Structural Basis for specific binding of polycomb chromodomain to histone H3 methylated at K27. Determined by X-ray diffraction at 1.4 Å resolution. Released 7 Oct 2003.
Explore 1PFB in 3D Show helices and sheets RCSB PDB PDBe
1PFB contains 3 α-helices and 4 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.
| Element | Residues | Length | Sheet |
|---|---|---|---|
| β-strand | 24-37 | 14 | 1 |
| β-strand | 40-47 | 8 | 1 |
| α-helix | 52-54 | 3 | |
| β-strand | 56-59 | 4 | 1 |
| α-helix | 60-62 | 3 | |
| α-helix | 67-73 | 7 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| β-strand | 23-27 | 5 | 1 |
| Molecule | Chains | Type | Length | Organism | UniProt |
|---|---|---|---|---|---|
| Polycomb protein | A | protein | 55 | Drosophila melanogaster | P26017 (AlphaFold model) |
| Histone H3, embryonic | B | protein | 11 | P06352 (AlphaFold model) |
>1PFB_1 Polycomb protein (chains A) DLVYAAEKIIQKRVKKGVVEYRVKWKGWNQRYNTWEPEVNILDRRLIDIYEQTNK
>1PFB_2 Histone H3, embryonic (chains B) LATKAARKSAP
Structural basis for specific binding of Polycomb chromodomain to histone H3 methylated at Lys 27. Min, J.R., Zhang, Y., Xu, R.-M. Genes Dev (2003) 17:1823-1828. DOI 10.1101/gad.269603 · PubMed
Other PDB entries of the same protein (UniProt P26017 (AlphaFold model), which also has an AlphaFold model), best resolution first:
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