Date published: 2025-11-23

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DIAPH3 Antibody (4D5): sc-293288

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Datasheets
  • DIAPH3 Antibody (4D5) is a mouse monoclonal IgG2a κ DIAPH3 antibody, cited in 3 publications, provided at 100 µg/ml
  • raised against amino acids 632-729 of DIAPH3 of human origin
  • recommended for detection of DIAPH3 of human origin by WB, IP, IF, IHC(P) and ELISA
  • At present, we have not yet completed the identification of the preferred secondary detection reagent(s) for DIAPH3 Antibody (4D5). This work is in progress.

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DIAPH3 Antibody (4D5) is a mouse monoclonal IgG2a kappa light chain antibody that detects DIAPH3 protein of human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), immunohistochemistry with paraffin-embedded sections (IHCP), and enzyme-linked immunosorbent assay (ELISA). DIAPH3 (4D5) antibody is available as the non-conjugated form. DIAPH3, also known as diaphanous homolog 3, DRF3, or mDia2, is a crucial 1,193 amino acid member of the formin homology protein family, playing a vital role in various cellular processes, particularly in actin dynamics. Located primarily in the cytoplasm and at the cell membrane, DIAPH3 is essential for actin polymerization, which is critical for maintaining cell shape, motility, and division. DIAPH3 interacts with Profilin, a key regulator of actin filament assembly, and the GTP-bound form of Rho (Rho-GTP), facilitating the recruitment of Profilin to the membrane in a Rho-dependent manner. This interaction is pivotal for the formation of stress fibers and the successful completion of cytokinesis, as well as for the transcriptional activation of the serum response factor (SRF). DIAPH3 activity is tightly regulated through its diaphanous autoregulatory domain (DAD) and Rho GTPase-binding domain (GBD); when these domains are bound intramolecularly, DIAPH3 remains inactive. Disruption of this bond allows the GBD to engage with Rho-GTP, thus activating DIAPH3. Notably, alternative splicing of the DIAPH3 gene results in seven distinct isoforms, each potentially contributing to DIAPH3′s diverse functional roles in cellular signaling and structure.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

DIAPH3 Antibody (4D5) References:

  1. Disruption of the Diaphanous-related formin Drf1 gene encoding mDia1 reveals a role for Drf3 as an effector for Cdc42.  |  Peng, J., et al. 2003. Curr Biol. 13: 534-45. PMID: 12676083
  2. Identification and characterization of human DIAPH3 gene in silico.  |  Katoh, M. and Katoh, M. 2004. Int J Mol Med. 13: 473-8. PMID: 14767582
  3. Identification and characterization of human FHOD3 gene in silico.  |  Katoh, M. and Katoh, M. 2004. Int J Mol Med. 13: 615-20. PMID: 15010865
  4. Identification and characterization of human FHDC1, mouse Fhdc1 and zebrafish fhdc1 genes in silico.  |  Katoh, M. and Katoh, M. 2004. Int J Mol Med. 13: 929-34. PMID: 15138637
  5. Identification and characterization of CDC50A, CDC50B and CDC50C genes in silico.  |  Katoh, Y. and Katoh, M. 2004. Oncol Rep. 12: 939-43. PMID: 15375526
  6. DIAPH3 promotes the tumorigenesis of lung adenocarcinoma.  |  Xiang, G., et al. 2019. Exp Cell Res. 385: 111662. PMID: 31586548
  7. DIAPH3 deficiency links microtubules to mitotic errors, defective neurogenesis, and brain dysfunction.  |  Lau, EO., et al. 2021. Elife. 10: PMID: 33899739
  8. Diaph3 underlines tumor cell heterogeneity in glioblastoma with implications for treatment modalities resistance.  |  Stoyanov, GS., et al. 2022. J Neurooncol. 157: 523-531. PMID: 35380294
  9. DIAPH3 condensates formed by liquid-liquid phase separation act as a regulatory hub for stress-induced actin cytoskeleton remodeling.  |  Zhang, K., et al. 2023. Cell Rep. 42: 111986. PMID: 36640348
  10. Super Enhancer-Regulated LncRNA LINC01089 Induces Alternative Splicing of DIAPH3 to Drive Hepatocellular Carcinoma Metastasis.  |  Su, T., et al. 2023. Cancer Res. 83: 4080-4094. PMID: 37756562
  11. DIAPH3 predicts survival of patients with MGMT-methylated glioblastoma.  |  Chehade, G., et al. 2024. Front Oncol. 14: 1359652. PMID: 38454929
  12. The DIAPH3 linker specifies a β-actin network that maintains RhoA and Myosin-II at the cytokinetic furrow.  |  Shah, R., et al. 2024. Nat Commun. 15: 5250. PMID: 38897998

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

DIAPH3 Antibody (4D5)

sc-293288
100 µg/ml
$316.00

Can sc-293288: DIAPH3 (4D5) monoclonal antibody be used to stain formalin-fixed, paraffin-embedded (FFPE) tissue sections?

Asked by: jenniferc
Thank you for your question. Yes, sc-293288: DIAPH3 (4D5) is recommended for use in IHC with paraffin-embedded sections. We recommend performing antigen retrieval with sodium citrate buffer (pH 6) and heat. The full protocol can be found here: https://www.scbt.com/scbt/resources/protocols/immunoperoxidase-staining
Answered by: Technical Support
Date published: 2021-03-19
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Rated 5 out of 5 by from Good for Western BlotAntibody works for Western blot with primary human dermal fibroblasts (HDF) cell lysate in published research. -SCBT QC
Date published: 2023-09-14
Rated 5 out of 5 by from great featureI bought this antibody to weeks ago and it works perfect!
Date published: 2019-04-16
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DIAPH3 Antibody (4D5) is rated 5.0 out of 5 by 2.
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