Eukaryotic initiation factor 3 (eIF3) is a multiprotein complex that functions during the initiation phase of eukaryotic translation. It is essential for most forms of cap-dependent and cap-independent translation initiation. In humans, eIF3 consists of 13 nonidentical subunits (eIF3a-m) with a combined molecular weight of ~800 kDa, making it the largest translation initiation factor. The eIF3 complex is broadly conserved across eukaryotes, but the conservation of individual subunits varies across organisms. For instance, while most mammalian eIF3 complexes are composed of 13 subunits, budding yeast's eIF3 has only six subunits (eIF3a, b, c, g, i, j). Eukaryotic translation initiation factor 3 subunit H (eIF3h) is a protein that in humans is encoded by the EIF3H gene. eIF3h has been shown to interact with eIF3a.
Background References
1. Guo X et al. EIF3H promotes aggressiveness of esophageal squamous cell carcinoma by modulating Snail stability. J Exp Clin Cancer Res. 2020 Aug
2. Zheng R et al. Exosomal circLPAR1 functions in colorectal cancer diagnosis and tumorigenesis through suppressing BRD4 via METTL3-eIF3h interaction. Mol Cancer. 2022 Feb
Eukaryotic translation initiation factor 3 subunit H antibody
MGC102958 antibody
Images
Western blot analysis of EIF3H on different lysates with Mouse anti-EIF3H antibody (HA601328) at 1/2,000 dilution.
Lane 1: HEK-293 cell lysate Lane 2: HeLa cell lysate Lane 3: K-562 cell lysate Lane 4: Jurkat cell lysate Lane 5: HepG2 cell lysate Lane 6: A549 cell lysate Lane 7: SK-Br-3 cell lysate Lane 8: MDA-MB-231 cell lysate Lane 9: MDA-MB-468 cell lysate Lane 10: MCF7 cell lysate Lane 11: RAW264.7 cell lysate Lane 12: NIH/3T3 cell lysate Lane 13: PC-12 cell lysate
Lysates/proteins at 20 µg/Lane.
Predicted band size: 40 kDa Observed band size: 40 kDa
Exposure time: 3 minutes; 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 (HA601328) at 1/2,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Mouse IgG - HRP Secondary Antibody (HA1006) at 1/50,000 dilution was used for 1 hour at room temperature.
Immunohistochemical analysis of paraffin-embedded human breast cancer tissue with Mouse anti-EIF3H antibody (HA601328) at 1/200 dilution.
The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HA601328) at 1/200 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Immunohistochemical analysis of paraffin-embedded human colon cancer tissue with Mouse anti-EIF3H antibody (HA601328) at 1/200 dilution.
The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HA601328) at 1/200 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
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