FAIRMol

Z2786555116

Pose ID 4669 Compound 2938 Pose 606

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 Z2786555116
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
23.3 kcal/mol
Protein clashes
10
Internal clashes
13
Native overlap
contact recall 0.63, Jaccard 0.48, H-bond role recall 0.40
Burial
94%
Hydrophobic fit
85%
Reason: 10 protein-contact clashes, 13 internal clashes
10 protein-contact clashes 13 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.023 kcal/mol/HA) ✓ Good fit quality (FQ -9.87) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (94% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ High strain energy (23.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (17)
Score
-30.693
kcal/mol
LE
-1.023
kcal/mol/HA
Fit Quality
-9.87
FQ (Leeson)
HAC
30
heavy atoms
MW
420
Da
LogP
4.52
cLogP
Strain ΔE
23.3 kcal/mol
SASA buried
94%
Lipo contact
85% BSA apolar/total
SASA unbound
663 Ų
Apolar buried
533 Ų

Interaction summary

HB 6 HY 24 PI 4 CLASH 13
Final rank3.881Score-30.693
Inter norm-1.024Intra norm0.001
Top1000noExcludedno
Contacts18H-bonds6
Artifact reasongeometry warning; 17 clashes; 1 protein clash; 4 cofactor-context clashes; moderate strain Δ 23.3
Residues
ARG14 ASN175 ASP161 CYS168 GLN166 GLU217 LEU208 LEU209 MET163 MET213 NAP301 PHE97 PRO167 PRO210 SER95 TRP221 TYR174 VAL164

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 overlap12Native recall0.63
Jaccard0.48RMSD-
HB strict2Strict recall0.33
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
629 1.6477735879285778 -0.849058 -23.1853 6 15 0 0.00 0.00 - no Open
615 1.6965270479987242 -1.13624 -32.9274 4 20 0 0.00 0.00 - no Open
619 3.5479907451772705 -0.633588 -17.191 6 7 0 0.00 0.00 - no Open
606 3.880788456472533 -1.02396 -30.6934 6 18 12 0.63 0.40 - no Current
607 4.968202677909962 -0.772271 -20.982 5 9 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 -30.693kcal/mol
Ligand efficiency (LE) -1.0231kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.869
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 419.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.52
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.30kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 49.53kcal/mol
Minimised FF energy 26.23kcal/mol

SASA & burial

✓ computed
SASA (unbound) 662.7Ų
Total solvent-accessible surface area of free ligand
BSA total 624.8Ų
Buried surface area upon binding
BSA apolar 532.8Ų
Hydrophobic contacts buried
BSA polar 91.9Ų
Polar contacts buried
Fraction buried 94.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1708.7Ų
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 914.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)