Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
3D complex viewer
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak
SASA cached
Weak or marginal quality
Binding strong
Geometry high
Native strong
SASA done
Strain ΔE
19.0 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 1.00, Jaccard 0.78, H-bond role recall 0.67
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Weak
Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.851 kcal/mol/HA)
✓ Good fit quality (FQ -8.21)
✓ Strong H-bond network (12 bonds)
✓ Deep burial (75% SASA buried)
✓ Lipophilic contacts well-matched (77%)
✗ Moderate strain (19.0 kcal/mol)
✗ Geometry warnings
✗ Many internal clashes (11)
Score
-25.521
kcal/mol
LE
-0.851
kcal/mol/HA
Fit Quality
-8.21
FQ (Leeson)
HAC
30
heavy atoms
MW
427
Da
LogP
4.61
cLogP
Interaction summary
HB 12
HY 11
PI 5
CLASH 2
Interaction summary
HB 12
HY 11
PI 5
CLASH 2
| Final rank | 2.916 | Score | -25.521 |
|---|---|---|---|
| Inter norm | -1.021 | Intra norm | 0.170 |
| Top1000 | no | Excluded | no |
| Contacts | 18 | H-bonds | 12 |
| Artifact reason | geometry warning; 11 clashes; 1 protein clash | ||
| Residues |
ARG137
ARG141
ASN103
HIS102
HIS138
ILE101
MET98
TYR94
ASP10
CYS69
GLY70
GLY72
GLY74
HIS11
ILE73
PRO12
SER71
TYR46
| ||
Protein summary
305 residues
| Protein target | T21 | Atoms | 4646 |
|---|---|---|---|
| Residues | 305 | Chains | 2 |
| Residue summary | ARG:576; ILE:532; VAL:512; GLU:420; ALA:360; PHE:240; HIS:238; LYS:220; THR:210; LEU:190; PRO:168; TYR:168; GLY:154; SER:154; ASP:144; ASN:112 | ||
Native ligand reference
★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
| Name | 3K7O | Contacts | 14 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ARG137
ARG141
ASN103
HIS102
HIS138
ASP10
CYS69
GLY70
GLY74
HIS11
ILE73
PRO12
SER71
TYR46
| ||
| Current overlap | 14 | Native recall | 1.00 |
| Jaccard | 0.78 | RMSD | - |
| HB strict | 7 | Strict recall | 0.58 |
| HB same residue+role | 6 | HB role recall | 0.67 |
| HB same residue | 5 | HB residue recall | 0.62 |
HB · H-bonds
Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.
PI · π–π interactions
Native π–π recall is disabled because no explicit native π–π reference was stored.
HY · Hydrophobic contacts
CLASH · Clashes
All stored poses for this docking hit
| Pose | Final rank | Inter norm | Score | HB | CT | CT overlap | CT recall | HB role rec. | RMSD | Excluded | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 271 | 0.33329873631733 | -1.34281 | -36.348 | 7 | 18 | 0 | 0.00 | 0.00 | - | no | Open |
| 258 | 1.3392324839671519 | -0.81043 | -19.2443 | 4 | 18 | 0 | 0.00 | 0.00 | - | no | Open |
| 264 | 1.5746756141716811 | -1.21355 | -30.9473 | 7 | 16 | 0 | 0.00 | 0.00 | - | no | Open |
| 265 | 1.6344119354406168 | -0.951662 | -25.7152 | 6 | 12 | 0 | 0.00 | 0.00 | - | no | Open |
| 246 | 1.983765066084416 | -1.07479 | -29.1429 | 4 | 17 | 0 | 0.00 | 0.00 | - | no | Open |
| 328 | 2.1144353827617395 | -0.854583 | -25.3471 | 2 | 17 | 0 | 0.00 | 0.00 | - | no | Open |
| 287 | 2.915809060586571 | -1.02101 | -25.5206 | 12 | 18 | 14 | 1.00 | 0.67 | - | no | Current |
| 311 | 4.111083386289892 | -0.863187 | -20.0163 | 8 | 14 | 0 | 0.00 | 0.00 | - | no | Open |
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-25.521kcal/mol
Ligand efficiency (LE)
-0.8507kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-8.206
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
30HA
Physicochemical properties
Molecular weight
426.5Da
Lipinski: ≤ 500 Da
LogP (cLogP)
4.61
Lipinski: ≤ 5
Rotatable bonds
7
Conformational strain (MMFF94s)
Strain energy (ΔE)
18.97kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
57.54kcal/mol
Minimised FF energy
38.57kcal/mol
SASA & burial
✓ computed
SASA (unbound)
692.4Ų
Total solvent-accessible surface area of free ligand
BSA total
519.8Ų
Buried surface area upon binding
BSA apolar
398.2Ų
Hydrophobic contacts buried
BSA polar
121.6Ų
Polar contacts buried
Fraction buried
75.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
76.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-2292.7Ų
SASA_nonpolar(complex) − SASA_nonpolar(receptor) − SASA_nonpolar(ligand free). Negative = non-polar surface buried upon binding. Requires full polarity-decomposed SASA computation.
Receptor non-polar SASA
2482.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
749.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)