2kkf

Solution structure of MLL CXXC domain in complex with palindromic CPG DNA

Method: SOLUTION NMR Dmax: 45.9 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Histone-lysine N-methyltransferase HRX

Homo sapiens

UniProt Q03164

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein–DNA Monomer Protein × 1 DNA 2 PDB declaration: trimeric(3) Consistent with all polymer counts Chain A; UniProt 1147–1203 Fragment:CXXC DOMAIN: UNP RESIDUES 1147-1203 5'-D(*CP*CP*CP*TP*GP*CP*GP*CP*AP*GP*GP*G)-3' × 2 ZN ZINC ION × 2 SOLUTION NMR NMR measurement conditions:pH 7;298 K;Ionic strength (raw mmCIF value) 25;Pressure Ambient NMR sample composition:1 mM [U-98% 13C; U-98% 15N] CXXC domain-1, 1 mM DNA (5'-D(*DCP*DCP*DCP*DTP*DGP*DCP*DGP*DCP*DAP*DGP*DGP*DG)-3')-2, 95% H2O/5% D2O | 95% H2O/5% D2O NMR sample composition:1 mM [U-98% 13C; U-98% 15N] CXXC domain-3, 1 mM DNA (5'-D(*DCP*DCP*DCP*DTP*DGP*DCP*DGP*DCP*DAP*DGP*DGP*DG)-3')-4, 100% D2O | 100% D2O NMR sample composition:1 mM [U-98% 13C; U-98% 15N] CXXC domain-5, 1 mM DNA (5'-D(*DCP*DCP*DCP*DTP*DGP*DCP*DGP*DCP*DAP*DGP*DGP*DG)-3')-6, 95% H2O/5% D2O | 95% H2O/5% D2O NMR sample composition:1 mM [U-98% 15N] CXXC domain-7, 1 mM DNA (5'-D(*DCP*DCP*DCP*DTP*DGP*DCP*DGP*DCP*DAP*DGP*DGP*DG)-3')-8, 100% D2O | 100% D2O Resolution not provided

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

54 other PDB entries and 62 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HRX_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–59; UniProt 1147–1203

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 2kkf

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2kkf
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2kkf
Deposition date deposition_date2009-06-18
Structure title titleSolution structure of MLL CXXC domain in complex with palindromic CPG DNA
Keywords keywords;PROTEIN-DNA COMPLEX, CXXC DOMAIN, MLL, CPG DNA, CHROMOSOMAL REARRANGEMENT, DNA-BINDING, METAL-BINDING, NUCLEUS, ZINC-FINGER, DNA BINDING PROTEIN-DNA COMPLEX, Alternative splicing, Apoptosis, Bromodomain, Chromatin regulator, Isopeptide bond, Methyltransferase, Phosphoprotein, Polymorphism, Proto-oncogene, S-adenosyl-L-methionine, Transcription, Transcription regulation, Transferase, Ubl conjugation, Zinc ;; DNA BINDING PROTEIN/DNA
Experimental Method methodSOLUTION NMR

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier14.12
Radius of gyration Rg (electron density) rg_electron14.08
Forward intensity I(0) i0565240000.00
Molecular weight molecular_weight139770.0 kDa
Excluded volume excluded_volume150090 ų
Envelope volume envelope_volume25089 ų
Hydration-shell volume shell_volume14024 ų
Envelope diameter envelope_diameter48.5
Shell Rg shell_rg20.92
Envelope Rg envelope_rg15.31
Shape Rg shape_rg14.05
Total Rg total_rg14.26
Total atoms total_atoms16580
Residues n_residues810
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax45.9
Rg (real space) rg_real14.02
Rg uncertainty (real space) rg_real_error0.24
I(0) (real space) i0_real5.6520e+08
I(0) uncertainty (real space) i0_real_error6.2770e+06
Rg (reciprocal space) rg_reciprocal14.03
I(0) (reciprocal space) i0_reciprocal565200000.0000
Solution quality estimate total_estimate0.8886
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary19.2
Skewness Skewness skewness0.081
Kurtosis Kurtosis kurtosis-0.451
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha384600.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.851; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.995

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)