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
Promising but geometrically suspicious
Binding strong
Geometry low
Native mixed
SASA done
Strain ΔE
25.7 kcal/mol
Protein clashes
7
Internal clashes
7
Native overlap
contact recall 0.52, Jaccard 0.42, H-bond role recall 0.45
Reason: 7 internal clashes
7 protein-contact clashes
7 intramolecular clashes
90% of hydrophobic surface is solvent-exposed (9/10 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Molecular report
Weak
Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.706 kcal/mol/HA)
✓ Good fit quality (FQ -13.98)
✓ Strong H-bond network (16 bonds)
✓ Deep burial (93% SASA buried)
✗ High strain energy (25.7 kcal/mol)
✗ Geometry warnings
✗ Internal clashes (5)
Score
-32.415
kcal/mol
LE
-1.706
kcal/mol/HA
Fit Quality
-13.98
FQ (Leeson)
HAC
19
heavy atoms
MW
270
Da
LogP
-2.77
cLogP
Interaction summary
HB 16
HY 1
PI 0
CLASH 7
⚠ Exposure 90%
Interaction summary
HB 16
HY 1
PI 0
CLASH 7
⚠ Exposure 90%
Solvent-exposed hydrophobic surface — desolvation penalty likely
90% of hydrophobic surface is solvent-exposed (9/10 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Non-polar atoms 10
Buried (contacted) 1
Exposed 9
LogP -2.77
H-bonds 16
Exposed fragments:
aromatic ring (2/5 atoms exposed)aromatic ring (4/6 atoms exposed)aliphatic chain/group (4 atoms exposed)
| Final rank | 5.888 | Score | -32.415 |
|---|---|---|---|
| Inter norm | -1.759 | Intra norm | 0.053 |
| Top1000 | no | Excluded | no |
| Contacts | 16 | H-bonds | 16 |
| Artifact reason | geometry warning; 5 clashes; 4 protein clashes; moderate strain Δ 25.7 | ||
| Residues |
ALA24
ALA70
ASN41
ASP68
GLN42
GLU73
GLY23
GLY25
GLY71
LEU39
LYS26
SER22
SER27
SER28
THR44
THR69
| ||
Protein summary
165 residues
| Protein target | T22 | Atoms | 2561 |
|---|---|---|---|
| Residues | 165 | Chains | 1 |
| Residue summary | LEU:363; LYS:242; ALA:231; ARG:214; ILE:190; GLU:180; VAL:144; SER:143; PHE:140; ASN:112; THR:112; TYR:105; GLN:102; ASP:96; GLY:77; TRP:48 | ||
Native ligand reference
★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
| Name | RAB5A | Contacts | 21 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ALA158
ALA24
ALA40
ASN126
ASN41
ASP129
GLN42
GLU21
GLU73
GLY23
GLY25
LEU130
LEU39
LYS127
LYS159
LYS26
PHE38
SER157
SER22
SER27
SER28
| ||
| Current overlap | 11 | Native recall | 0.52 |
| Jaccard | 0.42 | RMSD | - |
| HB strict | 6 | Strict recall | 0.40 |
| HB same residue+role | 5 | HB role recall | 0.45 |
| HB same residue | 5 | HB residue recall | 0.45 |
HB · H-bonds
Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.
PI · π–π interactions
No pi · π–π interactions detected for this pose.
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 165 | 0.5237915164585943 | -1.81857 | -30.9399 | 8 | 12 | 0 | 0.00 | 0.00 | - | no | Open |
| 139 | 1.7889759098987879 | -1.43382 | -22.865 | 11 | 15 | 0 | 0.00 | 0.00 | - | no | Open |
| 120 | 4.736246694260704 | -1.28581 | -18.3183 | 15 | 17 | 0 | 0.00 | 0.00 | - | no | Open |
| 172 | 5.887796265338407 | -1.75872 | -32.4153 | 16 | 16 | 11 | 0.52 | 0.45 | - | no | Current |
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-32.415kcal/mol
Ligand efficiency (LE)
-1.7061kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-13.984
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
19HA
Physicochemical properties
Molecular weight
270.2Da
Lipinski: ≤ 500 Da
LogP (cLogP)
-2.77
Lipinski: ≤ 5
Rotatable bonds
10
Conformational strain (MMFF94s)
Strain energy (ΔE)
25.72kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
105.72kcal/mol
Minimised FF energy
79.99kcal/mol
SASA & burial
✓ computed
SASA (unbound)
460.2Ų
Total solvent-accessible surface area of free ligand
BSA total
429.0Ų
Buried surface area upon binding
BSA apolar
245.9Ų
Hydrophobic contacts buried
BSA polar
183.1Ų
Polar contacts buried
Fraction buried
93.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
57.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-1139.1Ų
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
1368.5Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
504.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)