein.
Background References
1. Drouet C et al. SERPING1 Variants and C1-INH Biological Function: A Close Relationship With C1-INH-HAE. Front Allergy. 2022 Mar
2. Shen Y et al. WNT inhibitor SP5-mediated SERPING1 suppresses lung adenocarcinoma progression via TSC2/mTOR pathway. Cell Death Dis. 2025 Feb
Western blot analysis of SERPING1 on Hep G2 (Human hepatocellular carcinoma cell) cell lysate with Rabbit anti-SERPING1 antibody (HA724756) at 1/2,500 dilution.
Lysates/proteins at 15 µg/Lane.
Exposure time: 20 seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature
Primary antibody: HA724756, 1/2,500 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: 55 kDa
Observed band size: 95-105kDa
Western blot analysis of SERPING1 on different lysates with Rabbit anti-SERPING1 antibody (HA724756) at 1/2,500 dilution.
Lane 1: Human serum lysate
Lane 2: Human urine lysate
Lysates/proteins at 15 µg/Lane.
Exposure time: 10 seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature
Primary antibody: HA724756, 1/2,500 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: 55 kDa
Observed band size: 95-105 kDa
Western blot analysis of SERPING1 on different lysates with Rabbit anti-SERPING1 antibody (HA724756) at 1/2,500 dilution.
Lane 1: Mouse liver tissue lysate
Lane 2: Rat liver tissue lysate
Lysates/proteins at 30 µg/Lane.
Exposure time: 20 seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature
Primary antibody: HA724756, 1/2,500 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: 55 kDa
Observed band size: 60-65 kDa
Western blot analysis of SERPING1 on different lysates with Rabbit anti-SERPING1 antibody (HA724756) at 1/2,500 dilution.
Lane 1: Mouse plasma lysate
Lane 2: Rat plasma lysate
Lysates/proteins at 15 µg/Lane.
Exposure time: 46 seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature
Primary antibody: HA724756, 1/2,500 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: 55 kDa
Observed band size: 95-105 kDa
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