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
31.1 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.71, Jaccard 0.62, H-bond role recall 0.17
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Weak
Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.936 kcal/mol/HA)
✓ Good fit quality (FQ -8.51)
✓ Good H-bonds (3 bonds)
✓ Deep burial (94% SASA buried)
✓ Lipophilic contacts well-matched (74%)
✗ Very high strain energy (31.1 kcal/mol)
✗ Geometry warnings
✗ Many internal clashes (11)
Score
-23.401
kcal/mol
LE
-0.936
kcal/mol/HA
Fit Quality
-8.51
FQ (Leeson)
HAC
25
heavy atoms
MW
355
Da
LogP
3.50
cLogP
Final rank
3.1700
rank score
Inter norm
-1.037
normalised
Contacts
18
H-bonds 4
Interaction summary
HBD 1
HBA 2
HY 9
PI 2
CLASH 2
Interaction summary
HBD 1
HBA 2
HY 9
PI 2
CLASH 2
HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 3.
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: permissive.
| Name | 3CL9 | Contacts | 21 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
NDP301
ALA32
ARG97
ASP52
GLY157
ILE45
LEU94
LYS57
MET53
PHE55
PHE56
PHE91
PRO88
SER86
THR180
THR83
TYR162
VAL156
VAL30
VAL31
VAL87
| ||
| Current overlap | 15 | Native recall | 0.71 |
| Jaccard | 0.62 | RMSD | - |
| HB strict | 1 | Strict recall | 0.14 |
| HB same residue+role | 1 | HB role recall | 0.17 |
| HB same residue | 1 | HB residue recall | 0.17 |
Protein summary
511 residues
| Protein target | T09 | Atoms | 8170 |
|---|---|---|---|
| Residues | 511 | Chains | 2 |
| Residue summary | LEU:1064; ARG:840; LYS:572; GLU:570; VAL:528; PHE:460; ILE:456; ALA:440; PRO:420; THR:406; TYR:357; ASP:312; GLN:289; ASN:238; SER:231; GLY:224 | ||
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 476 | 2.050050250302212 | -1.0301 | -25.2132 | 4 | 19 | 0 | 0.00 | 0.00 | - | no | Open |
| 411 | 3.169978853998471 | -1.03671 | -23.4005 | 4 | 18 | 15 | 0.71 | 0.17 | - | no | Current |
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-23.401kcal/mol
Ligand efficiency (LE)
-0.9360kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-8.509
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
25HA
Physicochemical properties
Molecular weight
355.4Da
Lipinski: ≤ 500 Da
LogP (cLogP)
3.50
Lipinski: ≤ 5
Rotatable bonds
6
Conformational strain (MMFF94s)
Strain energy (ΔE)
31.08kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
49.56kcal/mol
Minimised FF energy
18.48kcal/mol
SASA & burial
✓ computed
SASA (unbound)
584.4Ų
Total solvent-accessible surface area of free ligand
BSA total
548.9Ų
Buried surface area upon binding
BSA apolar
405.7Ų
Hydrophobic contacts buried
BSA polar
143.1Ų
Polar contacts buried
Fraction buried
93.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
73.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-3204.1Ų
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
4428.5Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
1665.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)