Two distinct modes for propagation of histone PTMs across the cell cycle

TY - JOUR

T1 - Two distinct modes for propagation of histone PTMs across the cell cycle

AU - Alabert, Constance

AU - Barth, Teresa K

AU - Reverón-Gómez, Nazaret

AU - Sidoli, Simone

AU - Schmidt, Andreas

AU - Jensen, Ole N

AU - Imhof, Axel

AU - Groth, Anja

N1 - © 2015 Alabert et al.; Published by Cold Spring Harbor Laboratory Press.

PY - 2015/3/15

Y1 - 2015/3/15

N2 - Epigenetic states defined by chromatin can be maintained through mitotic cell division. However, it remains unknown how histone-based information is transmitted. Here we combine nascent chromatin capture (NCC) and triple-SILAC (stable isotope labeling with amino acids in cell culture) labeling to track histone modifications and histone variants during DNA replication and across the cell cycle. We show that post-translational modifications (PTMs) are transmitted with parental histones to newly replicated DNA. Di- and trimethylation marks are diluted twofold upon DNA replication, as a consequence of new histone deposition. Importantly, within one cell cycle, all PTMs are restored. In general, new histones are modified to mirror the parental histones. However, H3K9 trimethylation (H3K9me3) and H3K27me3 are propagated by continuous modification of parental and new histones because the establishment of these marks extends over several cell generations. Together, our results reveal how histone marks propagate and demonstrate that chromatin states oscillate within the cell cycle.

AB - Epigenetic states defined by chromatin can be maintained through mitotic cell division. However, it remains unknown how histone-based information is transmitted. Here we combine nascent chromatin capture (NCC) and triple-SILAC (stable isotope labeling with amino acids in cell culture) labeling to track histone modifications and histone variants during DNA replication and across the cell cycle. We show that post-translational modifications (PTMs) are transmitted with parental histones to newly replicated DNA. Di- and trimethylation marks are diluted twofold upon DNA replication, as a consequence of new histone deposition. Importantly, within one cell cycle, all PTMs are restored. In general, new histones are modified to mirror the parental histones. However, H3K9 trimethylation (H3K9me3) and H3K27me3 are propagated by continuous modification of parental and new histones because the establishment of these marks extends over several cell generations. Together, our results reveal how histone marks propagate and demonstrate that chromatin states oscillate within the cell cycle.

U2 - 10.1101/gad.256354.114

DO - 10.1101/gad.256354.114

M3 - Journal article

C2 - 25792596

SN - 0890-9369

VL - 29

SP - 585

EP - 590

JO - Genes & Development

JF - Genes & Development

IS - 6

ER -