FAIRMol

Z31076755

Pose ID 4566 Compound 2667 Pose 503

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 Z31076755
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native strong SASA done
Strain ΔE
17.1 kcal/mol
Protein clashes
0
Internal clashes
1
Native overlap
contact recall 0.79, Jaccard 0.79, H-bond role recall 0.00
Burial
92%
Hydrophobic fit
63%
Reason: no major geometry red flags detected
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.257 kcal/mol/HA) ✓ Good fit quality (FQ -10.91) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (63%) ✗ Moderate strain (17.1 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-27.649
kcal/mol
LE
-1.257
kcal/mol/HA
Fit Quality
-10.91
FQ (Leeson)
HAC
22
heavy atoms
MW
347
Da
LogP
3.47
cLogP
Strain ΔE
17.1 kcal/mol
SASA buried
92%
Lipo contact
63% BSA apolar/total
SASA unbound
529 Ų
Apolar buried
307 Ų

Interaction summary

HB 1 HY 24 PI 6 CLASH 1

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 rank-0.413Score-27.649
Inter norm-1.410Intra norm0.153
Top1000noExcludedno
Contacts15H-bonds1
Artifact reasongeometry warning; 7 clashes; 1 protein contact clash; 2 cofactor-context clashes
Residues
ARG14 ASP161 CYS168 GLY205 LEU209 MET213 NAP301 PHE171 PHE97 PRO210 SER207 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
Jaccard0.79RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue1HB residue recall0.20

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
503 -0.412716455525595 -1.4097 -27.6491 1 15 15 0.79 0.00 - no Current
539 1.74159394392578 -1.15122 -25.5295 8 17 0 0.00 0.00 - no Open
517 2.6126169913137653 -1.21113 -26.8425 4 13 0 0.00 0.00 - no Open
520 3.4185448372354834 -1.32408 -28.697 12 13 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 -27.649kcal/mol
Ligand efficiency (LE) -1.2568kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.911
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 346.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.47
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 17.14kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 15.88kcal/mol
Minimised FF energy -1.26kcal/mol

SASA & burial

✓ computed
SASA (unbound) 529.0Ų
Total solvent-accessible surface area of free ligand
BSA total 487.3Ų
Buried surface area upon binding
BSA apolar 307.1Ų
Hydrophobic contacts buried
BSA polar 180.2Ų
Polar contacts buried
Fraction buried 92.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 63.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1458.0Ų
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 937.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)