FAIRMol

Z1521554012

Pose ID 1918 Compound 1451 Pose 563

DB fairmolDocking pose analysis is being read from this database.
Compound detail Protein structures Back to compounds
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T03
L. major DHFR L. major
Ligand Z1521554012

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 mixed SASA done
Strain ΔE
31.6 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.50, Jaccard 0.42, H-bond role recall 0.00
Burial
88%
Hydrophobic fit
62%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.862 kcal/mol/HA) ✓ Good fit quality (FQ -8.14) ✓ Good H-bonds (3 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (62%) ✗ Very high strain energy (31.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-24.131
kcal/mol
LE
-0.862
kcal/mol/HA
Fit Quality
-8.14
FQ (Leeson)
HAC
28
heavy atoms
MW
398
Da
LogP
3.70
cLogP
Final rank
4.5210
rank score
Inter norm
-0.951
normalised
Contacts
14
H-bonds 3
Strain ΔE
31.6 kcal/mol
SASA buried
88%
Lipo contact
62% BSA apolar/total
SASA unbound
609 Ų
Apolar buried
334 Ų

Interaction summary

HBA 3 HY 7 PI 1 CLASH 3

HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

PI · π–π interactions
Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name3CL9Contacts20
PoseOpen native poseHB0
IFP residues
ALA32 ARG97 ASP52 ILE45 LEU94 LYS57 MET53 NDP301 PHE56 PHE91 PRO88 SER86 THR180 THR54 THR83 TYR162 VAL156 VAL30 VAL31 VAL87
Current overlap10Native recall0.50
Jaccard0.42RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

225 residues
Protein targetT03Atoms3428
Residues225Chains2
Residue summaryLEU:380; ARG:360; VAL:272; LYS:264; ALA:240; GLU:240; PRO:224; PHE:180; THR:154; ILE:152; SER:132; TYR:126; GLN:119; ASN:98; GLY:84; NDP:74

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:NDP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
541 1.1756627018338413 -1.07597 -27.1024 8 11 0 0.00 0.00 - no Open
549 2.1077041195670354 -0.929171 -24.9126 3 15 1 0.05 0.00 - no Open
577 2.689294324477287 -0.751854 -19.032 5 13 0 0.00 0.00 - no Open
576 3.045521506689257 -0.880563 -22.2631 5 13 0 0.00 0.00 - no Open
571 3.7610343430078648 -1.06427 -28.8526 14 18 0 0.00 0.00 - no Open
572 4.364803537312127 -0.889484 -23.7896 6 14 0 0.00 0.00 - no Open
563 4.520953703473275 -0.951393 -24.1315 3 14 10 0.50 0.00 - no Current
544 5.1376893518949105 -0.987943 -22.5162 16 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 -24.131kcal/mol
Ligand efficiency (LE) -0.8618kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.136
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties
Molecular weight 398.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.70
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)
Strain energy (ΔE) 31.61kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 1.92kcal/mol
Minimised FF energy -29.68kcal/mol

SASA & burial

✓ computed
SASA (unbound) 609.0Ų
Total solvent-accessible surface area of free ligand
BSA total 538.7Ų
Buried surface area upon binding
BSA apolar 334.4Ų
Hydrophobic contacts buried
BSA polar 204.3Ų
Polar contacts buried
Fraction buried 88.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 62.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1369.0Ų
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 1820.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 828.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)