FAIRMol

Z49633576

Pose ID 4659 Compound 2901 Pose 596

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 Z49633576
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
96.1 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.74, Jaccard 0.58, H-bond role recall 0.40
Burial
96%
Hydrophobic fit
64%
Reason: strain 96.1 kcal/mol
strain ΔE 96.1 kcal/mol 3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.892 kcal/mol/HA) ✓ Good fit quality (FQ -8.60) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (64%) ✗ Extreme strain energy (96.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-26.753
kcal/mol
LE
-0.892
kcal/mol/HA
Fit Quality
-8.60
FQ (Leeson)
HAC
30
heavy atoms
MW
440
Da
LogP
-0.85
cLogP
Strain ΔE
96.1 kcal/mol
SASA buried
96%
Lipo contact
64% BSA apolar/total
SASA unbound
671 Ų
Apolar buried
412 Ų

Interaction summary

HB 10 HY 24 PI 3 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 rank2.325Score-26.753
Inter norm-1.137Intra norm0.246
Top1000noExcludedno
Contacts19H-bonds10
Artifact reasongeometry warning; 11 clashes; 1 protein clash; high strain Δ 96.1
Residues
ARG14 ASN175 ASP161 CYS168 GLN166 LEU208 LEU209 MET163 MET213 NAP301 PHE171 PHE97 PRO167 PRO210 SER95 TRP221 TYR174 VAL164 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 overlap14Native recall0.74
Jaccard0.58RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
596 2.3252128428059002 -1.13727 -26.7529 10 19 14 0.74 0.40 - no Current
630 3.1472053235268254 -1.23245 -33.5359 14 23 0 0.00 0.00 - no Open
611 3.7738766762258784 -0.734441 -18.0833 7 7 0 0.00 0.00 - no Open
621 4.08861341711193 -0.995124 -23.7831 11 17 0 0.00 0.00 - no Open
609 4.296899294431502 -1.03684 -25.0444 11 15 0 0.00 0.00 - no Open
625 4.996400449539082 -0.832977 -22.274 10 10 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 -26.753kcal/mol
Ligand efficiency (LE) -0.8918kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.602
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 440.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.85
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 96.11kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 116.22kcal/mol
Minimised FF energy 20.11kcal/mol

SASA & burial

✓ computed
SASA (unbound) 671.4Ų
Total solvent-accessible surface area of free ligand
BSA total 641.9Ų
Buried surface area upon binding
BSA apolar 411.6Ų
Hydrophobic contacts buried
BSA polar 230.3Ų
Polar contacts buried
Fraction buried 95.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 64.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1573.6Ų
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 911.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)