ArticleProtein science : a publication of the Protein Society2022
Mapping the interaction between Trim28 and the KRAB domain at the center of Trim28 silencing of endogenous retroviruses.
Article in Protein science : a publication of the Protein Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 15 citations in OpenAlex.
- Local SNP-explained methylation variation reveals genetically anchored and exposure-associated methylation architecture in the human brain.bioRxiv : the preprint server for biology · 2026Article
- Embedded CRISPRi Enhances Gene-Silencing Efficiency in Drosophila.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- CRM1-dependent nuclear export of TRIM28 promotes MAVS K48-linked ubiquitination and suppresses RIG-I-mediated antiviral response.Frontiers in immunology · 2026Article
- From CASP13 to the Nobel Prize: DeepMind's AlphaFold Journey in Revolutionizing Protein Structure Prediction and Beyond.Current protein & peptide science · 2026Review
- Retrotransposon Expression Is Upregulated in Adulthood and Suppressed during Regeneration of the Limb in the Axolotl (Ambystoma mexicanum).Advanced biology · 2025Article
- The HP1 box of KAP1 organizes HP1α for silencing of endogenous retroviral elements in embryonic stem cells.Nature communications · 2025Article
- KAP1 in antiviral immunity: dual roles in viral silencing and immune regulation.Frontiers in cellular and infection microbiology · 2025Review
- Insights into the protein domains of C-VI TRIM subfamily in viral infection.Frontiers in cellular and infection microbiology · 2025Review
- Human endogenous retroviruses and exogenous viral infections.Frontiers in cellular and infection microbiology · 2024Review
- Acetylation-Mimic Mutation of TRIM28-Lys304 to Gln Attenuates the Interaction with KRAB-Zinc-Finger Proteins and Affects Gene Expression in Leukemic K562 Cells.International journal of molecular sciences · 2023Article
- AlphaFold2 and its applications in the fields of biology and medicine.Signal transduction and targeted therapy · 2023Review
- Mapping the interaction between Trim28 and the KRAB domain at the center of Trim28 silencing of endogenous retroviruses.Protein science : a publication of the Protein Society · 2022Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Transcription of endogenous retroviral elements are tightly regulated during development by members of the KRAB-containing zinc finger proteins (KRAB-ZFPs) and the co-repressor Trim28 (also known as Kap-1 or Tif1β). KRAB-ZFPs form the largest family of transcription regulators in mammals and initiate transcriptional silencing by tethering Trim28 to a target locus. Subsequently, Trim28 recruits chromatin modifying effectors resulting in the formation of heterochromatin. In the present study, we identify surface exposed residues on the central six turns of the Trim28 coiled-coil region forming the binding interface for the KRAB domain. Using AlphaFold2 (AF2) we provide high confidence models of the interface between Trim28 and the KRAB domain and identified leucine 301 on each chain of the Trim28 monomer to act as a pin extending into a hydrophobic pocket on the KRAB domain surface. Site directed mutations in the Trim28-KRAB binding interface abolished binding to the KRAB domain. Our work provides a detailed understanding of the specific interactions between the KRAB domain and the Trim28 coiled-coil and how this interaction may be regulated during silencing events.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.