FAIRMol

OHD_TB2022_31

Pose ID 4126 Compound 1316 Pose 63

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T07
T. brucei PTR1 T. brucei
Ligand OHD_TB2022_31
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
87.6 kcal/mol
Protein clashes
10
Internal clashes
10
Native overlap
contact recall 0.74, Jaccard 0.56, H-bond role recall 0.80
Burial
98%
Hydrophobic fit
57%
Reason: 10 protein-contact clashes, 10 internal clashes, strain 87.6 kcal/mol
strain ΔE 87.6 kcal/mol 10 protein-contact clashes 10 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.856 kcal/mol/HA) ✓ Good fit quality (FQ -8.08) ✓ Strong H-bond network (13 bonds) ✓ Deep burial (98% SASA buried) ✗ Extreme strain energy (87.6 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-23.971
kcal/mol
LE
-0.856
kcal/mol/HA
Fit Quality
-8.08
FQ (Leeson)
HAC
28
heavy atoms
MW
441
Da
LogP
-1.19
cLogP
Strain ΔE
87.6 kcal/mol
SASA buried
98%
Lipo contact
57% BSA apolar/total
SASA unbound
643 Ų
Apolar buried
360 Ų

Interaction summary

HB 13 HY 20 PI 2 CLASH 10

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

Final rank3.858Score-23.971
Inter norm-1.094Intra norm0.238
Top1000noExcludedno
Contacts20H-bonds13
Artifact reasongeometry warning; 5 clashes; 2 protein clashes; 1 cofactor-context clash; high strain Δ 87.6
Residues
ALA96 ARG14 ASN175 ASP161 CYS168 GLN166 GLY205 LEU209 LYS178 MET163 NAP301 PHE97 PRO167 PRO210 SER207 SER95 TRP221 TYR174 VAL164 VAL206

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 overlap14Native recall0.74
Jaccard0.56RMSD-
HB strict5Strict recall0.83
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

Protein summary

275 residues
Protein targetT07Atoms3932
Residues275Chains3
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
62 0.810035212991975 -1.02312 -24.8311 9 20 0 0.00 0.00 - no Open
40 1.5534392733255422 -0.8627 -18.2179 16 20 0 0.00 0.00 - no Open
41 2.174153151104028 -1.18906 -27.7725 6 11 0 0.00 0.00 - no Open
54 2.223234600331605 -0.949567 -21.4001 16 21 0 0.00 0.00 - no Open
74 2.6242008387752502 -1.03371 -23.4084 12 20 0 0.00 0.00 - no Open
73 3.116055422869663 -1.16039 -26.1014 16 20 13 0.68 0.60 - no Open
70 3.4990459052277174 -0.913904 -13.8449 12 20 0 0.00 0.00 - no Open
59 3.5997644114734966 -0.764431 -19.6558 15 12 0 0.00 0.00 - no Open
63 3.8583607402112525 -1.09421 -23.971 13 20 14 0.74 0.80 - no Current
51 4.7034834914662245 -1.09364 -21.0658 16 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 -23.971kcal/mol
Ligand efficiency (LE) -0.8561kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.082
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 441.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) -1.19
Lipinski: ≤ 5
Rotatable bonds 13

Conformational strain (MMFF94s)

Strain energy (ΔE) 87.65kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 6.04kcal/mol
Minimised FF energy -81.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 643.2Ų
Total solvent-accessible surface area of free ligand
BSA total 633.0Ų
Buried surface area upon binding
BSA apolar 359.9Ų
Hydrophobic contacts buried
BSA polar 273.1Ų
Polar contacts buried
Fraction buried 98.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 56.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1503.0Ų
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 914.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)