FAIRMol

Z1213738863

Pose ID 4594 Compound 262 Pose 531

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 Z1213738863
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
35.2 kcal/mol
Protein clashes
8
Internal clashes
9
Native overlap
contact recall 0.74, Jaccard 0.61, H-bond role recall 0.20
Burial
90%
Hydrophobic fit
85%
Reason: 9 internal clashes
8 protein-contact clashes 9 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.652 kcal/mol/HA) ✓ Good fit quality (FQ -6.68) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (90% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Very high strain energy (35.2 kcal/mol) ✗ Geometry warnings ✗ Severe protein-contact clashes (12) ✗ Many internal clashes (22)
Score
-24.142
kcal/mol
LE
-0.652
kcal/mol/HA
Fit Quality
-6.68
FQ (Leeson)
HAC
37
heavy atoms
MW
496
Da
LogP
1.19
cLogP
Strain ΔE
35.2 kcal/mol
SASA buried
90%
Lipo contact
85% BSA apolar/total
SASA unbound
802 Ų
Apolar buried
613 Ų

Interaction summary

HB 6 HY 24 PI 5 CLASH 9
Final rank3.462Score-24.142
Inter norm-0.819Intra norm0.167
Top1000noExcludedno
Contacts18H-bonds6
Artifact reasongeometry warning; 22 clashes; 12 protein contact clashes; 2 cofactor-context clashes; high strain Δ 35.2
Residues
ARG14 ASN175 ASP161 CYS168 LEU208 LEU209 LYS178 MET163 MET213 NAP301 PHE171 PHE97 PRO167 PRO210 TRP221 TYR174 VAL164 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
Jaccard0.61RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
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
575 1.7367596243972625 -0.748868 -25.2481 2 20 0 0.00 0.00 - no Open
550 1.9935561476862842 -0.64944 -21.5198 2 14 0 0.00 0.00 - no Open
564 2.146994493424201 -0.736414 -24.5708 2 19 0 0.00 0.00 - no Open
537 3.339209688828407 -1.03382 -34.0594 5 18 13 0.68 0.20 - no Open
570 3.3418494469702504 -0.644097 -21.1074 7 14 0 0.00 0.00 - no Open
531 3.4623295539520593 -0.819231 -24.1424 6 18 14 0.74 0.20 - no Current
538 3.4806218065960888 -0.747223 -23.0803 10 17 0 0.00 0.00 - no Open
555 4.826281943867511 -0.818842 -26.3565 9 20 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 -24.142kcal/mol
Ligand efficiency (LE) -0.6525kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.680
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 37HA

Physicochemical properties

Molecular weight 495.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.19
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 35.19kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -61.66kcal/mol
Minimised FF energy -96.84kcal/mol

SASA & burial

✓ computed
SASA (unbound) 802.0Ų
Total solvent-accessible surface area of free ligand
BSA total 720.9Ų
Buried surface area upon binding
BSA apolar 612.5Ų
Hydrophobic contacts buried
BSA polar 108.4Ų
Polar contacts buried
Fraction buried 89.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1814.3Ų
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 918.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)