FAIRMol

Z49633576

Pose ID 8054 Compound 992 Pose 602

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T12
T. brucei R5P T. brucei
Ligand Z49633576
PDB6FXS

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
85.3 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 1.00, Jaccard 0.84, H-bond role recall 0.60
Burial
79%
Hydrophobic fit
58%
Reason: strain 85.3 kcal/mol
strain ΔE 85.3 kcal/mol 3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.788 kcal/mol/HA) ✓ Good fit quality (FQ -7.60) ✓ Strong H-bond network (16 bonds) ✓ Deep burial (79% SASA buried) ✗ Extreme strain energy (85.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-23.637
kcal/mol
LE
-0.788
kcal/mol/HA
Fit Quality
-7.60
FQ (Leeson)
HAC
30
heavy atoms
MW
439
Da
LogP
1.07
cLogP
Strain ΔE
85.3 kcal/mol
SASA buried
79%
Lipo contact
58% BSA apolar/total
SASA unbound
632 Ų
Apolar buried
288 Ų

Interaction summary

HB 16 HY 9 PI 2 CLASH 3

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 rank4.713Score-23.637
Inter norm-1.102Intra norm0.314
Top1000noExcludedno
Contacts19H-bonds16
Artifact reasongeometry warning; 12 clashes; 2 protein clashes; high strain Δ 85.3
Residues
ARG140 ARG144 ASN106 HIS105 HIS141 MET101 TYR97 ARG116 ARG46 ASP13 CYS72 GLY73 GLY75 GLY77 HIS14 ILE15 ILE76 SER74 TYR49

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6FXSContacts16
PoseOpen native poseHB0
IFP residues
ARG140 ARG144 ASN106 HIS105 HIS141 ARG46 ASP13 CYS72 GLY73 GLY75 GLY77 HIS14 ILE15 ILE76 SER74 TYR49
Current overlap16Native recall1.00
Jaccard0.84RMSD-
HB strict6Strict recall0.50
HB same residue+role6HB role recall0.60
HB same residue7HB residue recall0.70

Protein summary

302 residues
Protein targetT12Atoms4598
Residues302Chains2
Residue summaryARG:576; ILE:456; VAL:448; GLU:360; ALA:340; LEU:304; TYR:252; HIS:204; PRO:196; THR:196; GLY:182; LYS:176; ASP:168; PHE:160; MET:153; SER:121

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:CSD72

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
592 1.088467834021099 -1.21638 -35.5119 11 17 0 0.00 0.00 - no Open
591 1.279920394623608 -0.958585 -27.9306 8 14 0 0.00 0.00 - no Open
614 2.169494058727323 -0.722846 -19.1394 4 9 0 0.00 0.00 - no Open
614 2.3485621669480374 -0.756077 -21.8538 8 17 0 0.00 0.00 - no Open
608 2.3978756382173834 -0.914409 -20.3444 11 15 0 0.00 0.00 - no Open
607 2.7193451061352016 -1.01606 -22.4387 11 12 0 0.00 0.00 - no Open
599 3.151702278102694 -0.858251 -17.4184 6 18 0 0.00 0.00 - no Open
605 4.43482713094104 -1.22494 -33.3039 11 22 0 0.00 0.00 - no Open
602 4.713471072673453 -1.10206 -23.637 16 19 16 1.00 0.60 - no Current
613 5.4625540130581856 -1.04999 -29.3846 12 17 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 -23.637kcal/mol
Ligand efficiency (LE) -0.7879kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.600
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 439.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.07
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 85.25kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 143.55kcal/mol
Minimised FF energy 58.30kcal/mol

SASA & burial

✓ computed
SASA (unbound) 632.5Ų
Total solvent-accessible surface area of free ligand
BSA total 500.3Ų
Buried surface area upon binding
BSA apolar 288.1Ų
Hydrophobic contacts buried
BSA polar 212.1Ų
Polar contacts buried
Fraction buried 79.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 57.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2071.7Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 759.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)