FAIRMol

Z56845221

Pose ID 4729 Compound 1656 Pose 666

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 Z56845221
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 mixed SASA done
Strain ΔE
18.7 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.47, Jaccard 0.39, H-bond role recall 0.00
Burial
97%
Hydrophobic fit
68%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.536 kcal/mol/HA) ✓ Good fit quality (FQ -12.59) ✓ Good H-bonds (4 bonds) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ Moderate strain (18.7 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2)
Score
-29.174
kcal/mol
LE
-1.536
kcal/mol/HA
Fit Quality
-12.59
FQ (Leeson)
HAC
19
heavy atoms
MW
308
Da
LogP
3.86
cLogP
Strain ΔE
18.7 kcal/mol
SASA buried
97%
Lipo contact
68% BSA apolar/total
SASA unbound
521 Ų
Apolar buried
342 Ų

Interaction summary

HB 4 HY 24 PI 4 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-0.879Score-29.174
Inter norm-1.594Intra norm0.059
Top1000noExcludedno
Contacts13H-bonds4
Artifact reasongeometry warning; 3 clashes; 2 protein contact clashes
Residues
ARG14 ASN175 ASP161 CYS168 LYS178 MET163 NAP301 PHE171 PHE97 PRO167 SER95 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 overlap9Native recall0.47
Jaccard0.39RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue1HB residue recall0.20

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
666 -0.8794313331773516 -1.59413 -29.1739 4 13 9 0.47 0.00 - no Current
661 0.41553730051275123 -1.39667 -25.7584 3 11 0 0.00 0.00 - no Open
663 0.6103829203165203 -1.17145 -22.0213 5 13 0 0.00 0.00 - no Open
663 1.2061701241431626 -1.35954 -25.9347 6 15 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 -29.174kcal/mol
Ligand efficiency (LE) -1.5355kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.586
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 19HA

Physicochemical properties

Molecular weight 308.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.86
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.73kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 35.71kcal/mol
Minimised FF energy 16.98kcal/mol

SASA & burial

✓ computed
SASA (unbound) 520.8Ų
Total solvent-accessible surface area of free ligand
BSA total 503.9Ų
Buried surface area upon binding
BSA apolar 341.9Ų
Hydrophobic contacts buried
BSA polar 161.9Ų
Polar contacts buried
Fraction buried 96.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1465.8Ų
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 929.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)