Genome duplication occurs through the coordinated action of DNA replication and nucleosome assembly at replication forks. Defective nucleosome assembly causes DNA lesions by fork breakage that need to be repaired. In addition, it causes a loss of chromatin integrity.
View Article and Find Full Text PDFPrefoldin is a heterohexameric complex conserved from archaea to humans that plays a cochaperone role during the co-translational folding of actin and tubulin monomers. Additional functions of prefoldin have been described, including a positive contribution to transcription elongation and chromatin dynamics in yeast. Here we show that prefoldin perturbations provoked transcriptional alterations across the human genome.
View Article and Find Full Text PDFRecently, it was published that CYP3A5 contributes to chemotherapeutic drug resistance in a wide range of solid tumors, including hepatocellular carcinoma. However, is highly polymorphic and 90% of Caucasians are homozygous for the loss-of-function allele . Here, we evaluate the relationship between genotype and expression level of both CYP3A5 transcripts and protein in biopsies from 19 pairs of liver tumors and corresponding peritumoral tissue.
View Article and Find Full Text PDF