FAIRMol

OHD_TB2022_21

Pose ID 4811 Compound 628 Pose 70

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T08
T. brucei PTR1 T. brucei
Ligand OHD_TB2022_21
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
26.8 kcal/mol
Protein clashes
2
Internal clashes
15
Native overlap
contact recall 0.84, Jaccard 0.70, H-bond role recall 0.80
Burial
86%
Hydrophobic fit
85%
Reason: 15 internal clashes
2 protein-contact clashes 15 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.903 kcal/mol/HA) ✓ Good fit quality (FQ -9.25) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ High strain energy (26.8 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (15)
Score
-33.425
kcal/mol
LE
-0.903
kcal/mol/HA
Fit Quality
-9.25
FQ (Leeson)
HAC
37
heavy atoms
MW
495
Da
LogP
3.17
cLogP
Strain ΔE
26.8 kcal/mol
SASA buried
86%
Lipo contact
85% BSA apolar/total
SASA unbound
809 Ų
Apolar buried
592 Ų

Interaction summary

HB 7 HY 24 PI 5 CLASH 0

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

No clash · clashes detected for this pose.
Final rank0.944Score-33.425
Inter norm-1.147Intra norm0.243
Top1000noExcludedno
Contacts20H-bonds7
Artifact reasongeometry warning; 15 clashes; 2 protein contact clashes; 1 severe cofactor-context clash; moderate strain Δ 26.8
Residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LEU263 MET163 MET169 MET213 NAP301 PHE171 PHE97 PRO210 SER207 SER95 TRP221 TYR174 VAL206 HIS267

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
NameTbPTR1_cW_6RX6_ReadyContacts19
PoseOpen native poseHB0
IFP residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER207 SER95 TRP221 TYR174 TYR98 VAL206
Current overlap16Native recall0.84
Jaccard0.70RMSD-
HB strict5Strict recall0.83
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

Protein summary

258 residues
Protein targetT08Atoms3881
Residues258Chains2
Residue summaryLEU: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

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
70 0.9441837428913401 -1.14683 -33.4245 7 20 16 0.84 0.80 - no Current
60 1.353649379244449 -1.14596 -33.7036 7 21 17 0.89 0.80 - no Open
53 2.955680988621583 -0.717527 -22.2933 7 21 0 0.00 0.00 - no Open
56 3.0450219135992884 -0.711971 -23.6267 8 16 0 0.00 0.00 - no Open
68 3.157440750940877 -0.734977 -22.3917 9 24 0 0.00 0.00 - no Open
52 3.2354079941176104 -0.785109 -24.9697 4 18 0 0.00 0.00 - no Open
78 4.087075192168423 -0.776562 -24.1835 11 21 0 0.00 0.00 - no Open
70 4.300072111504438 -0.965604 -29.7543 10 21 0 0.00 0.00 - no Open
47 4.4701940342157265 -0.737164 -25.0202 11 19 0 0.00 0.00 - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -33.425kcal/mol
Ligand efficiency (LE) -0.9034kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.249
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 37HA

Physicochemical properties

Molecular weight 494.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.17
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.79kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 20.04kcal/mol
Minimised FF energy -6.75kcal/mol

SASA & burial

✓ computed
SASA (unbound) 809.1Ų
Total solvent-accessible surface area of free ligand
BSA total 695.0Ų
Buried surface area upon binding
BSA apolar 591.9Ų
Hydrophobic contacts buried
BSA polar 103.1Ų
Polar contacts buried
Fraction buried 85.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1817.6Ų
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 921.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)