FAIRMol

Z31122016

Pose ID 4623 Compound 433 Pose 560

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 Z31122016
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
22.7 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.74, Jaccard 0.67, H-bond role recall 0.40
Burial
94%
Hydrophobic fit
81%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.887 kcal/mol/HA) ✓ Good fit quality (FQ -8.28) ✓ Good H-bonds (5 bonds) ✓ Deep burial (94% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ High strain energy (22.7 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (12)
Score
-23.960
kcal/mol
LE
-0.887
kcal/mol/HA
Fit Quality
-8.28
FQ (Leeson)
HAC
27
heavy atoms
MW
375
Da
LogP
4.61
cLogP
Strain ΔE
22.7 kcal/mol
SASA buried
94%
Lipo contact
81% BSA apolar/total
SASA unbound
575 Ų
Apolar buried
438 Ų

Interaction summary

HB 5 HY 24 PI 4 CLASH 2
Final rank0.638Score-23.960
Inter norm-1.167Intra norm0.280
Top1000noExcludedno
Contacts16H-bonds5
Artifact reasongeometry warning; 12 clashes; 3 protein contact clashes; 1 severe cofactor-context clash; moderate strain Δ 22.7
Residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LEU263 MET163 MET213 NAP301 PHE97 PRO210 SER95 TRP221 TYR174 VAL206

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

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
Jaccard0.67RMSD-
HB strict1Strict recall0.17
HB same residue+role2HB role recall0.40
HB same residue3HB residue recall0.60

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
568 -0.0334663548568221 -1.27797 -30.3243 8 13 12 0.63 0.40 - no Open
569 0.5185640276379698 -0.887128 -18.3923 1 15 0 0.00 0.00 - no Open
560 0.6381548058350248 -1.16743 -23.9596 5 16 14 0.74 0.40 - no Current
586 1.674028863819306 -1.10113 -27.3802 1 11 0 0.00 0.00 - no Open
582 2.4827463131089225 -0.734149 -15.3565 5 11 0 0.00 0.00 - no Open
589 2.497425920565252 -0.956266 -24.8937 4 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 -23.960kcal/mol
Ligand efficiency (LE) -0.8874kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.279
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 375.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.61
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 22.73kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 53.76kcal/mol
Minimised FF energy 31.03kcal/mol

SASA & burial

✓ computed
SASA (unbound) 575.5Ų
Total solvent-accessible surface area of free ligand
BSA total 538.2Ų
Buried surface area upon binding
BSA apolar 438.1Ų
Hydrophobic contacts buried
BSA polar 100.2Ų
Polar contacts buried
Fraction buried 93.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1621.1Ų
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 906.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)