FAIRMol

Z19651549

Pose ID 4595 Compound 1570 Pose 532

DB SELECTIONDocking 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 Z19651549
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
13.4 kcal/mol
Protein clashes
1
Internal clashes
2
Native overlap
contact recall 0.68, Jaccard 0.68, H-bond role recall 0.40
Burial
93%
Hydrophobic fit
69%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.367 kcal/mol/HA) ✓ Good fit quality (FQ -11.66) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (93% SASA buried) ✓ Lipophilic contacts well-matched (69%) ✗ Moderate strain (13.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-28.696
kcal/mol
LE
-1.367
kcal/mol/HA
Fit Quality
-11.66
FQ (Leeson)
HAC
21
heavy atoms
MW
301
Da
LogP
3.21
cLogP
Strain ΔE
13.4 kcal/mol
SASA buried
93%
Lipo contact
69% BSA apolar/total
SASA unbound
515 Ų
Apolar buried
331 Ų

Interaction summary

HB 8 HY 24 PI 4 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 rank1.005Score-28.696
Inter norm-1.507Intra norm0.140
Top1000noExcludedno
Contacts13H-bonds8
Artifact reasongeometry warning; 7 clashes; 1 protein clash; 2 cofactor-context clashes
Residues
ARG14 CYS168 GLY205 LEU208 LEU209 MET213 NAP301 PHE171 PHE97 PRO210 SER207 TRP221 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 overlap13Native recall0.68
Jaccard0.68RMSD-
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
551 -0.10966209886901078 -1.29964 -25.3355 2 13 0 0.00 0.00 - no Open
532 1.0046581056658084 -1.50673 -28.6964 8 13 13 0.68 0.40 - no Current
558 1.8507984583927155 -0.895968 -16.1192 6 7 0 0.00 0.00 - no Open
548 2.3499413020302247 -1.40164 -21.5647 7 21 0 0.00 0.00 - no Open
536 2.4750002428206046 -1.35939 -27.4286 11 16 0 0.00 0.00 - no Open
542 2.63527126834114 -1.20429 -22.2029 6 11 0 0.00 0.00 - no Open
545 2.800134034659489 -1.54392 -31.1493 11 17 0 0.00 0.00 - no Open
541 3.544151329633376 -1.50159 -24.6005 12 18 0 0.00 0.00 - no Open
539 4.324614488326156 -1.4057 -25.737 10 16 0 0.00 0.00 - no Open
565 4.84275437333706 -1.34595 -23.6881 11 16 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 -28.696kcal/mol
Ligand efficiency (LE) -1.3665kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.656
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 301.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.21
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 13.41kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 43.17kcal/mol
Minimised FF energy 29.76kcal/mol

SASA & burial

✓ computed
SASA (unbound) 514.7Ų
Total solvent-accessible surface area of free ligand
BSA total 478.9Ų
Buried surface area upon binding
BSA apolar 330.8Ų
Hydrophobic contacts buried
BSA polar 148.1Ų
Polar contacts buried
Fraction buried 93.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 69.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1497.5Ų
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 913.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)