Crotonylation: Redefining Histone Modification and Transcriptional Regulation

Concept

Crotonylation is a conserved, reversible lysine acylation modification. It involves the covalent attachment of a crotonyl group to histone/nonhistone lysine residues. Unlike acetylation, crotonylation features a larger, unsaturated acyl moiety. It acts as a potent epigenetic mark that drives chromatin opening and gene transcription, linking cellular metabolism to gene expression.

Research Frontier

Epigenetics research is expanding beyond acetylation and methylation. Crotonylation has emerged as a pivotal regulatory layer:

· Metabolismcoupled histone modification

· Potent transcriptional activation via chromatin remodeling

· Roles in cell differentiation, inflammation, and disease

· Crosstalk with other acylation marks

Research Significance

Crotonylation reshapes our understanding of epigenetic regulation:

· Unique chemical structure drives stronger chromatin relaxation than acetylation

· Metabolitedependent regulation links diet and metabolism to transcription

· Governs cell fate and inflammatory responses

· Emerging target for epigenetic therapies

Mechanisms and Product Applications

1. Discovery and Distinct Features

Identified in 2011, crotonylation is enriched at promoters/enhancers of active genes. It differs from acetylation via its larger hydrophobic unsaturated crotonyl group, conferring unique structural and functional effects.

2. Enzymatic Regulation

· Writer: p300/CBP (dual acetylcrotonyltransferase)

· Eraser: SIRT1/2/3 (decrotonylases)

· Metabolic control: CrotonylCoA availability dictates modification levels

3. Transcriptional Activation Mechanism

· Neutralizes histone positive charge → loosens chromatin

· Recruits YEATSdomain readers → promotes transcription

· Stronger activation potency than acetylation

4. Biological Functions

· Germ cell development

· Macrophage inflammation

· Metabolic signaling integration

Brand Mission

ANT BIO PTE. LTD. advances epigenetic research via its Starter sub-brand. Our crotonylation antibodies provide precise, reliable detection tools for studying gene regulation, metabolism, and disease.

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