Protein Domain Histochemistry (PDH)

Autor: Anna-Katharina Kurze, Maximillian Bockhorn, Christoph Wagener, Naghmeh Mortezai, Annegret Debus, Gerrit Wolters-Eisfeld, Axel Niendorf, Peter Nollau, Birgit Klampe
Rok vydání: 2012
Předmět:
Zdroj: Journal of Histochemistry & Cytochemistry; Vol 61
ISSN: 1551-5044
0022-1554
Popis: Specialized protein domains bind to posttranslational modifications (PTMs) of proteins, such as phosphorylation or glycosylation. When such PTM-binding protein domains are used as analytical tools, the functional states of cells and tissues can be determined with high precision. Here, we describe the use of recombinant CLEC10A (CD301), a human glycoreceptor of the C-type lectin family, for the detection of ligands in sections from formalin-fixed, paraffin-embedded normal and cancerous mammary tissues. A construct, in which part of the carbohydrate recognition domain (CRD) was deleted, was used as a negative control. In comparison to normal mammary glands, a pronounced staining of tumor tissues was observed. Because the construct with the truncated CRD did not show any tissue staining, the binding of the wild-type glycoreceptor can be attributed to its carbohydrate recognition domain. To distinguish our novel approach from immunohistochemistry, we propose the designation “protein domain histochemistry” (PDH).
Databáze: OpenAIRE