Date published: 2026-3-17

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DDX3Y Antibody (B-4): sc-130421

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Datasheets
  • DDX3Y Antibody (B-4) is a mouse monoclonal IgG1 κ DDX3Y antibody, cited in 1 publications, provided at 100 µg/ml
  • raised against recombinant DDX3Y of human origin
  • recommended for detection of DDX3Y of mouse, rat and human origin by WB, IP, IF, IHC(P) and ELISA; may cross-react with DDX3X
  • At present, we have not yet completed the identification of the preferred secondary detection reagent(s) for DDX3Y Antibody (B-4). This work is in progress.
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DDX3Y Antibody (B-4) is a mouse monoclonal IgG1 kappa light chain antibody that detects DDX3Y protein of mouse, rat, and human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), immunohistochemistry with paraffin-embedded sections (IHCP), and enzyme-linked immunosorbent assay (ELISA). Anti-DDX3Y antibody (B-4) is available as the non-conjugated form. DDX3Y, a member of the DEAD box protein family, plays a crucial role in RNA metabolism and is essential for normal spermatogenesis, being exclusively expressed in the testis. DDX3Y regulates gene expression during male gamete development, and dysfunction can lead to male infertility. DEAD box proteins, characterized by the conserved Asp-Glu-Ala-Asp motif, are implicated in various cellular processes, including RNA secondary structure modifications and the assembly of ribosomes and spliceosomes. DDX3Y′s paralog, DDX3X, is found on the X chromosome and is involved in broader cellular functions, such as RNA splicing and cell cycle regulation, highlighting the evolutionary divergence and specialization of these proteins. DDX3Y′s unique expression pattern in the testis underscores its importance in male reproductive health, making anti-DDX3Y antibody (B-4) a valuable tool for researchers studying spermatogenesis and related disorders.

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

DDX3Y Antibody (B-4) References:

  1. The AZFa gene DBY (DDX3Y) is widely transcribed but the protein is limited to the male germ cells by translation control.  |  Ditton, HJ., et al. 2004. Hum Mol Genet. 13: 2333-41. PMID: 15294876
  2. DDX3, a DEAD box RNA helicase with tumor growth-suppressive property and transcriptional regulation activity of the p21waf1/cip1 promoter, is a candidate tumor suppressor.  |  Chao, CH., et al. 2006. Cancer Res. 66: 6579-88. PMID: 16818630
  3. Human DEAD-box ATPase DDX3 shows a relaxed nucleoside substrate specificity.  |  Franca, R., et al. 2007. Proteins. 67: 1128-37. PMID: 17357160
  4. Phosphorylation of threonine 204 of DEAD-box RNA helicase DDX3 by cyclin B/cdc2 in vitro.  |  Sekiguchi, T., et al. 2007. Biochem Biophys Res Commun. 356: 668-73. PMID: 17379183
  5. Expression, purification, crystallization and preliminary X-ray diffraction analysis of the DDX3 RNA helicase domain.  |  Rodamilans, B. and Montoya, G. 2007. Acta Crystallogr Sect F Struct Biol Cryst Commun. 63: 283-6. PMID: 17401195
  6. Transcriptional and post-transcriptional regulation of HIV-1 gene expression: role of cellular factors for Tat and Rev.  |  Nekhai, S. and Jeang, KT. 2006. Future Microbiol. 1: 417-26. PMID: 17661632
  7. Candidate tumor suppressor DDX3 RNA helicase specifically represses cap-dependent translation by acting as an eIF4E inhibitory protein.  |  Shih, JW., et al. 2008. Oncogene. 27: 700-14. PMID: 17667941
  8. DDX3 DEAD-box RNA helicase is required for hepatitis C virus RNA replication.  |  Ariumi, Y., et al. 2007. J Virol. 81: 13922-6. PMID: 17855521
  9. The DDX3 subfamily of the DEAD box helicases: divergent roles as unveiled by studying different organisms and in vitro assays.  |  Rosner, A. and Rinkevich, B. 2007. Curr Med Chem. 14: 2517-25. PMID: 17979704
  10. Progress in understanding the molecular functions of DDX3Y (DBY) in male germ cell development and maintenance.  |  Kotov, AA., et al. 2017. Biosci Trends. 11: 46-53. PMID: 28190795
  11. Sexually dimorphic RNA helicases DDX3X and DDX3Y differentially regulate RNA metabolism through phase separation.  |  Shen, H., et al. 2022. Mol Cell. 82: 2588-2603.e9. PMID: 35588748
  12. DDX3Y is likely the key spermatogenic factor in the AZFa region that contributes to human non-obstructive azoospermia.  |  Dicke, AK., et al. 2023. Commun Biol. 6: 350. PMID: 36997603

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

DDX3Y Antibody (B-4)

sc-130421
100 µg/ml
$339.00

Hi, I work on DDX3X and DDX3Y genes, and, since both are very similar paralogs, I want to be sure that your DDX3Y antibody is specific to DDX3Y and did not recognize DDX3X as well. Could you please send me a trial sample to test it in my human samples?

Asked by: MarineMSc
Thank you for your question. This antibody is currently available for purchase only, and not available in a sample size. This antibody may cross-react with DDX3X.
Answered by: Technical Support
Date published: 2019-05-01

Can sc-130421: DDX3Y (B-4) monoclonal antibody be used to stain formalin-fixed, paraffin-embedded (FFPE) tissue sections?

Asked by: Cweed
Thank you for your question. Yes, sc-130421: DDX3Y (B-4) 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: 2017-03-24
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Rated 5 out of 5 by from Good for Western BlotThis antibody has been used to detect DDX3Y in mouse testis and mouse ovary by western blot in published research. -SCBT QC
Date published: 2023-09-14
Rated 4 out of 5 by from Produced robust immunoperoxidase nuclearProduced robust immunoperoxidase nuclear and cytoplasmic staining in formalin-fixed, paraffin-embedded human testis tissue. -SCBT QC
Date published: 2014-07-28
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DDX3Y Antibody (B-4) is rated 4.5 out of 5 by 2.
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