FAIRMol

Z31121995

Pose ID 5147 Compound 1784 Pose 406

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 Z31121995
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
17.3 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.68, Jaccard 0.57, H-bond role recall 0.20
Burial
98%
Hydrophobic fit
81%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.276 kcal/mol/HA) ✓ Good fit quality (FQ -11.26) ✓ Good H-bonds (3 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Moderate strain (17.3 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Internal clashes (8)
Score
-29.340
kcal/mol
LE
-1.276
kcal/mol/HA
Fit Quality
-11.26
FQ (Leeson)
HAC
23
heavy atoms
MW
327
Da
LogP
3.56
cLogP
Strain ΔE
17.3 kcal/mol
SASA buried
98%
Lipo contact
81% BSA apolar/total
SASA unbound
552 Ų
Apolar buried
435 Ų

Interaction summary

HB 3 HY 24 PI 2 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-0.003Score-29.340
Inter norm-1.393Intra norm0.118
Top1000noExcludedno
Contacts17H-bonds3
Artifact reasongeometry warning; 8 clashes; 3 protein contact clashes
Residues
ARG14 ASN175 ASP161 CYS168 GLY205 LEU208 LEU209 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 SER95 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 overlap13Native recall0.68
Jaccard0.57RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.40

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
406 -0.002764045839430563 -1.3935 -29.3398 3 17 13 0.68 0.20 - no Current
401 1.242244324432947 -1.26549 -29.0246 1 11 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 -29.340kcal/mol
Ligand efficiency (LE) -1.2756kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.259
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 327.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.56
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 17.26kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 44.27kcal/mol
Minimised FF energy 27.01kcal/mol

SASA & burial

✓ computed
SASA (unbound) 551.9Ų
Total solvent-accessible surface area of free ligand
BSA total 539.7Ų
Buried surface area upon binding
BSA apolar 434.9Ų
Hydrophobic contacts buried
BSA polar 104.9Ų
Polar contacts buried
Fraction buried 97.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1567.9Ų
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 922.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)