FAIRMol

ulfkktlib_2693

Pose ID 4260 Compound 2740 Pose 197

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 ulfkktlib_2693
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 mixed SASA done
Strain ΔE
8.4 kcal/mol
Protein clashes
2
Internal clashes
3
Native overlap
contact recall 0.42, Jaccard 0.33, H-bond role recall 0.20
Burial
96%
Hydrophobic fit
89%
Reason: no major geometry red flags detected
2 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.702 kcal/mol/HA) ✓ Good fit quality (FQ -13.31) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (89%) ✗ Moderate strain (8.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-28.933
kcal/mol
LE
-1.702
kcal/mol/HA
Fit Quality
-13.31
FQ (Leeson)
HAC
17
heavy atoms
MW
226
Da
LogP
2.67
cLogP
Strain ΔE
8.4 kcal/mol
SASA buried
96%
Lipo contact
89% BSA apolar/total
SASA unbound
489 Ų
Apolar buried
418 Ų

Interaction summary

HB 7 HY 24 PI 2 CLASH 3

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 rank0.412Score-28.933
Inter norm-1.776Intra norm0.074
Top1000noExcludedno
Contacts13H-bonds7
Artifact reasongeometry warning; 6 clashes; 1 protein clash; 4 cofactor-context clashes
Residues
ARG14 ASN175 ASP161 CYS168 GLN166 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 overlap8Native recall0.42
Jaccard0.33RMSD-
HB strict2Strict recall0.33
HB same residue+role1HB role recall0.20
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
197 0.41235907006612305 -1.77558 -28.9332 7 13 8 0.42 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 -28.933kcal/mol
Ligand efficiency (LE) -1.7020kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -13.309
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 17HA

Physicochemical properties

Molecular weight 226.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.67
Lipinski: ≤ 5
Rotatable bonds 2

Conformational strain (MMFF94s)

Strain energy (ΔE) 8.43kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 29.72kcal/mol
Minimised FF energy 21.30kcal/mol

SASA & burial

✓ computed
SASA (unbound) 489.2Ų
Total solvent-accessible surface area of free ligand
BSA total 472.0Ų
Buried surface area upon binding
BSA apolar 418.2Ų
Hydrophobic contacts buried
BSA polar 53.8Ų
Polar contacts buried
Fraction buried 96.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 88.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1558.8Ų
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 928.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)