FAIRMol

Z44591573

Pose ID 4672 Compound 1210 Pose 609

DB fairmolDocking 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 Z44591573
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
30.4 kcal/mol
Protein clashes
4
Internal clashes
5
Native overlap
contact recall 0.68, Jaccard 0.65, H-bond role recall 0.40
Burial
86%
Hydrophobic fit
81%
Reason: no major geometry red flags detected
4 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.932 kcal/mol/HA) ✓ Good fit quality (FQ -8.80) ✓ Good H-bonds (4 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Very high strain energy (30.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-26.110
kcal/mol
LE
-0.932
kcal/mol/HA
Fit Quality
-8.80
FQ (Leeson)
HAC
28
heavy atoms
MW
397
Da
LogP
4.14
cLogP
Strain ΔE
30.4 kcal/mol
SASA buried
86%
Lipo contact
81% BSA apolar/total
SASA unbound
655 Ų
Apolar buried
456 Ų

Interaction summary

HB 4 HY 24 PI 6 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 rank2.174Score-26.110
Inter norm-1.094Intra norm0.161
Top1000noExcludedno
Contacts14H-bonds4
Artifact reasongeometry warning; 12 clashes; 1 protein clash; 2 cofactor-context clashes; high strain Δ 30.4
Residues
ARG14 CYS168 LEU208 LEU209 MET169 MET213 NAP301 PHE171 PHE97 PRO210 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 overlap13Native recall0.68
Jaccard0.65RMSD-
HB strict1Strict recall0.17
HB same residue+role2HB role recall0.40
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
602 1.1357693546221022 -0.813918 -16.5317 0 17 0 0.00 0.00 - no Open
616 1.9150463881723574 -0.963331 -24.9045 3 16 0 0.00 0.00 - no Open
609 2.1735595906442664 -1.09358 -26.1104 4 14 13 0.68 0.40 - no Current
604 2.3131829618973265 -0.999243 -25.907 5 12 0 0.00 0.00 - no Open
624 3.3423050438406383 -0.798124 -16.9894 3 18 0 0.00 0.00 - no Open
620 3.51941158421158 -0.691049 -18.7615 6 8 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 -26.110kcal/mol
Ligand efficiency (LE) -0.9325kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.803
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 397.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.14
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.37kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -32.59kcal/mol
Minimised FF energy -62.96kcal/mol

SASA & burial

✓ computed
SASA (unbound) 655.4Ų
Total solvent-accessible surface area of free ligand
BSA total 563.5Ų
Buried surface area upon binding
BSA apolar 455.9Ų
Hydrophobic contacts buried
BSA polar 107.6Ų
Polar contacts buried
Fraction buried 86.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1660.5Ų
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 929.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)