FAIRMol

ulfkktlib_2989

Pose ID 7602 Compound 1147 Pose 150

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T12
T. brucei R5P T. brucei
Ligand ulfkktlib_2989
PDB6FXS

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
24.4 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.69, Jaccard 0.52, H-bond role recall 0.30
Burial
92%
Hydrophobic fit
63%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.502 kcal/mol/HA) ✓ Good fit quality (FQ -12.04) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (63%) ✗ High strain energy (24.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-27.038
kcal/mol
LE
-1.502
kcal/mol/HA
Fit Quality
-12.04
FQ (Leeson)
HAC
18
heavy atoms
MW
239
Da
LogP
1.65
cLogP
Strain ΔE
24.4 kcal/mol
SASA buried
92%
Lipo contact
63% BSA apolar/total
SASA unbound
446 Ų
Apolar buried
259 Ų

Interaction summary

HB 10 HY 11 PI 3 CLASH 5
Final rank2.443Score-27.038
Inter norm-1.571Intra norm0.069
Top1000noExcludedno
Contacts16H-bonds10
Artifact reasongeometry warning; 10 clashes; 1 protein clash; moderate strain Δ 24.4
Residues
ARG140 ARG144 HIS105 HIS141 MET101 TYR97 ARG116 ASP13 ASP48 CYS72 GLY73 HIS14 ILE15 SER74 TYR49 VAL47

Protein summary

302 residues
Protein targetT12Atoms4598
Residues302Chains2
Residue summaryARG:576; ILE:456; VAL:448; GLU:360; ALA:340; LEU:304; TYR:252; HIS:204; PRO:196; THR:196; GLY:182; LYS:176; ASP:168; PHE:160; MET:153; SER:121

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:CSD72

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6FXSContacts16
PoseOpen native poseHB0
IFP residues
ARG140 ARG144 ASN106 HIS105 HIS141 ARG46 ASP13 CYS72 GLY73 GLY75 GLY77 HIS14 ILE15 ILE76 SER74 TYR49
Current overlap11Native recall0.69
Jaccard0.52RMSD-
HB strict4Strict recall0.33
HB same residue+role3HB role recall0.30
HB same residue3HB residue recall0.30

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
203 0.02298586351220657 -1.67971 -28.8514 15 11 0 0.00 0.00 - no Open
251 1.5600773526096692 -1.52238 -24.7668 9 10 0 0.00 0.00 - no Open
188 1.7393808742889532 -1.44821 -22.7179 10 11 0 0.00 0.00 - no Open
187 1.904926657786237 -1.44932 -22.6819 10 11 0 0.00 0.00 - no Open
250 2.4269731504899124 -1.49993 -21.6071 8 11 0 0.00 0.00 - no Open
150 2.4426115785973534 -1.57076 -27.0378 10 16 11 0.69 0.30 - no Current
216 2.8029469416296977 -1.24059 -22.5753 4 10 0 0.00 0.00 - no Open
218 2.8355536290807954 -1.23817 -22.5435 4 10 0 0.00 0.00 - no Open
233 2.9732723546361126 -1.37125 -23.1711 13 14 0 0.00 0.00 - no Open
235 3.0500479868790227 -1.36184 -23.2406 13 13 0 0.00 0.00 - no Open
199 3.16779643854898 -1.63926 -24.4936 6 12 0 0.00 0.00 - no Open
196 3.2361515800595497 -1.64127 -28.1494 8 15 0 0.00 0.00 - no Open
166 3.6401952695033035 -1.42704 -24.205 14 13 0 0.00 0.00 - no Open
164 3.729628072049191 -1.43686 -24.3204 14 13 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 -27.038kcal/mol
Ligand efficiency (LE) -1.5021kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.038
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 18HA

Physicochemical properties

Molecular weight 239.2Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.65
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 24.43kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 62.50kcal/mol
Minimised FF energy 38.07kcal/mol

SASA & burial

✓ computed
SASA (unbound) 446.1Ų
Total solvent-accessible surface area of free ligand
BSA total 408.2Ų
Buried surface area upon binding
BSA apolar 258.6Ų
Hydrophobic contacts buried
BSA polar 149.5Ų
Polar contacts buried
Fraction buried 91.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 63.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1983.9Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 759.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)