2ndf: Difference between revisions

Latest revision as of 08:20, 30 October 2024

Solution NMR structures of AF9 yeats domain in complex with histon H3 acetylation at K18

Structural highlights

2ndf is a 2 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	Solution NMR, 20 models
Ligands:	ALY
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

AF9_HUMAN A chromosomal aberration involving MLLT3 is associated with acute leukemias. Translocation t(9;11)(p22;q23) with KMT2A/MLL1. The result is a rogue activator protein.

Function

AF9_HUMAN Component of the super elongation complex (SEC), a complex required to increase the catalytic rate of RNA polymerase II transcription by suppressing transient pausing by the polymerase at multiple sites along the DNA.^[1] ^[2]

Publication Abstract from PubMed

Histone lysine acylations play an important role in the regulation of gene transcription in chromatin. Unlike histone acetyl-lysine, molecular recognition of a recently identified crotonyl-lysine mark is much less understood. Here, we report that the YEATS domain of AF9 preferentially binds crotonyl-lysine over acetyl-lysine in histone H3. Nuclear magnetic resonance structural analysis reveals that crotonyl-lysine of histone H3 lysine 18 is engulfed deep in an aromatic cage of the YEATS domain where the carbonyl oxygen of crotonyl-lysine forms a hydrogen bond with the backbone amide of protein residue Tyr78. The crotonyl-lysine, through its unique electron-rich double-bond side chain, engages pi-pi aromatic stacking and extended hydrophobic/aromatic interactions with the YEATS domain compared with acetyl-lysine. Our mutational analysis confirmed key protein residues Phe59 and Tyr78 for crotonyl-lysine recognition. Importantly, our findings present a new structural mechanism of protein-protein interactions mediated by histone lysine crotonylation, and show how the cells interpret acyl-lysine marks in different biological contexts.

Structural Insights into Histone Crotonyl-Lysine Recognition by the AF9 YEATS Domain.,Zhang Q, Zeng L, Zhao C, Ju Y, Konuma T, Zhou MM Structure. 2016 Sep 6;24(9):1606-1612. doi: 10.1016/j.str.2016.05.023. Epub 2016 , Aug 18. PMID:27545619^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Lin C, Smith ER, Takahashi H, Lai KC, Martin-Brown S, Florens L, Washburn MP, Conaway JW, Conaway RC, Shilatifard A. AFF4, a component of the ELL/P-TEFb elongation complex and a shared subunit of MLL chimeras, can link transcription elongation to leukemia. Mol Cell. 2010 Feb 12;37(3):429-37. doi: 10.1016/j.molcel.2010.01.026. PMID:20159561 doi:10.1016/j.molcel.2010.01.026
↑ He N, Liu M, Hsu J, Xue Y, Chou S, Burlingame A, Krogan NJ, Alber T, Zhou Q. HIV-1 Tat and host AFF4 recruit two transcription elongation factors into a bifunctional complex for coordinated activation of HIV-1 transcription. Mol Cell. 2010 May 14;38(3):428-38. doi: 10.1016/j.molcel.2010.04.013. PMID:20471948 doi:10.1016/j.molcel.2010.04.013
↑ Zhang Q, Zeng L, Zhao C, Ju Y, Konuma T, Zhou MM. Structural Insights into Histone Crotonyl-Lysine Recognition by the AF9 YEATS Domain. Structure. 2016 Sep 6;24(9):1606-1612. doi: 10.1016/j.str.2016.05.023. Epub 2016 , Aug 18. PMID:27545619 doi:https://dx.doi.org/10.1016/j.str.2016.05.023

Proteopedia Page Contributors and Editors (what is this?)

OCA

[1] Lin C, Smith ER, Takahashi H, Lai KC, Martin-Brown S, Florens L, Washburn MP, Conaway JW, Conaway RC, Shilatifard A. AFF4, a component of the ELL/P-TEFb elongation complex and a shared subunit of MLL chimeras, can link transcription elongation to leukemia. Mol Cell. 2010 Feb 12;37(3):429-37. doi: 10.1016/j.molcel.2010.01.026. PMID:20159561 doi:10.1016/j.molcel.2010.01.026

[2] He N, Liu M, Hsu J, Xue Y, Chou S, Burlingame A, Krogan NJ, Alber T, Zhou Q. HIV-1 Tat and host AFF4 recruit two transcription elongation factors into a bifunctional complex for coordinated activation of HIV-1 transcription. Mol Cell. 2010 May 14;38(3):428-38. doi: 10.1016/j.molcel.2010.04.013. PMID:20471948 doi:10.1016/j.molcel.2010.04.013

[3] Zhang Q, Zeng L, Zhao C, Ju Y, Konuma T, Zhou MM. Structural Insights into Histone Crotonyl-Lysine Recognition by the AF9 YEATS Domain. Structure. 2016 Sep 6;24(9):1606-1612. doi: 10.1016/j.str.2016.05.023. Epub 2016 , Aug 18. PMID:27545619 doi:https://dx.doi.org/10.1016/j.str.2016.05.023

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 == Structural highlights ==
 <table><tr><td colspan='2'>[[2ndf]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NDF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2NDF FirstGlance]. <br>
-</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 20 models</td></tr>
 <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ALY:N(6)-ACETYLLYSINE'>ALY</scene></td></tr>
 <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2ndf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ndf OCA], [https://pdbe.org/2ndf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ndf RCSB], [https://www.ebi.ac.uk/pdbsum/2ndf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ndf ProSAT]</span></td></tr>

2ndf: Difference between revisions

Latest revision as of 08:20, 30 October 2024

Solution NMR structures of AF9 yeats domain in complex with histon H3 acetylation at K18

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

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