FAIRMol

KB_Leish_37

Pose ID 4885 Compound 3018 Pose 144

DB SELECTIONDocking 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 KB_Leish_37
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
Weak or marginal quality
Binding strong Geometry high Native strong SASA done
Strain ΔE
9.0 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.68, Jaccard 0.59, H-bond role recall 0.60
Burial
97%
Hydrophobic fit
90%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.460 kcal/mol/HA) ✓ Good fit quality (FQ -12.88) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Moderate strain (9.0 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (15)
Score
-33.568
kcal/mol
LE
-1.460
kcal/mol/HA
Fit Quality
-12.88
FQ (Leeson)
HAC
23
heavy atoms
MW
302
Da
LogP
2.74
cLogP
Strain ΔE
9.0 kcal/mol
SASA buried
97%
Lipo contact
90% BSA apolar/total
SASA unbound
530 Ų
Apolar buried
463 Ų

Interaction summary

HB 7 HY 24 PI 3 CLASH 1

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 rank0.721Score-33.568
Inter norm-1.453Intra norm-0.007
Top1000noExcludedno
Contacts16H-bonds7
Artifact reasongeometry warning; 15 clashes; 3 protein contact clashes; 2 cofactor-context clashes
Residues
ALA96 ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LEU263 MET163 NAP301 PHE97 PRO210 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 overlap13Native recall0.68
Jaccard0.59RMSD-
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
144 0.7205029731032627 -1.45258 -33.5676 7 16 13 0.68 0.60 - no Current
125 3.271723450978098 -0.89539 -21.1476 2 6 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 -33.568kcal/mol
Ligand efficiency (LE) -1.4595kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.881
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 302.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.74
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 9.01kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -55.91kcal/mol
Minimised FF energy -64.91kcal/mol

SASA & burial

✓ computed
SASA (unbound) 529.7Ų
Total solvent-accessible surface area of free ligand
BSA total 515.8Ų
Buried surface area upon binding
BSA apolar 463.2Ų
Hydrophobic contacts buried
BSA polar 52.6Ų
Polar contacts buried
Fraction buried 97.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1604.0Ų
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 924.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)