DNA excision repair protein ERCC-1 is a protein that in humans is encoded by the ERCC1 gene. Together with ERCC4, ERCC1 forms the ERCC1-XPF enzyme complex that participates in DNA repair and DNA recombination. Cells with disabling mutations in ERCC1 are more sensitive than normal to particular DNA damaging agents, including ultraviolet (UV) radiation and to chemicals that cause crosslinking between DNA strands. Genetically engineered mice with disabling mutations in ERCC1 have defects in DNA repair, accompanied by metabolic stress-induced changes in physiology that result in premature aging. Complete deletion of ERCC1 is incompatible with viability of mice, and no human individuals have been found with complete (homozygous) deletion of ERCC1. Rare individuals in the human population harbor inherited mutations that impair the function of ERCC1. When the normal genes are absent, these mutations can lead to human syndromes, including Cockayne syndrome (CS) and COFS.
Background References
1. Millis SZ et al. Molecular Profiling of Refractory Adrenocortical Cancers and Predictive Biomarkers to Therapy. Biomark Cancer 7:69-76 (2015).
2. Muallem MZ et al. ERCC1 expression as a predictor of resistance to platinum-based chemotherapy in primary ovarian cancer. Anticancer Res 34:393-9 (2014).
Western blot analysis of ERCC1 on different lysates with Rabbit anti-ERCC1 antibody (ET1703-19) at 1/1,000 dilution.
Lane 1: HeLa cell lysate Lane 2: A549 cell lysate Lane 3: 293T cell lysate Lane 4: SK-Br-3 cell lysate Lane 5: Raji cell lysate
Lysates/proteins at 15 µg/Lane.
Predicted band size: 33 kDa Observed band size: 38 kDa
Exposure time: 43 seconds;
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 (ET1703-19) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
ICC staining ERCC1 in Hela cells (red). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining ERCC1 in A549 cells (red). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining ERCC1 in HepG2 cells (red). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining ERCC1 in PANC-1 cells (red). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining ERCC1 in 293T cells (red). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Immunohistochemical analysis of paraffin-embedded human kidney tissue using anti-ERCC1 antibody. Counter stained with hematoxylin.
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