FMODB

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

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FMODB ID: LR539

Calculation Name: 2FSQ-A-Xray549

Preferred Name:

Target Type:

Ligand Name: acetic acid

Ligand 3-letter code: ACY

Ligand of Interest (LOI):

Structure Source: PDB

PDB ID: 2FSQ

Chain ID: A

ChEMBL ID:

UniProt ID: A9CKP4

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


IFIE MAP

IFIE Diagram


Modeling method
Optimization MOE:Amber10:EHT
Restraint OptH
Protonation MOE:Protonate 3D
Complement ac.sh, 23 2024 Oct
Water No
Procedure Manual calculation
Remarks
FMO calculation
FMO method FMO2-MP2/6-31G(d)
Fragmentation Auto
Number of fragment 232
LigandResidueName
LigandFragmentNumber 0
LigandCharge
Software ABINIT-MP - Open Ver. 1 Rev. 23 (BINDS Ver. 1) / 20230922
Total energy (hartree)
FMO2-HF: Electronic energy -3005207.306219
FMO2-HF: Nuclear repulsion 2911114.757611
FMO2-HF: Total energy -94092.548608
FMO2-MP2: Total energy -94364.348881


3D Structure Molmil
Snapshot
 
Ligand structure

ligand structure
Ligand Interaction
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/AN/AN/AN/AN/AN/A


Interactive mode: IFIE and PIEDA for fragment #1(A:6:VAL)


Summations of interaction energy for fragment #1(A:6:VAL)
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.
-190.602-179.31410.129-6.878-14.542-0.065
Interaction energy analysis for fragmet #1(A:6:VAL)
Snapshot

IFIE Diagram

Base fragment(s) of PIEDA/IFIE
Single fragment Multi fragments
Fragment list
Charge [e] FCHARGE : 1 / q_Mulliken : 0.837 / q_NPA : 0.918
Distance from base fragment(s) [Å]
Dist
Interaction energy by IFIE and PIEDA
[kcal/mol]
| Total | > | ES | > | EX | >
| CT+mix | > | DI(MP2) | >
Fragment charge [e]
FCHARGE q_Mulliken
q_NPA q(I=>J)
Residue
Res #    RES   
Sort
Graph Options
X Axis Label
Y Axis Max Y Axis Min
Display   
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].
3A8LYS10.9610.9502.56430.60733.1680.894-1.416-2.039-0.012
4A9ASP-1-0.865-0.9195.276-27.768-27.604-0.001-0.009-0.1540.000
5A10LEU00.0270.0112.2120.2980.9001.949-0.529-2.022-0.002
6A11ASP-1-0.919-0.9782.388-55.625-52.1971.986-2.213-3.201-0.025
7A12TYR0-0.0120.0173.4095.9275.7310.0850.264-0.1540.000
186A191GLU-1-0.902-0.9644.325-33.477-33.328-0.001-0.021-0.1270.000
188A193LEU00.0380.0222.305-2.545-2.2403.047-0.894-2.458-0.004
189A194PRO0-0.065-0.0472.762-10.482-8.3291.448-1.040-2.561-0.011
190A195ARG10.7700.8453.32927.76927.5700.0310.266-0.0990.000
192A197GLN0-0.024-0.0172.516-10.574-8.2900.692-1.268-1.709-0.011
193A198ALA00.0380.0214.6344.0904.127-0.001-0.018-0.0180.000
8A13ILE0-0.024-0.0206.3953.0103.0100.0000.0000.0000.000
9A14SER00.0380.0215.1483.0693.0690.0000.0000.0000.000
10A15THR0-0.018-0.0366.9761.6201.6200.0000.0000.0000.000
11A16ALA0-0.017-0.0088.5731.5201.5200.0000.0000.0000.000
12A17ASN0-0.076-0.0338.3101.5841.5840.0000.0000.0000.000
13A18HIS10.8360.92610.16123.07823.0780.0000.0000.0000.000
14A19ASP-1-0.850-0.91513.750-14.755-14.7550.0000.0000.0000.000
15A20GLN0-0.075-0.02216.8471.0301.0300.0000.0000.0000.000
16A21PRO00.0360.01916.383-0.984-0.9840.0000.0000.0000.000
17A22PRO00.0320.01314.6630.2000.2000.0000.0000.0000.000
18A23ARG10.9460.96917.06913.51113.5110.0000.0000.0000.000
19A24HIS00.0190.01518.7680.7770.7770.0000.0000.0000.000
20A25LEU00.0160.02020.1530.4670.4670.0000.0000.0000.000
21A26GLY0-0.051-0.02222.1010.2550.2550.0000.0000.0000.000
22A27SER0-0.059-0.02824.9490.5280.5280.0000.0000.0000.000
23A28ARG10.8070.86221.96112.43212.4320.0000.0000.0000.000
24A29PHE00.005-0.00418.663-0.012-0.0120.0000.0000.0000.000
25A30SER0-0.004-0.02524.223-0.093-0.0930.0000.0000.0000.000
26A31ALA00.007-0.01522.079-0.501-0.5010.0000.0000.0000.000
27A32GLU-1-0.888-0.92721.747-11.669-11.6690.0000.0000.0000.000
28A33GLY0-0.009-0.00221.416-0.187-0.1870.0000.0000.0000.000
29A34GLU-1-0.930-0.95222.030-11.067-11.0670.0000.0000.0000.000
30A35PHE0-0.048-0.03221.371-0.088-0.0880.0000.0000.0000.000
31A36LEU0-0.041-0.00926.2390.4510.4510.0000.0000.0000.000
32A37PRO0-0.076-0.05228.855-0.058-0.0580.0000.0000.0000.000
33A38GLU-1-0.736-0.80526.237-11.310-11.3100.0000.0000.0000.000
34A39PRO0-0.011-0.01330.147-0.159-0.1590.0000.0000.0000.000
35A40GLY00.0400.00731.645-0.054-0.0540.0000.0000.0000.000
36A41ASN0-0.020-0.00732.593-0.018-0.0180.0000.0000.0000.000
37A42THR0-0.038-0.02228.057-0.305-0.3050.0000.0000.0000.000
38A43VAL00.0510.04130.0980.3040.3040.0000.0000.0000.000
39A44VAL0-0.043-0.02827.347-0.504-0.5040.0000.0000.0000.000
40A45CYS00.0350.04327.6500.3520.3520.0000.0000.0000.000
41A46HIS0-0.025-0.03627.307-0.656-0.6560.0000.0000.0000.000
42A47LEU00.0400.02123.8480.0330.0330.0000.0000.0000.000
43A48VAL0-0.016-0.00428.1060.4060.4060.0000.0000.0000.000
44A49GLU-1-0.914-0.94330.220-9.507-9.5070.0000.0000.0000.000
45A50GLY0-0.010-0.01030.7230.2890.2890.0000.0000.0000.000
46A51SER0-0.042-0.02229.086-0.076-0.0760.0000.0000.0000.000
47A52GLN00.011-0.00928.006-0.419-0.4190.0000.0000.0000.000
48A53THR00.0370.02924.318-0.294-0.2940.0000.0000.0000.000
49A54GLU-1-0.834-0.90924.229-11.265-11.2650.0000.0000.0000.000
50A55SER0-0.010-0.00924.515-0.331-0.3310.0000.0000.0000.000
51A56ALA00.0010.01821.784-0.361-0.3610.0000.0000.0000.000
52A57ILE00.0290.01519.820-0.852-0.8520.0000.0000.0000.000
53A58VAL0-0.011-0.01119.921-0.641-0.6410.0000.0000.0000.000
54A59SER0-0.045-0.03421.041-0.162-0.1620.0000.0000.0000.000
55A60THR0-0.018-0.01515.267-0.687-0.6870.0000.0000.0000.000
56A61ARG10.8740.92816.20812.65412.6540.0000.0000.0000.000
57A62GLN0-0.044-0.02517.7850.2360.2360.0000.0000.0000.000
58A63ARG10.8840.94314.03719.88719.8870.0000.0000.0000.000
59A64PHE0-0.022-0.03512.488-1.329-1.3290.0000.0000.0000.000
60A65LEU0-0.015-0.01314.289-0.291-0.2910.0000.0000.0000.000
61A66ASP-1-0.882-0.92616.300-15.642-15.6420.0000.0000.0000.000
62A67MET0-0.0510.0059.834-0.270-0.2700.0000.0000.0000.000
63A68PRO00.0230.01012.9750.6480.6480.0000.0000.0000.000
64A69GLU-1-0.670-0.79410.436-23.308-23.3080.0000.0000.0000.000
65A70ALA0-0.0040.00613.2310.1030.1030.0000.0000.0000.000
66A71SER0-0.062-0.04815.4370.7100.7100.0000.0000.0000.000
67A72GLN0-0.066-0.03112.7690.0180.0180.0000.0000.0000.000
68A73LEU0-0.056-0.02012.112-0.636-0.6360.0000.0000.0000.000
69A74ALA00.0690.04216.1460.6750.6750.0000.0000.0000.000
70A75PHE0-0.021-0.02915.314-0.265-0.2650.0000.0000.0000.000
71A76THR0-0.0010.01419.8400.5350.5350.0000.0000.0000.000
72A77PRO00.0350.02022.456-0.221-0.2210.0000.0000.0000.000
73A78VAL00.0280.02424.264-0.146-0.1460.0000.0000.0000.000
74A79SER00.0480.02325.806-0.212-0.2120.0000.0000.0000.000
75A80SER0-0.031-0.01725.3300.1220.1220.0000.0000.0000.000
76A81LEU0-0.0290.00421.555-0.230-0.2300.0000.0000.0000.000
77A82HIS10.8890.92423.87112.17412.1740.0000.0000.0000.000
78A83MET00.0160.04122.287-0.652-0.6520.0000.0000.0000.000
79A84THR0-0.033-0.02123.2610.6830.6830.0000.0000.0000.000
80A85VAL00.0000.01424.532-0.400-0.4000.0000.0000.0000.000
81A86PHE00.0210.00527.103-0.208-0.2080.0000.0000.0000.000
82A87GLN00.0300.02822.9190.3130.3130.0000.0000.0000.000
83A88GLY00.0710.04428.2420.1920.1920.0000.0000.0000.000
84A89VAL0-0.028-0.00230.442-0.233-0.2330.0000.0000.0000.000
85A90ILE0-0.021-0.02827.278-0.092-0.0920.0000.0000.0000.000
86A91GLU-1-0.813-0.87731.297-8.293-8.2930.0000.0000.0000.000
87A92SER0-0.060-0.05927.5500.1780.1780.0000.0000.0000.000
88A93ARG10.8330.92224.23811.03111.0310.0000.0000.0000.000
89A94ARG10.7970.86730.3138.1868.1860.0000.0000.0000.000
90A95ALA0-0.025-0.02031.4270.1830.1830.0000.0000.0000.000
91A96LEU00.0110.02232.366-0.148-0.1480.0000.0000.0000.000
92A97PRO0-0.058-0.03229.696-0.115-0.1150.0000.0000.0000.000
93A98TYR0-0.014-0.03125.819-0.264-0.2640.0000.0000.0000.000
94A99TRP00.0490.01830.731-0.110-0.1100.0000.0000.0000.000
95A100PRO00.0010.02734.3770.0230.0230.0000.0000.0000.000
96A101GLN00.006-0.01237.6690.0580.0580.0000.0000.0000.000
97A102THR0-0.009-0.01139.7530.1100.1100.0000.0000.0000.000
98A103LEU0-0.029-0.00340.1490.1920.1920.0000.0000.0000.000
99A104PRO00.0190.02240.777-0.157-0.1570.0000.0000.0000.000
100A105LEU00.0170.02336.598-0.063-0.0630.0000.0000.0000.000
101A106ASP-1-0.882-0.93538.174-7.288-7.2880.0000.0000.0000.000
102A107THR0-0.046-0.03440.6740.1420.1420.0000.0000.0000.000
103A108PRO00.007-0.00139.742-0.220-0.2200.0000.0000.0000.000
104A109ILE00.0790.03834.7890.0600.0600.0000.0000.0000.000
105A110ASP-1-0.888-0.92838.260-7.583-7.5830.0000.0000.0000.000
106A111ALA00.0290.01140.9080.0500.0500.0000.0000.0000.000
107A112VAL0-0.030-0.01437.4730.0770.0770.0000.0000.0000.000
108A113THR0-0.011-0.00638.030-0.161-0.1610.0000.0000.0000.000
109A114ASP-1-0.928-0.95639.570-6.954-6.9540.0000.0000.0000.000
110A115TYR0-0.036-0.01940.5830.1430.1430.0000.0000.0000.000
111A116TYR0-0.017-0.03235.961-0.020-0.0200.0000.0000.0000.000
112A117ARG10.9410.97940.4247.2097.2090.0000.0000.0000.000
113A118ASP-1-0.942-0.96142.297-6.509-6.5090.0000.0000.0000.000
114A119ARG10.8840.94640.7357.3727.3720.0000.0000.0000.000
115A120LEU0-0.025-0.01837.2780.0060.0060.0000.0000.0000.000
116A121SER0-0.040-0.02341.420-0.016-0.0160.0000.0000.0000.000
117A122THR0-0.099-0.05044.2250.1360.1360.0000.0000.0000.000
118A123PHE0-0.010-0.00235.984-0.013-0.0130.0000.0000.0000.000
119A124PRO0-0.032-0.00540.0600.1020.1020.0000.0000.0000.000
120A125THR00.0400.01040.115-0.122-0.1220.0000.0000.0000.000
121A126LEU0-0.030-0.00335.9660.0600.0600.0000.0000.0000.000
122A127PRO0-0.007-0.00835.790-0.007-0.0070.0000.0000.0000.000
123A128ALA00.0570.03234.473-0.213-0.2130.0000.0000.0000.000
124A129PHE0-0.004-0.00627.827-0.079-0.0790.0000.0000.0000.000
125A130ASN0-0.058-0.03128.556-0.023-0.0230.0000.0000.0000.000
126A131MET00.0140.02023.049-0.140-0.1400.0000.0000.0000.000
127A132ARG10.8920.94619.98414.51614.5160.0000.0000.0000.000
128A133VAL00.0240.01415.821-0.284-0.2840.0000.0000.0000.000
129A134THR0-0.136-0.08016.0710.0770.0770.0000.0000.0000.000
130A135GLY00.0440.01712.169-1.203-1.2030.0000.0000.0000.000
131A136LEU0-0.037-0.00210.7811.9531.9530.0000.0000.0000.000
132A137ARG10.8330.9028.39118.84218.8420.0000.0000.0000.000
133A138PRO00.0460.0187.4212.0212.0210.0000.0000.0000.000
134A139VAL00.0240.02410.3901.4681.4680.0000.0000.0000.000
135A140GLY0-0.019-0.00612.7151.6821.6820.0000.0000.0000.000
136A141MET0-0.033-0.00313.181-1.330-1.3300.0000.0000.0000.000
137A142VAL00.0570.03212.3050.7840.7840.0000.0000.0000.000
138A143MET0-0.041-0.03015.358-0.042-0.0420.0000.0000.0000.000
139A144LYS10.8720.93318.84014.14014.1400.0000.0000.0000.000
140A145GLY00.0830.03021.3930.1580.1580.0000.0000.0000.000
141A146ALA0-0.057-0.02823.912-0.518-0.5180.0000.0000.0000.000
142A147THR0-0.025-0.03925.296-0.284-0.2840.0000.0000.0000.000
143A148ALA00.030-0.00726.884-0.146-0.1460.0000.0000.0000.000
144A149GLU-1-0.931-0.95827.784-9.041-9.0410.0000.0000.0000.000
145A150ASP-1-0.749-0.84127.704-10.548-10.5480.0000.0000.0000.000
146A151ASP-1-0.798-0.90024.004-13.176-13.1760.0000.0000.0000.000
147A152SER0-0.041-0.00926.9910.0920.0920.0000.0000.0000.000
148A153ILE00.0060.01030.3540.1760.1760.0000.0000.0000.000
149A154VAL0-0.009-0.00626.0740.1740.1740.0000.0000.0000.000
150A155ALA00.0010.00228.221-0.008-0.0080.0000.0000.0000.000
151A156LEU00.0400.02429.4790.1780.1780.0000.0000.0000.000
152A157TRP0-0.025-0.02331.2920.2080.2080.0000.0000.0000.000
153A158ARG10.8270.92025.65411.59811.5980.0000.0000.0000.000
154A159ASP-1-0.836-0.89730.804-9.495-9.4950.0000.0000.0000.000
155A160THR0-0.012-0.00833.3160.2770.2770.0000.0000.0000.000
156A161PHE00.000-0.01231.8170.1540.1540.0000.0000.0000.000
157A162ALA00.0070.01232.3390.1110.1110.0000.0000.0000.000
158A163ASP-1-0.936-0.95634.134-7.991-7.9910.0000.0000.0000.000
159A164PHE0-0.046-0.02837.5150.1970.1970.0000.0000.0000.000
160A165PHE0-0.041-0.01734.1720.1610.1610.0000.0000.0000.000
161A166GLY00.0100.01736.7400.1200.1200.0000.0000.0000.000
162A167TYR0-0.100-0.06630.6880.1690.1690.0000.0000.0000.000
163A168ARG10.8930.93930.4349.3649.3640.0000.0000.0000.000
164A169HIS00.0260.01425.0910.2550.2550.0000.0000.0000.000
165A170PRO0-0.018-0.02824.8210.0270.0270.0000.0000.0000.000
166A171ASP-1-0.895-0.94621.792-12.777-12.7770.0000.0000.0000.000
167A172HIS0-0.078-0.04223.754-0.343-0.3430.0000.0000.0000.000
168A173ASP-1-0.824-0.92826.272-10.403-10.4030.0000.0000.0000.000
169A174THR0-0.099-0.05921.229-0.067-0.0670.0000.0000.0000.000
170A175TYR0-0.062-0.02020.569-0.788-0.7880.0000.0000.0000.000
171A176GLU-1-0.824-0.88014.097-19.658-19.6580.0000.0000.0000.000
172A177PHE00.0430.01418.8780.2320.2320.0000.0000.0000.000
173A178HIS0-0.069-0.04217.116-0.654-0.6540.0000.0000.0000.000
174A179ILE00.014-0.00118.2820.8650.8650.0000.0000.0000.000
175A180THR0-0.011-0.00417.580-0.923-0.9230.0000.0000.0000.000
176A181LEU0-0.012-0.01415.6830.7680.7680.0000.0000.0000.000
177A182SER0-0.028-0.01514.3570.4460.4460.0000.0000.0000.000
178A183TYR00.0330.01416.144-0.341-0.3410.0000.0000.0000.000
179A184ILE0-0.0080.00210.822-0.009-0.0090.0000.0000.0000.000
180A185VAL00.0030.01114.5040.6630.6630.0000.0000.0000.000
181A186SER0-0.019-0.02215.1830.2970.2970.0000.0000.0000.000
182A187TRP0-0.031-0.03310.517-1.002-1.0020.0000.0000.0000.000
183A188PHE00.0390.0137.4200.6460.6460.0000.0000.0000.000
184A189GLU-1-0.799-0.8858.139-23.047-23.0470.0000.0000.0000.000
185A190PRO00.0330.0155.119-2.940-2.9400.0000.0000.0000.000
187A192CYS0-0.097-0.0346.811-0.833-0.8330.0000.0000.0000.000
191A196TRP00.027-0.0145.4821.7071.7070.0000.0000.0000.000
194A199MET0-0.0330.0127.6113.3803.3800.0000.0000.0000.000
195A200LEU00.005-0.0056.1252.2842.2840.0000.0000.0000.000
196A201ASP-1-0.865-0.9276.538-40.383-40.3830.0000.0000.0000.000
197A202GLU-1-0.886-0.9329.540-18.636-18.6360.0000.0000.0000.000
198A203GLU-1-0.782-0.90512.390-16.149-16.1490.0000.0000.0000.000
199A204LEU0-0.0180.01211.3011.5421.5420.0000.0000.0000.000
200A205GLU-1-0.982-0.99313.778-18.498-18.4980.0000.0000.0000.000
201A206LYS10.8500.90915.93917.69817.6980.0000.0000.0000.000
202A207LEU0-0.001-0.00416.8721.0851.0850.0000.0000.0000.000
203A208ARG10.9170.95416.17318.44418.4440.0000.0000.0000.000
204A209VAL0-0.032-0.00719.5240.7620.7620.0000.0000.0000.000
205A210ALA0-0.037-0.01921.5990.6980.6980.0000.0000.0000.000
206A211ALA0-0.033-0.01822.0280.6480.6480.0000.0000.0000.000
207A212PRO0-0.0210.00822.330-0.409-0.4090.0000.0000.0000.000
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220A225LYS10.9900.99432.5648.4748.4740.0000.0000.0000.000
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