FAIRMol

Z56903344

Pose ID 4684 Compound 1061 Pose 621

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 Z56903344
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 medium Native strong SASA done
Strain ΔE
18.9 kcal/mol
Protein clashes
3
Internal clashes
4
Native overlap
contact recall 0.68, Jaccard 0.62, H-bond role recall 0.00
Burial
82%
Hydrophobic fit
64%
Reason: no major geometry red flags detected
3 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.280 kcal/mol/HA) ✓ Good fit quality (FQ -12.47) ✓ Good H-bonds (4 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (64%) ✗ Moderate strain (18.9 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (4) ✗ Internal clashes (8)
Score
-39.672
kcal/mol
LE
-1.280
kcal/mol/HA
Fit Quality
-12.47
FQ (Leeson)
HAC
31
heavy atoms
MW
448
Da
LogP
5.41
cLogP
Strain ΔE
18.9 kcal/mol
SASA buried
82%
Lipo contact
64% BSA apolar/total
SASA unbound
685 Ų
Apolar buried
361 Ų

Interaction summary

HB 4 HY 24 PI 6 CLASH 4
Final rank0.474Score-39.672
Inter norm-1.072Intra norm-0.208
Top1000noExcludedno
Contacts15H-bonds4
Artifact reasongeometry warning; 8 clashes; 4 protein contact clashes; 2 cofactor-context clashes
Residues
ARG14 ASP161 CYS168 MET169 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER95 TRP221 TYR174 VAL206 HIS267

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 overlap13Native recall0.68
Jaccard0.62RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue1HB residue recall0.20

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
621 0.4741290904892478 -1.07217 -39.6725 4 15 13 0.68 0.00 - no Current
626 0.6227599201549908 -0.867199 -35.7748 4 16 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 -39.672kcal/mol
Ligand efficiency (LE) -1.2798kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.468
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 448.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.41
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.89kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -9.48kcal/mol
Minimised FF energy -28.37kcal/mol

SASA & burial

✓ computed
SASA (unbound) 685.5Ų
Total solvent-accessible surface area of free ligand
BSA total 558.7Ų
Buried surface area upon binding
BSA apolar 360.6Ų
Hydrophobic contacts buried
BSA polar 198.2Ų
Polar contacts buried
Fraction buried 81.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 64.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1579.1Ų
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 939.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)