FAIRMol

Z57457889

Pose ID 5197 Compound 1267 Pose 456

DB SELECTIONDocking 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 Z57457889
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
19.1 kcal/mol
Protein clashes
1
Internal clashes
3
Native overlap
contact recall 0.63, Jaccard 0.55, H-bond role recall 0.40
Burial
88%
Hydrophobic fit
85%
Reason: no major geometry red flags detected
1 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.181 kcal/mol/HA) ✓ Good fit quality (FQ -11.51) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Moderate strain (19.1 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (15)
Score
-36.627
kcal/mol
LE
-1.181
kcal/mol/HA
Fit Quality
-11.51
FQ (Leeson)
HAC
31
heavy atoms
MW
406
Da
LogP
4.85
cLogP
Strain ΔE
19.1 kcal/mol
SASA buried
88%
Lipo contact
85% BSA apolar/total
SASA unbound
679 Ų
Apolar buried
509 Ų

Interaction summary

HB 9 HY 19 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 rank0.829Score-36.627
Inter norm-1.134Intra norm-0.047
Top1000noExcludedno
Contacts15H-bonds9
Artifact reasongeometry warning; 15 clashes; 2 protein contact clashes; 6 cofactor-context clashes
Residues
ALA96 ARG14 ASP161 CYS168 LEU208 LEU209 LYS13 MET163 NAP301 PHE97 PRO210 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 overlap12Native recall0.63
Jaccard0.55RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
429 0.3763685020700806 -1.11733 -30.2356 4 13 12 0.63 0.40 - no Open
456 0.8291394658452832 -1.13404 -36.6273 9 15 12 0.63 0.40 - no Current
460 1.4845961023568308 -0.936064 -28.1676 4 18 0 0.00 0.00 - no Open
479 2.2465523555658673 -1.07372 -31.8463 6 14 0 0.00 0.00 - no Open
478 2.6811516906246866 -0.848983 -23.9664 4 16 0 0.00 0.00 - no Open
431 2.7950112958399265 -0.797896 -16.0129 3 18 0 0.00 0.00 - no Open
531 2.9396166091762534 -0.774253 -20.0016 6 13 0 0.00 0.00 - no Open
440 5.900848019733364 -0.907256 -20.21 8 14 0 0.00 0.00 - no Open
457 7.7386159492059985 -1.02476 -29.1943 16 22 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 -36.627kcal/mol
Ligand efficiency (LE) -1.1815kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.511
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 406.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.85
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 19.06kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 113.87kcal/mol
Minimised FF energy 94.81kcal/mol

SASA & burial

✓ computed
SASA (unbound) 678.9Ų
Total solvent-accessible surface area of free ligand
BSA total 600.9Ų
Buried surface area upon binding
BSA apolar 508.6Ų
Hydrophobic contacts buried
BSA polar 92.2Ų
Polar contacts buried
Fraction buried 88.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1675.5Ų
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 957.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)