CHD1

..Chromo-helicase/ATPase DNA-binding protein 1 (CHD1) is an ATP-dependent chromatin remodeling factor, containing two tandem chromodomains...

..Here we show that the double chromodomain unit of the Chd1 remodeler blocks DNA binding and activation of the ATPase motor in the absence of nucleosome substrates...

..This HU sensitivity can be suppressed by disruptions of the SET2 or CHD1 genes, encoding a histone H3(K36) methyltransferase and a chromatin remodeling factor, respectively...

..Null mutations of ISW1, ISW2, and CHD1 genes cause synthetic lethality in various stress conditions in yeast cells, revealing the first in vivo functions ..

..strategy to generate specifically modified chromatin templates and used these to study the interaction of the Chd1, Isw2 and RSC remodelling complexes with differentially acetylated nucleosomes...

..We find that the yeast Isw1a, Isw2, and Chd1 enzymes preferentially move nucleosomes toward more central locations on short DNA fragments whereas Isw1b does not...

..Thus, chromatin remodeling and transcriptional repression are distinct activities of Isw1...

..In the current study, we identify human CHD1, an ATP-dependent chromatin remodeling protein, as a factor that directly and selectively recognizes histone H3 ..

..We suggest that chromatin remodeling of termination regions is a necessary prelude to efficient Pol II termination...

..In higher eukaryotes, there are two distinct subfamilies of CHD proteins: CHD1 and CHD3/4...

b>CHD1 encodes an ATP-dependent chromatin remodeler with two chromodomains...

..This may argue that different levels of Cdk inactivation control spindle disassembly and chromatin decompaction. Mutation of lte1 also impaired rotation of the nucleus in early G1...

..in genes encoding members of the Paf1 complex, which regulates several cotranscriptional histone modifications, and Chd1, a chromatin remodeling enzyme...

The ATP-dependent chromatin-remodelling enzyme Chd1 is a 168-kDa protein consisting of a double chromodomain, Snf2-related ATPase domain, and a C-terminal DNA-binding domain...

..Here, we show that the combined action of Isw1 and Chd1 nucleosome-spacing enzymes is required to maintain this organization...

..We conclude that Ty5 targets integration by imitating the Esc1-Sir4 interaction and suggest molecular mimicry as a general mechanism that enables mobile elements to interface with cellular processes...

..nonoverlapping segments of Rtf1 are necessary for interaction with the ATP-dependent chromatin-remodeling protein Chd1, promoting covalent modification of histones H2B and H3, recruitment to active ORFs, and association with other ..

..Collectively, our results suggest that Rtf1 may function as a novel transcription elongation factor in yeast...

..These results demonstrate the utility of our in vitro system in studying interactions between chromatin-associated proteins and nucleosomal arrays...

..Here, we present evidence that the Saccharomyces cerevisiae chromatin remodeling factor Chd1 functions during transcription elongation...

..Here we identify the chromatin remodelling protein Chd1 (chromo-ATPase/helicase-DNA binding domain 1) as a component of SAGA and SLIK...

..H3K4Me3 at 3' positions was dynamic and could be rapidly removed when transcription recovered. Set1 and Chd1 are required for H3K4 trimethylation at 3' positions when transcription is inhibited by 6-AU...

..Here we show that the absence of the Isw1 and Chd1 ATP-dependent chromatin remodelling activities delays the maximal expression of ADH2 without impairing the ..

..These results establish links between a regulatory protein kinase and histone methylation and lead to a model in which the Bur1-Bur2 complex counteracts an inhibitory effect of Set2-dependent histone methylation...

..We suggest that Pol I transcription, like that of Pol II, may be modulated by specific chromatin structures...

b>Chd1- and ISWI-type chromatin remodelers can sense extranucleosomal DNA and preferentially shift nucleosomes toward longer stretches of available DNA...

..2) Determine how Isw2 complex is targeted and regulated in cells. (3) Identify additional functions of Isw2 complex. (4) Identify functions of Isw1 complex in cells. ..

..We will use our system to test our hypothesis that histone modifications are under dynamic regulation during cell cycle progression and play critical roles in DNA replication. ..

..We will use our system to test our hypothesis that histone modifications are under dynamic regulation during cell cycle progression and play critical roles in DNA replication. ..

..Our proposed studies elucidate how major regulators of chromatin structure function in cells, contributing to a better understanding of the molecular basis for human diseases. ..

..Our work will involve molecular techniques such as gene cloning, mutagenesis, PCR, biochemical fractionation, in vitro chromatin assembly and analysis, and protein chemistry, as well as yeast molecular genetics. ..

..abstract_text> ..

..The goal of our work is to understand the molecular mechanisms of DNA replication and replication stress response, which will help understand the molecular basis for these disease states. ..