dickkopf

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See also: Dickkopf

English

WOTD – 7 April 2023

Etymology

Borrowed from German Dickkopf (“stubborn person”, literally “thick head”), from the fact that Dickkopf-related protein 1 (DKK1), one of the dickkopf proteins, was found to be required for head formation in embryos. The word was coined by Andrei Glinka, Wei Wu, Hajo Delius, A. Paula Monaghan, Claudia Blumenstock, and Christof Niehrs in a 1998 article published in Nature: see the quotation.

Pronunciation

Noun

dickkopf (plural dickkopfs)

  1. (biochemistry) Any of a family of glycoproteins that are involved in the development of the embryo.
  • 2015 December 22, Kathryn L. McCabe et al., “Efficient Generation of Human Embryonic Stem Cell-derived Corneal Endothelial Cells by Directed Differentiation”, in PLOS ONE, volume 10, number 12, San Francisco, Calif.: PLOS, →DOI, →ISSN, →OCLC, article number e0145266:
    Some of the factors tested included: angiopoietin like protein 7 (ANGLPT7), epidermal growth factor (EGF), fibroblast growth factor 2 (FGF2), transforming growth factor beta 2 (TGF β 2), platelet derived growth factor b (PDGFB), and dickkopf related protein 2 (DKK2).
  • 2016, Joseph G. Sinkovics, “Eukaryotic Single Cells and the First Cell Communities Then and Now”, in RNA/DNA and Cancer, Cham, Switzerland: Springer, →DOI, →ISBN, page 81:
    Oncogenic mutations in the human genome disable of the 'β-catenin-destroyer complex' and delete the dickkopfs.

    • Translations

    References

    1. ^ Michael H. Kagey, Xi He (2017 December) “Rationale for Targeting the Wnt Signalling Modulator Dickkopf-1 for Oncology”, in British Journal of Pharmacology, volume 174, number 24, London: Wiley-Blackwell for the British Pharmacological Society, →DOI, →ISSN, →OCLC: “DKK1 was originally identified in Xenopus as an inhibitor of β‐catenin‐dependent Wnt signalling and an inducer of head formation during embryogenesis, a phenotype that coined the Dickkopf (German for ‘big head, stubborn’) nomenclature (Glinka et al., 1998).”

    Further reading

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