5f6k

X-ray diffraction
2.41Å resolution

Crystal structure of the MLL3-Ash2L-RbBP5 complex

Released:

Function and Biology Details

Reaction catalysed:
S-adenosyl-L-methionine + a [histone H3]-L-lysine(4) = S-adenosyl-L-homocysteine + a [histone H3]-N(6)-methyl-L-lysine(4)
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:

Structure analysis Details

Assemblies composition:
hetero heptamer
hetero trimer
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-172250 (preferred)
Entry contents:
4 distinct polypeptide molecules
Macromolecules (4 distinct):
Set1/Ash2 histone methyltransferase complex subunit ASH2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 184 amino acids
Theoretical weight: 20.6 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9UBL3 (Residues: 380-496, 516-598; Coverage: 28%)
Gene names: ASH2L, ASH2L1
Sequence domains: SPRY domain
Structure domains: Jelly Rolls
Histone-lysine N-methyltransferase 2C Chains: C, E
Molecule details ›
Chains: C, E
Length: 159 amino acids
Theoretical weight: 18.44 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8NEZ4 (Residues: 4757-4911; Coverage: 3%)
Gene names: HALR, KIAA1506, KMT2C, MLL3
Sequence domains: SET domain
Structure domains: SET domain
Retinoblastoma-binding protein 5 Chains: D, F
Molecule details ›
Chains: D, F
Length: 27 amino acids
Theoretical weight: 3.26 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q15291 (Residues: 330-356; Coverage: 5%)
Gene names: RBBP5, RBQ3
Histone H3.3C Chain: M
Molecule details ›
Chain: M
Length: 9 amino acids
Theoretical weight: 1.06 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: Q6NXT2 (Residues: 2-10; Coverage: 7%)
Gene names: H3-5, H3F3C

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-D
Spacegroup: P21212
Unit cell:
a: 80.342Å b: 236.076Å c: 44.416Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.183 0.18 0.228
Expression systems:
  • Escherichia coli
  • Not provided