FAIRMol

Z56932065

Pose ID 4456 Compound 578 Pose 393

DB fairmolDocking 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 Z56932065
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
52.2 kcal/mol
Protein clashes
2
Internal clashes
3
Native overlap
contact recall 0.74, Jaccard 0.61, H-bond role recall 0.60
Burial
99%
Hydrophobic fit
72%
Reason: strain 52.2 kcal/mol
strain ΔE 52.2 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 (-1.164 kcal/mol/HA) ✓ Good fit quality (FQ -10.59) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (99% SASA buried) ✓ Lipophilic contacts well-matched (72%) ✗ Extreme strain energy (52.2 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (6) ✗ Internal clashes (5)
Score
-29.110
kcal/mol
LE
-1.164
kcal/mol/HA
Fit Quality
-10.59
FQ (Leeson)
HAC
25
heavy atoms
MW
376
Da
LogP
1.67
cLogP
Strain ΔE
52.2 kcal/mol
SASA buried
99%
Lipo contact
72% BSA apolar/total
SASA unbound
606 Ų
Apolar buried
428 Ų

Interaction summary

HB 10 HY 24 PI 3 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 rank0.233Score-29.110
Inter norm-1.418Intra norm0.254
Top1000noExcludedno
Contacts18H-bonds10
Artifact reasongeometry warning; 5 clashes; 6 protein contact clashes; 1 severe cofactor-context clash; high strain Δ 52.2
Residues
ARG14 ASN175 ASP161 CYS168 GLY205 LEU209 MET163 MET213 NAP301 PHE171 PHE97 PRO167 SER207 SER95 TRP221 TYR174 VAL164 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 overlap14Native recall0.74
Jaccard0.61RMSD-
HB strict4Strict recall0.67
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
395 0.10927334712649962 -1.0296 -21.6302 11 14 0 0.00 0.00 - no Open
422 0.14692465670760751 -1.36126 -25.1177 11 18 14 0.74 0.60 - no Open
393 0.2333073319917216 -1.41845 -29.1095 10 18 14 0.74 0.60 - no Current
423 1.6098485630425021 -1.07617 -25.9897 8 12 0 0.00 0.00 - no Open
466 2.1741307385320137 -0.984654 -21.2362 6 18 0 0.00 0.00 - no Open
499 3.024266895819682 -0.977796 -21.3529 6 13 0 0.00 0.00 - no Open
485 3.395760459171136 -1.21637 -25.8565 4 19 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 -29.110kcal/mol
Ligand efficiency (LE) -1.1644kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.585
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 376.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.67
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 52.18kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 95.19kcal/mol
Minimised FF energy 43.01kcal/mol

SASA & burial

✓ computed
SASA (unbound) 606.4Ų
Total solvent-accessible surface area of free ligand
BSA total 598.7Ų
Buried surface area upon binding
BSA apolar 428.1Ų
Hydrophobic contacts buried
BSA polar 170.6Ų
Polar contacts buried
Fraction buried 98.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 71.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1570.2Ų
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 914.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)