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National Repository of Grey Literature	38 records found 38 - 38 jump to record:	Search took 0.01 seconds.

Structure, function and importace of BRCA 1protein
Hojný, Jan ; Falk, Martin (referee) ; Kleibl, Zdeněk (advisor)
Studies of factors contributed to the development of hereditary breast and ovary cancers lead to the discovery of Breast Cancer 1 gene (BRCA1). The protein product of this tumor suppressor gene is nuclear phosphoprotein that plays a critical role in DNA repair and it is required for genome integrity control. The BRCA1 protein is the key component for correct assembly of reparation complexes formed in sites of DNA double strand breaks. Furthermore, BRCA1 protein is implicated in regulation of cell cycle checkpoints and it is also involved in regulation of gene expression in response to DNA damage. These activities suggest that BRCA1 protein plays a crucial role in orchestration of intracellular response to genotoxic DNA damage. Loss of BRCA1 functions leads to the DNA-damage repair mechanisms failure resulting in genomic instability and a tolerance of genomic alterations in affected cells. The genomic instability is the initial step toward early malignant transformation of cells lacking BRCA1 proteins. The aim of this work is to summarize the information about structure, functions known and the importance of BRCA1 protein with respect to the current discoveries enabling elucidation of versatile BRCA1-containing multiprotein complexes in which BRCA1 protein acts as the multiplatform interacting...

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