FAIRMol

Z56815073

Pose ID 5393 Compound 318 Pose 652

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 Z56815073
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
44.2 kcal/mol
Protein clashes
2
Internal clashes
3
Native overlap
contact recall 0.79, Jaccard 0.71, H-bond role recall 0.00
Burial
81%
Hydrophobic fit
80%
Reason: strain 44.2 kcal/mol
strain ΔE 44.2 kcal/mol 2 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.937 kcal/mol/HA) ✓ Good fit quality (FQ -9.21) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Extreme strain energy (44.2 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (14)
Score
-29.980
kcal/mol
LE
-0.937
kcal/mol/HA
Fit Quality
-9.21
FQ (Leeson)
HAC
32
heavy atoms
MW
569
Da
LogP
5.67
cLogP
Strain ΔE
44.2 kcal/mol
SASA buried
81%
Lipo contact
80% BSA apolar/total
SASA unbound
744 Ų
Apolar buried
481 Ų

Interaction summary

HB 1 HY 24 PI 5 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 rank0.823Score-29.980
Inter norm-1.020Intra norm0.083
Top1000noExcludedno
Contacts17H-bonds1
Artifact reasongeometry warning; 14 clashes; 2 protein contact clashes; 1 cofactor-context clash; high strain Δ 44.2
Residues
ALA170 ARG14 ASP161 CYS168 LEU208 LEU209 MET169 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 overlap15Native recall0.79
Jaccard0.71RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
662 0.6661725537921506 -1.04002 -28.6522 3 19 16 0.84 0.00 - no Open
659 0.7707737947628458 -0.753505 -21.1708 0 16 0 0.00 0.00 - no Open
652 0.8225922751736459 -1.01993 -29.9798 1 17 15 0.79 0.00 - no Current
642 1.139808952940768 -0.847734 -26.7285 5 14 0 0.00 0.00 - no Open
656 1.7653889637304623 -0.867492 -24.6089 3 18 0 0.00 0.00 - no Open
655 1.8473635475241321 -1.0072 -32.0974 3 18 0 0.00 0.00 - no Open
638 1.9648568381193203 -0.927569 -29.9449 4 16 0 0.00 0.00 - no Open
645 2.1923496622071084 -0.758001 -17.56 2 18 0 0.00 0.00 - no Open
661 2.2567473265764555 -0.765666 -25.1725 7 20 0 0.00 0.00 - no Open
641 2.292373942513122 -0.725642 -22.2969 4 13 0 0.00 0.00 - no Open
641 2.2974884616866427 -0.933418 -28.8424 4 19 0 0.00 0.00 - no Open
654 3.071439811116401 -0.870778 -29.2301 13 16 0 0.00 0.00 - no Open
659 3.8692944863611776 -0.656079 -21.7278 6 10 0 0.00 0.00 - no Open
660 3.931763085408765 -0.81696 -27.3427 3 19 0 0.00 0.00 - no Open
666 5.297500006745246 -0.919049 -23.1364 13 21 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 -29.980kcal/mol
Ligand efficiency (LE) -0.9369kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.213
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 568.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.67
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 44.17kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 42.73kcal/mol
Minimised FF energy -1.45kcal/mol

SASA & burial

✓ computed
SASA (unbound) 744.4Ų
Total solvent-accessible surface area of free ligand
BSA total 604.1Ų
Buried surface area upon binding
BSA apolar 480.6Ų
Hydrophobic contacts buried
BSA polar 123.5Ų
Polar contacts buried
Fraction buried 81.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1704.6Ų
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 927.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)