Fibroblast growth factor 1, (FGF-1) also known as acidic fibroblast growth factor (aFGF), is a growth factor and signaling protein encoded by the FGF1 gene. It is synthesized as a 155 amino acid polypeptide, whose mature form is a non-glycosylated 17-18 kDa protein. Fibroblast growth factor protein was first purified in 1975, but soon afterwards others using different conditions isolated acidic FGF, Heparin-binding growth factor-1, and Endothelial cell growth factor-1. Gene sequencing revealed that this group was actually the same growth factor and that FGF1 was a member of a family of FGF proteins.
Background References
1. Sancar G et al. FGF1 and insulin control lipolysis by convergent pathways. Cell Metab. 2022 Jan
2. Wang D et al. FGF1(deltaHBS) prevents diabetic cardiomyopathy by maintaining mitochondrial homeostasis and reducing oxidative stress via AMPK/Nur77 suppression. Signal Transduct Target Ther. 2021 Mar
Western blot analysis of FGF1 on different lysates with Rabbit anti-FGF1 antibody (HA724014) at 1/2,000 dilution.
Lane 1: U-87 MG cell lysate Lane 2: U-2 OS cell lysate
Lysates/proteins at 30 µg/Lane.
Predicted band size: 17 kDa Observed band size: 17 kDa
Exposure time: 1 minute 20 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA724014) at 1/2,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
Western blot analysis of FGF1 on different lysates with Rabbit anti-FGF1 antibody (HA724014) at 1/5,000 dilution.
Lane 1: Neuro-2a cell lysate (30 µg/Lane) Lane 2: Mouse kidney tissue lysate (30 µg/Lane) Lane 3: Mouse heart tissue lysate (30 µg/Lane) Lane 4: Rat heart tissue lysate (30 µg/Lane)
Predicted band size: 17 kDa Observed band size: 16 kDa
Exposure time: 40 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA724014) at 1/5,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
Flow cytometric analysis of U-87 MG cells labeling FGF1.
Cells were fixed and permeabilized. Then stained with the primary antibody (HA724014, 1/1,000) (red) compared with Rabbit IgG Isotype Control (green). After incubation of the primary antibody at +4℃ for an hour, the cells were stained with a iFluor™ 488 conjugate-Goat anti-Rabbit IgG Secondary antibody (HA1121) at 1/1,000 dilution for 30 minutes at +4℃. Unlabelled sample was used as a control (cells without incubation with primary antibody; black).
Flow cytometric analysis of Neuro-2a cells labeling FGF1.
Cells were fixed and permeabilized. Then stained with the primary antibody (HA724014, 1/1,000) (red) compared with Rabbit IgG Isotype Control (green). After incubation of the primary antibody at +4℃ for an hour, the cells were stained with a iFluor™ 488 conjugate-Goat anti-Rabbit IgG Secondary antibody (HA1121) at 1/1,000 dilution for 30 minutes at +4℃. Unlabelled sample was used as a control (cells without incubation with primary antibody; black).
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