FMODB: The database of quantum mechanical data based on the FMO method
Last updated: 2025-10-14
All entries: 75777
Number of unique PDB entries: 32023
FMODB ID: N6G1Q
Calculation Name: 1EP3-B-Xray549
Preferred Name:
Target Type:
Ligand Name: flavin-adenine dinucleotide | flavin mononucleotide | fe2/s2 (inorganic) cluster
Ligand 3-letter code: FAD | FMN | FES
Ligand of Interest (LOI):
PDB ID: 1EP3
Chain ID: B
UniProt ID: P54322
Base Structure: X-ray
Registration Date: 2025-10-11
Reference: Sci Data 11, 1164 (2024).
DOI: https://doi.org/10.1038/s41597-024-03999-2
Apendix: None
Modeling method
| Optimization | MOE:Amber10:EHT |
|---|---|
| Restraint | OptH |
| Protonation | MOE:Protonate 3D |
| Complement | ac.sh, 23 2024 Oct |
| Water | No |
| Procedure | Manual calculation |
FMO calculation
| FMO method | FMO2-MP2/6-31G(d) |
|---|---|
| Fragmentation | Auto |
| Number of fragment | 261 |
| LigandResidueName | |
| LigandFragmentNumber | 0 |
| LigandCharge | |
| Software | ABINIT-MP - Open Ver. 1 Rev. 23 (BINDS Ver. 1) / 20230922 |
Total energy (hartree)
| FMO2-HF: Electronic energy | -3399279.467717 |
|---|---|
| FMO2-HF: Nuclear repulsion | 3296221.584926 |
| FMO2-HF: Total energy | -103057.88279 |
| FMO2-MP2: Total energy | -103347.518637 |
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(B:2:SER)
Summations of interaction energy for
fragment #1(B:2:SER)
| 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. |
Interaction energy analysis for fragmet #1(B:2:SER)
| 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]. |
|---|