6cen

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Crystal Structure of WHSC1L1 in Complex with Inhibitor PEP21

Structural highlights

6cen is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.61Å
Ligands:ACE, NH2, NLE, SAM, ZN
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

NSD3_HUMAN Note=Defects in WHSC1L1 may be involved in non small cell lung carcinomas (NSCLC). Amplified or overexpressed in NSCLC.[1] Note=A chromosomal aberration involving WHSC1L1 is found in childhood acute myeloid leukemia. Translocation t(8;11)(p11.2;p15) with NUP98.

Function

NSD3_HUMAN Histone methyltransferase. Preferentially methylates 'Lys-4' and 'Lys-27' of histone H3. H3 'Lys-4' methylation represents a specific tag for epigenetic transcriptional activation, while 'Lys-27' is a mark for transcriptional repression.[2]

Publication Abstract from PubMed

WHSC1 is a histone methyltransferase that is responsible for mono- and dimethylation of lysine 36 on histone H3 and has been implicated as a driver in a variety of hematological and solid tumors. Currently, there is a complete lack of validated chemical matter for this important drug discovery target. Herein we report on the first fully validated WHSC1 inhibitor, PTD2, a norleucine-containing peptide derived from the histone H4 sequence. This peptide exhibits micromolar affinity towards WHSC1 in biochemical and biophysical assays. Furthermore, a crystal structure was solved with the peptide in complex with SAM and the SET domain of WHSC1L1. This inhibitor is an important first step in creating potent, selective WHSC1 tool compounds for the purposes of understanding the complex biology in relation to human disease.

Identification of a peptide inhibitor for the histone methyltransferase WHSC1.,Morrison MJ, Boriack-Sjodin PA, Swinger KK, Wigle TJ, Sadalge D, Kuntz KW, Scott MP, Janzen WP, Chesworth R, Duncan KW, Harvey DM, Lampe JW, Mitchell LH, Copeland RA PLoS One. 2018 May 9;13(5):e0197082. doi: 10.1371/journal.pone.0197082., eCollection 2018. PMID:29742153[3]

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

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See Also

References

  1. ↑ Tonon G, Wong KK, Maulik G, Brennan C, Feng B, Zhang Y, Khatry DB, Protopopov A, You MJ, Aguirre AJ, Martin ES, Yang Z, Ji H, Chin L, Depinho RA. High-resolution genomic profiles of human lung cancer. Proc Natl Acad Sci U S A. 2005 Jul 5;102(27):9625-30. Epub 2005 Jun 27. PMID:15983384 doi:10.1073/pnas.0504126102
  2. ↑ Kim SM, Kee HJ, Eom GH, Choe NW, Kim JY, Kim YS, Kim SK, Kook H, Kook H, Seo SB. Characterization of a novel WHSC1-associated SET domain protein with H3K4 and H3K27 methyltransferase activity. Biochem Biophys Res Commun. 2006 Jun 23;345(1):318-23. Epub 2006 Apr 27. PMID:16682010 doi:S0006-291X(06)00939-9
  3. ↑ Morrison MJ, Boriack-Sjodin PA, Swinger KK, Wigle TJ, Sadalge D, Kuntz KW, Scott MP, Janzen WP, Chesworth R, Duncan KW, Harvey DM, Lampe JW, Mitchell LH, Copeland RA. Identification of a peptide inhibitor for the histone methyltransferase WHSC1. PLoS One. 2018 May 9;13(5):e0197082. doi: 10.1371/journal.pone.0197082., eCollection 2018. PMID:29742153 doi:http://dx.doi.org/10.1371/journal.pone.0197082

Contents


PDB ID 6cen

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OCA

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