FMODB: The database of quantum mechanical data based on the FMO method
Last updated: 2025-10-17
All entries: 77277
Number of unique PDB entries: 32023
FMODB ID: 4N6QN
Calculation Name: 1L2Y-A-MD57-32700ps
Preferred Name:
Target Type:
Ligand Name:
Ligand 3-letter code:
Ligand of Interest (LOI):
Structure Source: PDB
PDB ID: 2OTU
Chain ID: A
UniProt ID: A2NN81
Base Structure: MD
Registration Date: 2019-08-13
Reference:
Apendix: None
Modeling method
| Optimization | BaseStructure_original |
|---|---|
| Restraint | BaseStructure_original |
| Protonation | BaseStructure_original |
| Complement | No |
| Water | No |
| Procedure | Manual calculation |
| Remarks |
FMO calculation
| FMO method | FMO2-MP2/6-31G(d) |
|---|---|
| Fragmentation | Auto |
| Number of fragment | 10 |
| LigandResidueName | |
| LigandFragmentNumber | 0 |
| LigandCharge | |
| Software | MIZUHO/ABINIT-MP 3.0 |
Total energy (hartree)
| FMO2-HF: Electronic energy | -23167.210975 |
|---|---|
| FMO2-HF: Nuclear repulsion | 18565.026114 |
| FMO2-HF: Total energy | -4602.184862 |
| FMO2-MP2: Total energy | -4615.603485 |
3D Structure
Ligand structure
Ligand Interaction
Ligand binding energy
| IFIE [kcal/mol] | PIEDA [kcal/mol] | Charge transfer value [e] | |||
|---|---|---|---|---|---|
| IFIE SUMIFIE SUM at MP2 level. | ESElectro static interaction energy. | EXExchange-repulsion energy. | CT+mixCharge transfer and mixing terms energy. | DI(MP2)Dispersion energy. | q(I=>J)Charge transfer value from I to J fragments. |
| N/A | N/A | N/A | N/A | N/A | N/A |
Interactive mode: IFIE and PIEDA for fragment #1(:1:GLN )
Summations of interaction energy for
fragment #1(:1:GLN )
| IFIE [kcal/mol] | PIEDA [kcal/mol] | Charge transfer value [e] | |||
|---|---|---|---|---|---|
| IFIE SUMIFIE SUM at MP2 level. | ESElectro static interaction energy. | EXExchange-repulsion energy. | CT+mixCharge transfer and mixing terms energy. | DI(MP2)Dispersion energy. | q(I=>J)Charge transfer value from I to J fragments. |
| -34.505 | -30.996 | 0.833 | -1.856 | -2.483 | -0.019 |
Interaction energy analysis for fragmet #1(:1:GLN )
| frag_NumFragment number. | ChainChain species. | Res #Residue number. | RES3-letter code of amino acid residue, ligand and solvent molecule. | FCHARGEFormal charge [e]. | q_MullikenFragment charge evaluated by Mulliken charge [e]. | q_NPAFragment charge evaluated by natural population analysis(NPA) charge [e]. | DISTDistance from Ligand [Å]. | TotalIFIE at MP2 level [kcal/mol]. | ESElectro static interaction energy by PIEDA [kcal/mol]. | EXExchange-repulsion energy by PIEDA [kcal/mol]. | CT+mixCharge transfer and mixing terms energy by PIEDA [kcal/mol]. | DI(MP2)Dispersion energy by PIEDA [kcal/mol]. | q(I=>J)Charge transfer value from I to J fragmens [e]. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 3 | GLN | 0 | 0.069 | 0.011 | 2.562 | -8.095 | -4.880 | 0.833 | -1.789 | -2.258 | -0.019 | |
| 4 | 4 | GLN | 0 | 0.034 | -0.001 | 3.980 | -3.912 | -3.618 | 0.000 | -0.067 | -0.225 | 0.000 | |
| 5 | 5 | GLN | 0 | -0.003 | 0.005 | 6.543 | 0.941 | 0.941 | 0.000 | 0.000 | 0.000 | 0.000 | |
| 6 | 6 | GLN | 0 | 0.027 | 0.000 | 10.284 | -1.485 | -1.485 | 0.000 | 0.000 | 0.000 | 0.000 | |
| 7 | 7 | GLN | 0 | -0.020 | 0.019 | 6.630 | 1.912 | 1.912 | 0.000 | 0.000 | 0.000 | 0.000 | |
| 8 | 8 | GLN | 0 | -0.026 | -0.008 | 9.412 | 0.679 | 0.679 | 0.000 | 0.000 | 0.000 | 0.000 | |
| 9 | 9 | GLN | 0 | -0.016 | -0.012 | 8.946 | -3.233 | -3.233 | 0.000 | 0.000 | 0.000 | 0.000 | |
| 10 | 10 | GLN | -1 | -0.963 | -0.974 | 7.471 | -21.312 | -21.312 | 0.000 | 0.000 | 0.000 | 0.000 |