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 mixed
SASA done
Strain ΔE
23.8 kcal/mol
Protein clashes
0
Internal clashes
2
Native overlap
contact recall 0.26, Jaccard 0.23, H-bond role recall 0.40
Reason: no major geometry red flags detected
50% of hydrophobic surface appears solvent-exposed (7/14 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Weak
Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.402 kcal/mol/HA)
✓ Good fit quality (FQ -12.17)
✓ Strong H-bond network (9 bonds)
✓ Deep burial (83% SASA buried)
✓ Lipophilic contacts well-matched (77%)
✗ High strain energy (23.8 kcal/mol)
✗ Geometry warnings
Score
-30.835
kcal/mol
LE
-1.402
kcal/mol/HA
Fit Quality
-12.17
FQ (Leeson)
HAC
22
heavy atoms
MW
336
Da
LogP
3.64
cLogP
Interaction summary
HB 9
HY 8
PI 1
CLASH 2
⚠ Exposure 50%
Interaction summary
HB 9
HY 8
PI 1
CLASH 2
⚠ Exposure 50%
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
Partial hydrophobic solvent exposure
50% of hydrophobic surface appears solvent-exposed (7/14 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 14
Buried (contacted) 7
Exposed 7
LogP 3.64
H-bonds 9
Exposed fragments:
phenyl (3/5 atoms exposed)phenyl (2/5 atoms exposed)aliphatic chain/group (3 atoms exposed)
| Final rank | -0.838 | Score | -30.835 |
|---|---|---|---|
| Inter norm | -1.476 | Intra norm | 0.066 |
| Top1000 | no | Excluded | no |
| Contacts | 8 | H-bonds | 9 |
| Artifact reason | geometry warning; 3 clashes; 1 protein contact clash; 6 cofactor-context clashes; moderate strain Δ 23.8 | ||
| Residues |
ARG14
LYS13
NAP301
PHE97
PRO210
SER37
TYR174
VAL211
| ||
Native ligand reference
★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
| Name | TbPTR1_cW_6RX6_Ready | Contacts | 19 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ARG14
ASP161
CYS168
GLY205
LEU208
LEU209
LYS178
MET213
NAP301
PHE171
PHE97
PRO210
PRO99
SER207
SER95
TRP221
TYR174
TYR98
VAL206
| ||
| Current overlap | 5 | Native recall | 0.26 |
| Jaccard | 0.23 | RMSD | - |
| HB strict | 3 | Strict recall | 0.50 |
| HB same residue+role | 2 | HB role recall | 0.40 |
| HB same residue | 2 | HB residue recall | 0.40 |
Protein summary
258 residues
| Protein target | T08 | Atoms | 3881 |
|---|---|---|---|
| Residues | 258 | Chains | 2 |
| Residue summary | LEU:437; VAL:433; ALA:361; ARG:288; ILE:266; GLU:210; LYS:198; SER:198; ASN:182; THR:154; GLN:153; PHE:140; PRO:140; TYR:126; GLY:112; HIS:103 | ||
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:NAP301
All stored poses for this docking hit
| Pose | Final rank | Inter norm | Score | HB | CT | CT overlap | CT recall | HB role rec. | RMSD | Excluded | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 172 | -0.8378049484528997 | -1.47647 | -30.8354 | 9 | 8 | 5 | 0.26 | 0.40 | - | no | Current |
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-30.835kcal/mol
Ligand efficiency (LE)
-1.4016kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-12.169
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
22HA
Physicochemical properties
Molecular weight
335.8Da
Lipinski: ≤ 500 Da
LogP (cLogP)
3.64
Lipinski: ≤ 5
Rotatable bonds
3
Conformational strain (MMFF94s)
Strain energy (ΔE)
23.76kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
-27.75kcal/mol
Minimised FF energy
-51.51kcal/mol
SASA & burial
✓ computed
SASA (unbound)
561.7Ų
Total solvent-accessible surface area of free ligand
BSA total
466.6Ų
Buried surface area upon binding
BSA apolar
361.3Ų
Hydrophobic contacts buried
BSA polar
105.3Ų
Polar contacts buried
Fraction buried
83.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
77.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-1523.1Ų
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
2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
968.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)