FAIRMol

OHD_TB2022_30

Pose ID 4813 Compound 2128 Pose 72

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_30
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
66.1 kcal/mol
Protein clashes
4
Internal clashes
5
Native overlap
contact recall 0.79, Jaccard 0.60, H-bond role recall 0.40
Burial
98%
Hydrophobic fit
57%
Reason: strain 66.1 kcal/mol
strain ΔE 66.1 kcal/mol 4 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.028 kcal/mol/HA) ✓ Good fit quality (FQ -9.47) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (98% SASA buried) ✗ Extreme strain energy (66.1 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-26.736
kcal/mol
LE
-1.028
kcal/mol/HA
Fit Quality
-9.47
FQ (Leeson)
HAC
26
heavy atoms
MW
393
Da
LogP
-2.41
cLogP
Final rank
3.2832
rank score
Inter norm
-1.420
normalised
Contacts
21
H-bonds 16
Strain ΔE
66.1 kcal/mol
SASA buried
98%
Lipo contact
57% BSA apolar/total
SASA unbound
626 Ų
Apolar buried
354 Ų

Interaction summary

HBD 4 HBA 5 HY 6 PI 2 CLASH 5

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 6.

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.
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 overlap15Native recall0.79
Jaccard0.60RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
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
55 2.050732154185843 -1.0665 -22.9881 8 15 0 0.00 0.00 - no Open
72 3.283247079754202 -1.41965 -26.7358 16 21 15 0.79 0.40 - no Current

Molecular metrics

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

Scoring & efficiency

Docking score -26.736kcal/mol
Ligand efficiency (LE) -1.0283kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.474
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 393.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) -2.41
Lipinski: ≤ 5
Rotatable bonds 14

Conformational strain (MMFF94s)

Strain energy (ΔE) 66.13kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 22.65kcal/mol
Minimised FF energy -43.47kcal/mol

SASA & burial

✓ computed
SASA (unbound) 625.8Ų
Total solvent-accessible surface area of free ligand
BSA total 616.7Ų
Buried surface area upon binding
BSA apolar 353.8Ų
Hydrophobic contacts buried
BSA polar 262.9Ų
Polar contacts buried
Fraction buried 98.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 57.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1496.8Ų
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 2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 916.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)