Centromeric chromatin defines the site of kinetochore formation and ensures faithful chromosome segregation. Centromeric identity is epigenetically specified by the incorporation of CENP-A nucleosomes. DNA replication presents a challenge for inheritance of centromeric identity because nucleosomes are removed to allow for replication fork progression. Despite this challenge, CENP-A nucleosomes are stably retained through S phase. We used BioID to identify proteins transiently associated with CENP-A during DNA replication. We found that during S phase, HJURP transiently associates with centromeres and binds to pre-existing CENP-A, suggesting a distinct role for HJURP in CENP-A retention. We demonstrate that HJURP is required for centromeric nucleosome inheritance during S phase. HJURP co-purifies with the MCM2-7 helicase complex and, together with the MCM2 subunit, binds CENP-A simultaneously. Therefore, pre-existing CENP-A nucleosomes require an S phase function of the HJURP chaperone and interaction with MCM2 to ensure faithful inheritance of centromere identity through DNA replication.
Pubmed ID: 30293838 RIS Download
Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.
This polyclonal targets IgG (H + L)
View all literature mentionsThis polyclonal targets IgG (H+L)
View all literature mentionsThis unknown targets Mouse IgG (H+L)
View all literature mentionsThis polyclonal targets Histone H3, dimethyl (Lys4), dimethyl (Lys9)
View all literature mentionsThis monoclonal targets MCM5
View all literature mentionsThis unknown targets normal rabbit IgG
View all literature mentionsThis polyclonal targets Rabbit IgG (H+L)
View all literature mentionsThis polyclonal targets IgG
View all literature mentionsThis polyclonal secondary targets IgG (H+L)
View all literature mentionsThis polyclonal targets Cy3-Streptavidin
View all literature mentionsThis unknown targets Goat IgG (H+L)
View all literature mentionsThis monoclonal targets ASF1A
View all literature mentionsThis monoclonal targets MCM7 (141.2)
View all literature mentionsThis polyclonal targets MCM2
View all literature mentionsThis monoclonal targets HA.11
View all literature mentionsThis monoclonal targets CENPA
View all literature mentionsOpen source Java based image processing software program designed for scientific multidimensional images. ImageJ has been transformed to ImageJ2 application to improve data engine to be sufficient to analyze modern datasets.
View all literature mentionsSoftware for single-cell flow cytometry analysis. Its functions include management, display, manipulation, analysis and publication of the data stream produced by flow and mass cytometers.
View all literature mentionsStatistical analysis software that combines scientific graphing, comprehensive curve fitting (nonlinear regression), understandable statistics, and data organization. Designed for biological research applications in pharmacology, physiology, and other biological fields for data analysis, hypothesis testing, and modeling.
View all literature mentionsSoftware for identifying, characterizing, and quantifying proteins in biological samples. Can be used for range of proteomics workflows such as protein and peptide identification, PTM analysis, and isobaric mass tagging for quantification. Supports multiple database search algorithms and multiple dissociation techniques.
View all literature mentions