3mqm

Crystal Structure of the Bromodomain of human ASH1L

Method: X-RAY DIFFRACTION Dmax: 71.5 Å Quality: GOOD

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

Probable histone-lysine N-methyltransferase ASH1L

Homo sapiens

UniProt Q9NR48

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 2438–2564 Fragment:BROMODOMAIN of human ASH1L (UNP RESIDUES 2438:2564) No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;277 K;0.15M NaNO3 20% PEG3350 10% EtGly, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.54 Å R-free 0.259
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 2438–2564 Fragment:BROMODOMAIN of human ASH1L (UNP RESIDUES 2438:2564) No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;277 K;0.15M NaNO3 20% PEG3350 10% EtGly, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.54 Å R-free 0.259
3 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 2438–2564 Chain B; UniProt 2438–2564 Fragment:BROMODOMAIN of human ASH1L (UNP RESIDUES 2438:2564) No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;277 K;0.15M NaNO3 20% PEG3350 10% EtGly, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.54 Å R-free 0.259

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.

14 other PDB entries and 26 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ASH1L_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–126; UniProt 2438–2564 Author chain B; PDBConstruct 3–126; UniProt 2438–2564

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 3mqm

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3mqm
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id3mqm
Deposition date deposition_date2010-04-28
Structure title titleCrystal Structure of the Bromodomain of human ASH1L
Keywords keywords;ASH1L, Ash1, KIAA1420, Absent small and homeotic disks protein 1 homolog, Lysine N-methyltransferase 2H, KMT2H, Structural Genomics Consortium, SGC, TRANSFERASE ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.73
Radius of gyration Rg (electron density) rg_electron19.90
Forward intensity I(0) i012835300.00
Molecular weight molecular_weight27194.0 kDa
Excluded volume excluded_volume34195 ų
Envelope volume envelope_volume41644 ų
Hydration-shell volume shell_volume18150 ų
Envelope diameter envelope_diameter76.0
Shell Rg shell_rg25.64
Envelope Rg envelope_rg20.03
Shape Rg shape_rg19.89
Total Rg total_rg20.81
Total atoms total_atoms1918
Residues n_residues252
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 dmax71.5
Rg (real space) rg_real20.71
Rg uncertainty (real space) rg_real_error0.63
I(0) (real space) i0_real1.2840e+07
I(0) uncertainty (real space) i0_real_error1.6830e+05
Rg (reciprocal space) rg_reciprocal20.72
I(0) (reciprocal space) i0_reciprocal12840000.0000
Solution quality estimate total_estimate0.7928
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary24.9
Skewness Skewness skewness0.342
Kurtosis Kurtosis kurtosis-0.195
Angular range angular_range— – 0.3850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2251000.0000
Real-space data points n_real_points70
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.776; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.977; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd3mqma1
Class classa — All alpha proteins
Fold Fold folda.29 — Bromodomain-like
Superfamily Superfamily superfamilya.29.2 — Bromodomain
Family Family familya.29.2.0 — automated matches
Domain ID domain_idd3mqma2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd3mqmb1
Class classa — All alpha proteins
Fold Fold folda.29 — Bromodomain-like
Superfamily Superfamily superfamilya.29.2 — Bromodomain
Family Family familya.29.2.0 — automated matches
Domain ID domain_idd3mqmb2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id3mqmA00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology920 — Histone Acetyltransferase; Chain A
Homologous superfamily homologous superfamily10 — Bromodomain-like
Domain ID domain_id3mqmB00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology920 — Histone Acetyltransferase; Chain A
Homologous superfamily homologous superfamily10 — Bromodomain-like

8. Citations (1)

9. Files and Curves (10)