FAIRMol

Z49724748

Pose ID 4598 Compound 42 Pose 535

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 Z49724748
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
42.5 kcal/mol
Protein clashes
4
Internal clashes
6
Native overlap
contact recall 0.84, Jaccard 0.84, H-bond role recall 0.60
Burial
96%
Hydrophobic fit
74%
Reason: 6 internal clashes, strain 42.5 kcal/mol
strain ΔE 42.5 kcal/mol 4 protein-contact clashes 6 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.551 kcal/mol/HA) ✓ Good fit quality (FQ -14.10) ✓ Strong H-bond network (15 bonds) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (74%) ✗ Extreme strain energy (42.5 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (6) ✗ Internal clashes (9)
Score
-38.770
kcal/mol
LE
-1.551
kcal/mol/HA
Fit Quality
-14.10
FQ (Leeson)
HAC
25
heavy atoms
MW
425
Da
LogP
4.27
cLogP
Strain ΔE
42.5 kcal/mol
SASA buried
96%
Lipo contact
74% BSA apolar/total
SASA unbound
588 Ų
Apolar buried
416 Ų

Interaction summary

HB 15 HY 24 PI 3 CLASH 6
Final rank0.555Score-38.770
Inter norm-1.574Intra norm0.023
Top1000noExcludedno
Contacts16H-bonds15
Artifact reasongeometry warning; 9 clashes; 6 protein contact clashes; 1 severe cofactor-context clash; high strain Δ 42.5
Residues
ARG14 ASP161 CYS168 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 SER207 SER95 TRP221 TYR174 VAL206

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

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 overlap16Native recall0.84
Jaccard0.84RMSD-
HB strict4Strict recall0.67
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
535 0.5554742205459879 -1.57398 -38.7698 15 16 16 0.84 0.60 - no Current
542 0.6301361565626356 -1.41362 -35.0467 13 20 15 0.79 0.60 - no Open
576 0.6491852433386276 -1.04323 -28.2743 6 16 0 0.00 0.00 - no Open
560 1.7385138815859185 -1.20275 -30.8924 10 14 0 0.00 0.00 - no Open
573 1.9408338434310477 -0.934882 -24.3666 8 14 0 0.00 0.00 - no Open
546 2.12496165439863 -1.12048 -28.9632 5 14 0 0.00 0.00 - no Open
573 2.1723358672917747 -0.917446 -22.622 4 14 0 0.00 0.00 - no Open
538 2.531466557515543 -1.11611 -27.7407 6 11 0 0.00 0.00 - no Open
551 3.031535954686285 -1.17336 -28.1011 5 18 0 0.00 0.00 - no Open
560 3.1524960599292062 -0.864105 -19.5566 5 10 0 0.00 0.00 - no Open
541 3.5786835219571276 -1.12988 -25.5305 10 18 0 0.00 0.00 - no Open
558 4.774003563882817 -1.42174 -34.3602 11 23 0 0.00 0.00 - no Open
567 5.672682983004134 -1.08344 -23.3257 13 17 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 -38.770kcal/mol
Ligand efficiency (LE) -1.5508kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -14.098
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 425.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.27
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 42.45kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 118.72kcal/mol
Minimised FF energy 76.27kcal/mol

SASA & burial

✓ computed
SASA (unbound) 588.1Ų
Total solvent-accessible surface area of free ligand
BSA total 562.0Ų
Buried surface area upon binding
BSA apolar 415.6Ų
Hydrophobic contacts buried
BSA polar 146.3Ų
Polar contacts buried
Fraction buried 95.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1578.5Ų
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 912.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)