FAIRMol

KB_HAT_118

Pose ID 4162 Compound 110 Pose 99

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 KB_HAT_118
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
11.0 kcal/mol
Protein clashes
3
Internal clashes
4
Native overlap
contact recall 0.79, Jaccard 0.75, H-bond role recall 0.40
Burial
98%
Hydrophobic fit
88%
Reason: no major geometry red flags detected
3 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.472 kcal/mol/HA) ✓ Good fit quality (FQ -13.20) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (88%) ✗ Moderate strain (11.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-35.336
kcal/mol
LE
-1.472
kcal/mol/HA
Fit Quality
-13.20
FQ (Leeson)
HAC
24
heavy atoms
MW
348
Da
LogP
1.11
cLogP
Strain ΔE
11.0 kcal/mol
SASA buried
98%
Lipo contact
88% BSA apolar/total
SASA unbound
550 Ų
Apolar buried
474 Ų

Interaction summary

HB 9 HY 24 PI 2 CLASH 4

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 rank1.836Score-35.336
Inter norm-1.335Intra norm-0.137
Top1000noExcludedno
Contacts16H-bonds9
Artifact reasongeometry warning; 11 clashes; 1 protein clash; 4 cofactor-context clashes
Residues
ARG14 ASP161 CYS168 LEU208 LEU209 LYS178 MET163 MET213 NAP301 PHE97 PRO210 SER207 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 overlap15Native recall0.79
Jaccard0.75RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
HB same residue3HB residue recall0.60

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
123 0.7990061726787894 -1.08501 -22.1541 4 17 0 0.00 0.00 - no Open
101 0.8447828117111033 -0.980685 -22.7934 4 17 0 0.00 0.00 - no Open
133 1.0187228480930377 -1.06423 -25.2784 6 19 0 0.00 0.00 - no Open
126 1.292903671876466 -1.35753 -22.4311 12 13 11 0.58 0.40 - no Open
99 1.8363658660520557 -1.33485 -35.3362 9 16 15 0.79 0.40 - no Current
100 3.079495473906154 -1.01212 -19.4856 4 18 0 0.00 0.00 - no Open
104 3.618412026689628 -0.89686 -11.2779 5 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 -35.336kcal/mol
Ligand efficiency (LE) -1.4723kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -13.195
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 347.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.11
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 10.99kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 128.35kcal/mol
Minimised FF energy 117.37kcal/mol

SASA & burial

✓ computed
SASA (unbound) 549.8Ų
Total solvent-accessible surface area of free ligand
BSA total 539.8Ų
Buried surface area upon binding
BSA apolar 474.2Ų
Hydrophobic contacts buried
BSA polar 65.6Ų
Polar contacts buried
Fraction buried 98.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 87.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1621.7Ų
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 914.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)