FAIRMol

OHD_TB2022_44

Pose ID 4819 Compound 31 Pose 78

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_44
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
11.9 kcal/mol
Protein clashes
2
Internal clashes
10
Native overlap
contact recall 0.89, Jaccard 0.85, H-bond role recall 0.60
Burial
95%
Hydrophobic fit
90%
Reason: 10 internal clashes
2 protein-contact clashes 10 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.642 kcal/mol/HA) ✓ Good fit quality (FQ -14.26) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Moderate strain (11.9 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (10)
Score
-36.131
kcal/mol
LE
-1.642
kcal/mol/HA
Fit Quality
-14.26
FQ (Leeson)
HAC
22
heavy atoms
MW
335
Da
LogP
3.13
cLogP
Strain ΔE
11.9 kcal/mol
SASA buried
95%
Lipo contact
90% BSA apolar/total
SASA unbound
538 Ų
Apolar buried
459 Ų

Interaction summary

HB 6 HY 24 PI 3 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 rank-0.209Score-36.131
Inter norm-1.751Intra norm0.109
Top1000noExcludedno
Contacts18H-bonds6
Artifact reasongeometry warning; 10 clashes; 2 protein contact clashes; 1 severe cofactor-context clash
Residues
ALA96 ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 SER207 SER95 TRP221 TYR174 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 overlap17Native recall0.89
Jaccard0.85RMSD-
HB strict4Strict recall0.67
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
78 -0.20912994509114985 -1.75118 -36.1308 6 18 17 0.89 0.60 - no Current
84 0.5438443585937882 -1.2573 -27.98 5 15 0 0.00 0.00 - no Open
80 0.6506929664465294 -1.24509 -27.1953 5 16 0 0.00 0.00 - no Open
68 0.7497043112738141 -1.73014 -35.9228 6 16 15 0.79 0.60 - no Open
75 1.5541187281168434 -1.03619 -21.9615 5 15 0 0.00 0.00 - no Open
77 1.9234445748383517 -1.24712 -26.67 7 19 0 0.00 0.00 - no Open
60 2.0098157272063952 -1.10131 -20.5867 5 15 0 0.00 0.00 - no Open
62 2.071239823785125 -1.01983 -22.2505 8 16 0 0.00 0.00 - no Open
67 2.518150442780698 -1.30567 -25.2304 6 21 0 0.00 0.00 - no Open
73 3.396519251747581 -0.9275 -16.5183 6 12 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 -36.131kcal/mol
Ligand efficiency (LE) -1.6423kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -14.258
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 335.2Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.13
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 11.95kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -0.32kcal/mol
Minimised FF energy -12.26kcal/mol

SASA & burial

✓ computed
SASA (unbound) 537.9Ų
Total solvent-accessible surface area of free ligand
BSA total 513.4Ų
Buried surface area upon binding
BSA apolar 459.5Ų
Hydrophobic contacts buried
BSA polar 53.9Ų
Polar contacts buried
Fraction buried 95.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1616.9Ų
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 918.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)