4do0: Difference between revisions
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4do0]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DO0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4DO0 FirstGlance]. <br> | <table><tr><td colspan='2'>[[4do0]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DO0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4DO0 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=DZA:DAMINOZIDE'>DZA</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.55Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=DZA:DAMINOZIDE'>DZA</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=4do0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4do0 OCA], [https://pdbe.org/4do0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4do0 RCSB], [https://www.ebi.ac.uk/pdbsum/4do0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4do0 ProSAT]</span></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=4do0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4do0 OCA], [https://pdbe.org/4do0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4do0 RCSB], [https://www.ebi.ac.uk/pdbsum/4do0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4do0 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Disease == | == Disease == | ||
[https://www.uniprot.org/uniprot/PHF8_HUMAN PHF8_HUMAN] Defects in PHF8 are the cause of mental retardation syndromic X-linked Siderius type (MRXSSD) [MIM:[https://omim.org/entry/300263 300263]. A disorder characterized by mild to borderline mental retardation with or without cleft lip/cleft palate.<ref>PMID:20548336</ref> <ref>PMID:20346720</ref> <ref>PMID:20421419</ref> <ref>PMID:20208542</ref> <ref>PMID:20622853</ref> <ref>PMID:20622854</ref> <ref>PMID:20101266</ref> <ref>PMID:16199551</ref> <ref>PMID:17661819</ref> | |||
== Function == | == Function == | ||
[https://www.uniprot.org/uniprot/PHF8_HUMAN PHF8_HUMAN] Histone lysine demethylase with selectivity for the di- and monomethyl states that plays a key role cell cycle progression, rDNA transcription and brain development. Demethylates mono- and dimethylated histone H3 'Lys-9' residue (H3K9Me1 and H3K9Me2), dimethylated H3 'Lys-27' (H3K27Me2) and monomethylated histone H4 'Lys-20' residue (H4K20Me1). Acts as a transcription activator as H3K9Me1, H3K9Me2, H3K27Me2 and H4K20Me1 are epigenetic repressive marks. Involved in cell cycle progression by being required to control G1-S transition. Acts as a coactivator of rDNA transcription, by activating polymerase I (pol I) mediated transcription of rRNA genes. Required for brain development, probably by regulating expression of neuron-specific genes. Only has activity toward H4K20Me1 when nucleosome is used as a substrate and when not histone octamer is used as substrate. May also have weak activity toward dimethylated H3 'Lys-36' (H3K36Me2), however, the relevance of this result remains unsure in vivo. Specifically binds trimethylated 'Lys-4' of histone H3 (H3K4me3), affecting histone demethylase specificity: has weak activity toward H3K9Me2 in absence of H3K4me3, while it has high activity toward H3K9me2 when binding H3K4me3.<ref>PMID:20531378</ref> <ref>PMID:20548336</ref> <ref>PMID:19843542</ref> <ref>PMID:20346720</ref> <ref>PMID:20421419</ref> <ref>PMID:20208542</ref> <ref>PMID:20622853</ref> <ref>PMID:20622854</ref> <ref>PMID:20101266</ref> <ref>PMID:20023638</ref> | |||
== References == | == References == | ||
<references/> | <references/> |
Latest revision as of 17:40, 14 March 2024
Crystal Structure of human PHF8 in complex with DaminozideCrystal Structure of human PHF8 in complex with Daminozide
Structural highlights
DiseasePHF8_HUMAN Defects in PHF8 are the cause of mental retardation syndromic X-linked Siderius type (MRXSSD) [MIM:300263. A disorder characterized by mild to borderline mental retardation with or without cleft lip/cleft palate.[1] [2] [3] [4] [5] [6] [7] [8] [9] FunctionPHF8_HUMAN Histone lysine demethylase with selectivity for the di- and monomethyl states that plays a key role cell cycle progression, rDNA transcription and brain development. Demethylates mono- and dimethylated histone H3 'Lys-9' residue (H3K9Me1 and H3K9Me2), dimethylated H3 'Lys-27' (H3K27Me2) and monomethylated histone H4 'Lys-20' residue (H4K20Me1). Acts as a transcription activator as H3K9Me1, H3K9Me2, H3K27Me2 and H4K20Me1 are epigenetic repressive marks. Involved in cell cycle progression by being required to control G1-S transition. Acts as a coactivator of rDNA transcription, by activating polymerase I (pol I) mediated transcription of rRNA genes. Required for brain development, probably by regulating expression of neuron-specific genes. Only has activity toward H4K20Me1 when nucleosome is used as a substrate and when not histone octamer is used as substrate. May also have weak activity toward dimethylated H3 'Lys-36' (H3K36Me2), however, the relevance of this result remains unsure in vivo. Specifically binds trimethylated 'Lys-4' of histone H3 (H3K4me3), affecting histone demethylase specificity: has weak activity toward H3K9Me2 in absence of H3K4me3, while it has high activity toward H3K9me2 when binding H3K4me3.[10] [11] [12] [13] [14] [15] [16] [17] [18] [19] References
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