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- PDB-6o22: Structure of Asf1-H3:H4-Rtt109-Vps75 histone chaperone-lysine ace... -
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Basic information
Entry | Database: PDB / ID: 6o22 | ||||||
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Title | Structure of Asf1-H3:H4-Rtt109-Vps75 histone chaperone-lysine acetyltransferase complex with the histone substrate. | ||||||
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![]() | CHAPERONE | ||||||
Function / homology | ![]() Formation of Senescence-Associated Heterochromatin Foci (SAHF) / H3 histone acetyltransferase complex / regulation of double-strand break repair via nonhomologous end joining / maintenance of rDNA / acetyltransferase activator activity / replication-born double-strand break repair via sister chromatid exchange / transposable element silencing / histone H3 acetyltransferase activity / DNA replication-dependent chromatin assembly / nucleosome disassembly ...Formation of Senescence-Associated Heterochromatin Foci (SAHF) / H3 histone acetyltransferase complex / regulation of double-strand break repair via nonhomologous end joining / maintenance of rDNA / acetyltransferase activator activity / replication-born double-strand break repair via sister chromatid exchange / transposable element silencing / histone H3 acetyltransferase activity / DNA replication-dependent chromatin assembly / nucleosome disassembly / silent mating-type cassette heterochromatin formation / protein-lysine-acetyltransferase activity / cellular response to stress / negative regulation of DNA damage checkpoint / subtelomeric heterochromatin formation / regulation of DNA repair / histone H4K16 acetyltransferase activity / histone H3K56 acetyltransferase activity / histone H3K23 acetyltransferase activity / histone H2AK5 acetyltransferase activity / histone H2AK9 acetyltransferase activity / histone H2BK5 acetyltransferase activity / histone H2BK12 acetyltransferase activity / histone H3K4 acetyltransferase activity / histone H3K27 acetyltransferase activity / histone H3K36 acetyltransferase activity / histone H3K122 acetyltransferase activity / histone H3K18 acetyltransferase activity / histone H3K9 acetyltransferase activity / histone H3K14 acetyltransferase activity / histone H4K5 acetyltransferase activity / histone H4K8 acetyltransferase activity / histone H4K12 acetyltransferase activity / histone acetyltransferase / positive regulation of transcription elongation by RNA polymerase II / protein modification process / double-strand break repair via nonhomologous end joining / structural constituent of chromatin / nucleosome / protein transport / nucleosome assembly / chromatin organization / regulation of gene expression / histone binding / chromosome, telomeric region / protein heterodimerization activity / DNA damage response / chromatin binding / regulation of transcription by RNA polymerase II / chromatin / DNA binding / nucleoplasm / identical protein binding / nucleus / cytosol Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | SOLUTION NMR / ![]() | ||||||
![]() | Danilenko, N. / Carlomagno, T. / Kirkpatrick, J.P. | ||||||
![]() | ![]() Title: Histone chaperone exploits intrinsic disorder to switch acetylation specificity. Authors: Nataliya Danilenko / Lukas Lercher / John Kirkpatrick / Frank Gabel / Luca Codutti / Teresa Carlomagno / ![]() ![]() Abstract: Histones, the principal protein components of chromatin, contain long disordered sequences, which are extensively post-translationally modified. Although histone chaperones are known to control both ...Histones, the principal protein components of chromatin, contain long disordered sequences, which are extensively post-translationally modified. Although histone chaperones are known to control both the activity and specificity of histone-modifying enzymes, the mechanisms promoting modification of highly disordered substrates, such as lysine-acetylation within the N-terminal tail of histone H3, are not understood. Here, to understand how histone chaperones Asf1 and Vps75 together promote H3 K9-acetylation, we establish the solution structural model of the acetyltransferase Rtt109 in complex with Asf1 and Vps75 and the histone dimer H3:H4. We show that Vps75 promotes K9-acetylation by engaging the H3 N-terminal tail in fuzzy electrostatic interactions with its disordered C-terminal domain, thereby confining the H3 tail to a wide central cavity faced by the Rtt109 active site. These fuzzy interactions between disordered domains achieve localization of lysine residues in the H3 tail to the catalytic site with minimal loss of entropy, and may represent a common mechanism of enzymatic reactions involving highly disordered substrates. | ||||||
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#1: Protein | Mass: 30656.084 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: VPS75, YNL246W, N0890 / Production host: ![]() ![]() #2: Protein | | Mass: 50765.434 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: RTT109, KIM2, REM50, YLL002W, L1377 / Production host: ![]() ![]() #3: Protein | | Mass: 31585.139 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: ASF1, CIA1, YJL115W, J0755 / Production host: ![]() ![]() #4: Protein | | Mass: 15421.101 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #5: Protein | | Mass: 11394.426 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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