FAIRMol

Z26395492

Pose ID 5303 Compound 2493 Pose 562

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 Z26395492
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
11.5 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.53, Jaccard 0.43, H-bond role recall 0.60
Burial
95%
Hydrophobic fit
92%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.391 kcal/mol/HA) ✓ Good fit quality (FQ -11.64) ✓ Good H-bonds (5 bonds) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ Moderate strain (11.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-27.824
kcal/mol
LE
-1.391
kcal/mol/HA
Fit Quality
-11.64
FQ (Leeson)
HAC
20
heavy atoms
MW
264
Da
LogP
3.14
cLogP
Strain ΔE
11.5 kcal/mol
SASA buried
95%
Lipo contact
92% BSA apolar/total
SASA unbound
528 Ų
Apolar buried
464 Ų

Interaction summary

HB 5 HY 24 PI 2 CLASH 5

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 rank1.312Score-27.824
Inter norm-1.636Intra norm0.245
Top1000noExcludedno
Contacts14H-bonds5
Artifact reasongeometry warning; 6 clashes; 1 protein clash; 1 cofactor-context clash
Residues
ARG14 ASN175 ASP161 CYS168 LEU208 LEU209 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 TYR174 VAL164

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 overlap10Native recall0.53
Jaccard0.43RMSD-
HB strict3Strict recall0.50
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
557 1.131040309290696 -1.15033 -19.1211 2 17 0 0.00 0.00 - no Open
555 1.254313492004946 -1.71694 -29.6005 5 14 10 0.53 0.60 - no Open
562 1.311703260614133 -1.63593 -27.824 5 14 10 0.53 0.60 - no Current
592 2.299565977536469 -1.05606 -17.3541 4 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 -27.824kcal/mol
Ligand efficiency (LE) -1.3912kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.642
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 20HA

Physicochemical properties

Molecular weight 264.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.14
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 11.52kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 25.62kcal/mol
Minimised FF energy 14.10kcal/mol

SASA & burial

✓ computed
SASA (unbound) 528.1Ų
Total solvent-accessible surface area of free ligand
BSA total 502.5Ų
Buried surface area upon binding
BSA apolar 463.6Ų
Hydrophobic contacts buried
BSA polar 39.0Ų
Polar contacts buried
Fraction buried 95.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 92.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1600.7Ų
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 937.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)