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Related Concept Videos

Heterochromatin02:38

Heterochromatin

12.0K
The extent of chromatin compaction can be studied by staining chromatin using specific DNA binding dyes. Under the microscope, the dense-compacted regions that take up more dye are called heterochromatin. Heterochromatin is further classified into two forms – constitutive heterochromatin and facultative heterochromatin.
Constitutive heterochromatin: It is a highly compact region of chromatin that is mostly concentrated in the centromere and telomere. Unlike euchromatin, the amino acid at...
12.0K
Euchromatin01:01

Euchromatin

6.7K
The extent of chromatin compaction can be studied by staining chromatin using specific DNA binding dyes. Under the microscope, the dense-compacted regions take up more dye, appearing darker, while the less-compact areas take up less dye and appear lighter. Based on the compaction level, chromatins are classified into two primary forms – euchromatin and heterochromatin.
Euchromatin is the less dense region of the chromatin and stains lighter. Euchromatin contains histone H3 extensively...
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Chromatin Immunoprecipitation- ChIP02:36

Chromatin Immunoprecipitation- ChIP

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Chromatin immunoprecipitation, or ChIP, is an antibody-based technique used to identify sites on DNA that bind to transcription factors of interest or histone proteins. It also helps determine the type of histone modifications such as acetylation, phosphorylation, or methylation.
Types of ChIP
ChIP can be divided into two types - X-ChIP and N-ChIP. X-ChIP involves in vivo cross-linking of histones and regulatory proteins to DNA, fragmenting the DNA by sonication, and isolating the protein-DNA...
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Histone Modification02:32

Histone Modification

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The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
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Related Experiment Video

Updated: Apr 27, 2026

Comprehensive DNA Methylation Analysis Using a Methyl-CpG-binding Domain Capture-based Method in Chronic Lymphocytic Leukemia Patients
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Comprehensive DNA Methylation Analysis Using a Methyl-CpG-binding Domain Capture-based Method in Chronic Lymphocytic Leukemia Patients

Published on: June 16, 2017

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Classifying leukemia types with chromatin conformation data.

Mathieu Rousseau, Maria A Ferraiuolo, Jennifer L Crutchley

    Genome Biology
    |July 5, 2014
    PubMed
    Summary
    This summary is machine-generated.

    Chromatin conformation can classify human leukemia subtypes. This study demonstrates that 3D genome structure data accurately distinguishes leukemia types based on MLL fusion proteins.

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    An Integrated Platform for Genome-wide Mapping of Chromatin States Using High-throughput ChIP-sequencing in Tumor Tissues
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    A Combinatorial Single-cell Approach to Characterize the Molecular and Immunophenotypic Heterogeneity of Human Stem and Progenitor Populations
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    A Combinatorial Single-cell Approach to Characterize the Molecular and Immunophenotypic Heterogeneity of Human Stem and Progenitor Populations

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    Area of Science:

    • Genomics
    • Epigenetics
    • Computational Biology

    Background:

    • Genetic and epigenetic alterations impact genome 3D organization.
    • The role of chromatin conformation in human disease classification remains unexplored.

    Purpose of the Study:

    • To investigate the utility of chromatin conformation for classifying human leukemia.
    • To determine if 3D genome structure data can differentiate leukemia subtypes.

    Main Methods:

    • Chromosome conformation capture technology (5C) was used to map the HOXA gene cluster.
    • A support vector machine classifier (3D-SP) was trained and tested on 5C data.

    Main Results:

    • The 3D-SP classifier accurately distinguished leukemias with MLL-fusion proteins from those with wild-type MLL.
    • Classification of leukemia subtypes based on MLL fusion partners was achieved using only 5C data.

    Conclusions:

    • Chromatin conformation data holds significant value for leukemia subtype classification.
    • This study presents the first proof-of-principle for using 3D genome organization in disease classification.