FAIRMol

Z56833785

Pose ID 4638 Compound 2693 Pose 575

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 Z56833785
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
18.1 kcal/mol
Protein clashes
1
Internal clashes
2
Native overlap
contact recall 0.63, Jaccard 0.60, H-bond role recall 0.20
Burial
86%
Hydrophobic fit
93%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.914 kcal/mol/HA) ✓ Good fit quality (FQ -8.31) ✓ Good H-bonds (4 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (93%) ✗ Moderate strain (18.1 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-22.859
kcal/mol
LE
-0.914
kcal/mol/HA
Fit Quality
-8.31
FQ (Leeson)
HAC
25
heavy atoms
MW
331
Da
LogP
4.31
cLogP
Strain ΔE
18.1 kcal/mol
SASA buried
86%
Lipo contact
93% BSA apolar/total
SASA unbound
599 Ų
Apolar buried
477 Ų

Interaction summary

HB 4 HY 24 PI 6 CLASH 2

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-0.069Score-22.859
Inter norm-1.231Intra norm0.317
Top1000noExcludedno
Contacts13H-bonds4
Artifact reasongeometry warning; 9 clashes; 1 protein contact clash; 2 cofactor-context clashes
Residues
ASP161 CYS168 GLU217 GLY205 LEU209 MET213 NAP301 PHE171 PHE97 SER207 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 overlap12Native recall0.63
Jaccard0.60RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.40

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
575 -0.06929567226379495 -1.23142 -22.8592 4 13 12 0.63 0.20 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -22.859kcal/mol
Ligand efficiency (LE) -0.9144kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.312
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 331.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.31
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.12kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -24.25kcal/mol
Minimised FF energy -42.37kcal/mol

SASA & burial

✓ computed
SASA (unbound) 599.2Ų
Total solvent-accessible surface area of free ligand
BSA total 514.6Ų
Buried surface area upon binding
BSA apolar 477.4Ų
Hydrophobic contacts buried
BSA polar 37.2Ų
Polar contacts buried
Fraction buried 85.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 92.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1696.1Ų
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 917.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)