Keith G. Danielson

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Thrombospondin (TSP) 2, and its close relative TSP1, are extracellular proteins whose functions are complex, poorly understood, and controversial. In an attempt to determine the function of TSP2, we disrupted the Thbs2 gene by homologous recombination in embryonic stem cells, and generated TSP2-null mice by blastocyst injection and appropriate breeding of(More)
Decorin is a member of the expanding group of widely distributed small leucine-rich proteoglycans that are expected to play important functions in tissue assembly. We report that mice harboring a targeted disruption of the decorin gene are viable but have fragile skin with markedly reduced tensile strength. Ultrastructural analysis revealed abnormal(More)
The Wnt-5A gene codes for a secreted cysteine-rich growth factor that mediates cell to cell signaling via a paracrine mechanism during development and ontogeny. We have recently determine the genomic organization and chromosomal mapping of the human Wnt-5A, and observed distinct patterns of expression in developing human embryos. In this report, we have(More)
Resolution of selenium-containing proteins synthesized by mouse mammary gland cells was achieved using the technique of two-dimensional gel electrophoresis. Radioactive selenium as H2[75Se]O3 was incorporated into relatively few proteins within mammary gland cells maintained in vitro and cells of mammary gland tissue in vivo. The pattern of selenoproteins(More)
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