FAIRMol

KB_HAT_128

Pose ID 4165 Compound 2858 Pose 102

DB SELECTIONDocking 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 KB_HAT_128
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
15.2 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.63, Jaccard 0.60, H-bond role recall 0.40
Burial
97%
Hydrophobic fit
77%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.411 kcal/mol/HA) ✓ Good fit quality (FQ -12.04) ✓ Good H-bonds (5 bonds) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ Moderate strain (15.2 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-29.634
kcal/mol
LE
-1.411
kcal/mol/HA
Fit Quality
-12.04
FQ (Leeson)
HAC
21
heavy atoms
MW
300
Da
LogP
2.21
cLogP
Strain ΔE
15.2 kcal/mol
SASA buried
97%
Lipo contact
77% BSA apolar/total
SASA unbound
516 Ų
Apolar buried
384 Ų

Interaction summary

HB 5 HY 24 PI 4 CLASH 1
Final rank1.542Score-29.634
Inter norm-1.482Intra norm0.071
Top1000noExcludedno
Contacts13H-bonds5
Artifact reasongeometry warning; 8 clashes; 1 protein clash
Residues
ARG14 ASP161 CYS168 LEU208 LEU209 MET163 MET213 NAP301 PHE97 PRO210 TRP221 TYR174 VAL206

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

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 overlap12Native recall0.63
Jaccard0.60RMSD-
HB strict1Strict recall0.17
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
91 1.0974691656403437 -1.32703 -23.9273 5 15 0 0.00 0.00 - no Open
95 1.1145258582921873 -1.62284 -32.1529 8 18 0 0.00 0.00 - no Open
102 1.5423835052535655 -1.48174 -29.6335 5 13 12 0.63 0.40 - no Current
117 3.0289936264421713 -1.06315 -21.0006 5 17 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 -29.634kcal/mol
Ligand efficiency (LE) -1.4111kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.036
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 300.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.21
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 15.16kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -45.23kcal/mol
Minimised FF energy -60.40kcal/mol

SASA & burial

✓ computed
SASA (unbound) 516.1Ų
Total solvent-accessible surface area of free ligand
BSA total 498.5Ų
Buried surface area upon binding
BSA apolar 383.7Ų
Hydrophobic contacts buried
BSA polar 114.8Ų
Polar contacts buried
Fraction buried 96.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1543.0Ų
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 909.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)