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 medium
Native strong
SASA done
Strain ΔE
34.3 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.70, Jaccard 0.67, H-bond role recall 0.20
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Weak
Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.918 kcal/mol/HA)
✓ Good fit quality (FQ -9.03)
✓ Good H-bonds (3 bonds)
✓ Deep burial (83% SASA buried)
✓ Lipophilic contacts well-matched (71%)
✗ Very high strain energy (34.3 kcal/mol)
✗ Geometry warnings
✗ Internal clashes (7)
Score
-29.389
kcal/mol
LE
-0.918
kcal/mol/HA
Fit Quality
-9.03
FQ (Leeson)
HAC
32
heavy atoms
MW
452
Da
LogP
3.18
cLogP
Final rank
2.1374
rank score
Inter norm
-0.916
normalised
Contacts
15
H-bonds 3
Interaction summary
HBA 3
HY 8
PI 3
CLASH 2
Interaction summary
HBA 3
HY 8
PI 3
CLASH 2
HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 1.
PI · π–π interactions
Native π–π recall is disabled because no explicit native π–π reference was stored.
HY · Hydrophobic contacts
CLASH · Clashes
Native ligand reference
★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
| Name | 3CL9 | Contacts | 20 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ALA32
ARG97
ASP52
ILE45
LEU94
LYS57
MET53
NDP301
PHE56
PHE91
PRO88
SER86
THR180
THR54
THR83
TYR162
VAL156
VAL30
VAL31
VAL87
| ||
| Current overlap | 14 | Native recall | 0.70 |
| Jaccard | 0.67 | RMSD | - |
| HB strict | 2 | Strict recall | 0.29 |
| HB same residue+role | 1 | HB role recall | 0.20 |
| HB same residue | 1 | HB residue recall | 0.20 |
Protein summary
225 residues
| Protein target | T03 | Atoms | 3428 |
|---|---|---|---|
| Residues | 225 | Chains | 2 |
| Residue summary | LEU:380; ARG:360; VAL:272; LYS:264; ALA:240; GLU:240; PRO:224; PHE:180; THR:154; ILE:152; SER:132; TYR:126; GLN:119; ASN:98; GLY:84; NDP:74 | ||
Receptor context
1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1
Excluded HETATM 0
Kept cofactors / ions
A:NDP301
All stored poses for this docking hit
| Pose | Final rank | Inter norm | Score | HB | CT | CT overlap | CT recall | HB role rec. | RMSD | Excluded | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 521 | 2.1374221202551658 | -0.916476 | -29.3885 | 3 | 15 | 14 | 0.70 | 0.20 | - | no | Current |
| 537 | 2.3560042920947692 | -0.703586 | -23.3663 | 3 | 10 | 0 | 0.00 | 0.00 | - | no | Open |
| 509 | 3.234435810672808 | -0.759892 | -21.9245 | 7 | 12 | 0 | 0.00 | 0.00 | - | no | Open |
| 537 | 3.326461527045995 | -0.731352 | -24.0553 | 5 | 16 | 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
-29.389kcal/mol
Ligand efficiency (LE)
-0.9184kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-9.031
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
32HA
Physicochemical properties
Molecular weight
452.5Da
Lipinski: ≤ 500 Da
LogP (cLogP)
3.18
Lipinski: ≤ 5
Rotatable bonds
7
Conformational strain (MMFF94s)
Strain energy (ΔE)
34.34kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
-12.29kcal/mol
Minimised FF energy
-46.63kcal/mol
SASA & burial
✓ computed
SASA (unbound)
714.7Ų
Total solvent-accessible surface area of free ligand
BSA total
591.7Ų
Buried surface area upon binding
BSA apolar
419.3Ų
Hydrophobic contacts buried
BSA polar
172.4Ų
Polar contacts buried
Fraction buried
82.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
70.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-1530.8Ų
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
1820.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
817.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)