FAIRMol

KB_HAT_11

Pose ID 4854 Compound 2959 Pose 113

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 KB_HAT_11
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
10.5 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.68, Jaccard 0.62, H-bond role recall 0.40
Burial
92%
Hydrophobic fit
81%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.146 kcal/mol/HA) ✓ Good fit quality (FQ -10.94) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Moderate strain (10.5 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Internal clashes (7)
Score
-33.233
kcal/mol
LE
-1.146
kcal/mol/HA
Fit Quality
-10.94
FQ (Leeson)
HAC
29
heavy atoms
MW
388
Da
LogP
3.70
cLogP
Strain ΔE
10.5 kcal/mol
SASA buried
92%
Lipo contact
81% BSA apolar/total
SASA unbound
652 Ų
Apolar buried
485 Ų

Interaction summary

HB 7 HY 24 PI 3 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 rank0.076Score-33.233
Inter norm-1.209Intra norm0.063
Top1000noExcludedno
Contacts15H-bonds7
Artifact reasongeometry warning; 7 clashes; 2 protein contact clashes; 2 cofactor-context clashes
Residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 MET163 MET213 NAP301 PHE97 PRO210 TRP221 TYR174 VAL206 VAL211

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
Jaccard0.62RMSD-
HB strict2Strict recall0.33
HB same residue+role2HB role recall0.40
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
113 0.07649181255500594 -1.20877 -33.2334 7 15 13 0.68 0.40 - no Current
492 0.409235137707997 -1.12193 -31.058 7 15 13 0.68 0.40 - 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 -33.233kcal/mol
Ligand efficiency (LE) -1.1460kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.939
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 388.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.70
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 10.51kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 11.99kcal/mol
Minimised FF energy 1.49kcal/mol

SASA & burial

✓ computed
SASA (unbound) 651.8Ų
Total solvent-accessible surface area of free ligand
BSA total 599.5Ų
Buried surface area upon binding
BSA apolar 484.6Ų
Hydrophobic contacts buried
BSA polar 115.0Ų
Polar contacts buried
Fraction buried 92.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1664.7Ų
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 923.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)