FAIRMol

KB_Leish_34

Pose ID 4883 Compound 983 Pose 142

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 KB_Leish_34
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
28.6 kcal/mol
Protein clashes
4
Internal clashes
1
Native overlap
contact recall 0.84, Jaccard 0.73, H-bond role recall 0.60
Burial
84%
Hydrophobic fit
86%
Reason: no major geometry red flags detected
4 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.955 kcal/mol/HA) ✓ Good fit quality (FQ -9.30) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (84% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ High strain energy (28.6 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (4) ✗ Many internal clashes (19)
Score
-29.594
kcal/mol
LE
-0.955
kcal/mol/HA
Fit Quality
-9.30
FQ (Leeson)
HAC
31
heavy atoms
MW
418
Da
LogP
3.00
cLogP
Strain ΔE
28.6 kcal/mol
SASA buried
84%
Lipo contact
86% BSA apolar/total
SASA unbound
713 Ų
Apolar buried
512 Ų

Interaction summary

HB 6 HY 24 PI 5 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 rank1.713Score-29.594
Inter norm-1.034Intra norm0.080
Top1000noExcludedno
Contacts19H-bonds6
Artifact reasongeometry warning; 19 clashes; 4 protein contact clashes; 2 cofactor-context clashes; moderate strain Δ 28.6
Residues
ARG14 ASP161 CYS168 GLU217 GLY205 LEU208 LEU209 LYS220 MET163 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 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 overlap16Native recall0.84
Jaccard0.73RMSD-
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
142 1.7134112149889114 -1.03446 -29.5939 6 19 16 0.84 0.60 - no Current
108 1.832549972618827 -0.994641 -28.9981 7 17 15 0.79 0.40 - no Open
30 3.0354158862778213 -0.639517 -20.3913 3 14 0 0.00 0.00 - no Open
143 3.036003608320648 -0.844612 -23.4937 5 17 0 0.00 0.00 - no Open
26 3.204939574247354 -0.888832 -28.2398 6 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 -29.594kcal/mol
Ligand efficiency (LE) -0.9546kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.300
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 418.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.00
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 28.59kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -153.69kcal/mol
Minimised FF energy -182.28kcal/mol

SASA & burial

✓ computed
SASA (unbound) 713.4Ų
Total solvent-accessible surface area of free ligand
BSA total 597.8Ų
Buried surface area upon binding
BSA apolar 511.8Ų
Hydrophobic contacts buried
BSA polar 86.1Ų
Polar contacts buried
Fraction buried 83.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1749.7Ų
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 921.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)