ISDA: 2PQW

Deposition Date 2007-05-02

Release Date 2007-07-31

Last Version Date 2023-08-30

Entry Detail

PDB ID:

2PQW

Keywords:

TRANSCRIPTION

Title:

Crystal structure of L3MBTL1 in complex with H4K20Me2 (residues 17-25), trigonal form

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.00 Å

R-Value Free:

0.22

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 32 2 1

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Lethal(3)malignant brain tumor-like protein
Gene (Uniprot):L3MBTL1
Chain IDs:A
Chain Length:323
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:Q9Y468 Pfam ID:PF02820

Polymer Type:polypeptide(L)
Molecule:Histone H4
Chain IDs:B
Chain Length:9
Number of Molecules:1
Biological Source:

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
MLY	B	LYS	N-DIMETHYL-LYSINE

Ligand Molecules

ACT

Primary Citation

L3MBTL1 recognition of mono- and dimethylated histones.

Min, J, Allali-Hassani, A, Nady, N, Qi, C, Ouyang, H, Liu, Y, MacKenzie, F, Vedadi, M, Arrowsmith, C.H.Show

Nat.Struct.Mol.Biol. 14 1229 1230 (2007)

PMID: 18026117 DOI: 10.1038/nsmb1340

Abstact

Crystal structures of the L3MBTL1 MBT repeats in complex with histone H4 peptides dimethylated on Lys20 (H4K20me2) show that only the second of the three MBT repeats can bind mono- and dimethylated histone peptides. Its binding pocket has similarities to that of 53BP1 and is able to recognize the degree of histone lysine methylation. An unexpected mode of peptide-mediated dimerization suggests a possible mechanism for chromatin compaction by L3MBTL1.

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Protein

Chemical

Disease

Primary Citation of related structures

Abstact

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