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: 3G6KL

Calculation Name: 1S21-A-Xray549

Preferred Name:

Target Type:

Ligand Name:

Ligand 3-letter code:

Ligand of Interest (LOI):

Structure Source: PDB

PDB ID: 1S21

Chain ID: A

ChEMBL ID:

UniProt ID: Q9K2L5

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 176
LigandResidueName
LigandFragmentNumber 0
LigandCharge
Software ABINIT-MP - Open Ver. 1 Rev. 23 (BINDS Ver. 1) / 20230712
Total energy (hartree)
FMO2-HF: Electronic energy -1667060.819063
FMO2-HF: Nuclear repulsion 1599689.897996
FMO2-HF: Total energy -67370.921067
FMO2-MP2: Total energy -67567.842245


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:29:PRO)


Summations of interaction energy for fragment #1(A:29:PRO)
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.
-107.213-96.4837.914-8.703-9.941-0.087
Interaction energy analysis for fragmet #1(A:29:PRO)
Snapshot

IFIE Diagram

Base fragment(s) of PIEDA/IFIE
Single fragment Multi fragments
Fragment list
Charge [e] FCHARGE : 1 / q_Mulliken : 0.795 / q_NPA : 0.888
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].
3A31ARG10.8440.9363.29355.06658.677-0.011-1.662-1.938-0.003
4A32PHE00.0310.0175.0415.2515.479-0.001-0.023-0.2030.000
79A107GLN0-0.063-0.0534.508-8.385-8.048-0.001-0.070-0.2670.000
80A108HIS0-0.039-0.0162.450-16.844-15.4482.456-1.732-2.120-0.022
81A109ILE0-0.0100.0082.488-10.532-8.4581.701-1.628-2.147-0.022
82A110GLY0-0.031-0.0312.339-23.025-20.0113.764-3.577-3.201-0.040
83A111ALA00.0650.0393.6084.4504.5200.006-0.011-0.0650.000
5A33VAL00.0430.0287.2033.2033.2030.0000.0000.0000.000
6A34GLY0-0.007-0.0029.1711.6541.6540.0000.0000.0000.000
7A35GLN0-0.013-0.0119.9831.9401.9400.0000.0000.0000.000
8A36TYR0-0.082-0.0366.443-0.321-0.3210.0000.0000.0000.000
9A37THR0-0.011-0.01712.8341.2681.2680.0000.0000.0000.000
10A38LEU0-0.0420.00116.1941.2691.2690.0000.0000.0000.000
11A39THR0-0.001-0.01718.009-0.114-0.1140.0000.0000.0000.000
12A40SER00.0140.01120.8500.5860.5860.0000.0000.0000.000
13A41ILE00.0650.03421.148-0.447-0.4470.0000.0000.0000.000
14A42HIS0-0.061-0.03022.352-0.123-0.1230.0000.0000.0000.000
15A43GLN0-0.004-0.00421.126-0.196-0.1960.0000.0000.0000.000
16A44LEU0-0.0020.02917.122-0.501-0.5010.0000.0000.0000.000
17A45SER00.0260.01019.4900.8620.8620.0000.0000.0000.000
18A46SER00.016-0.02721.412-0.094-0.0940.0000.0000.0000.000
19A47GLU-1-0.928-0.94519.591-15.074-15.0740.0000.0000.0000.000
20A48GLU-1-0.764-0.87115.894-19.029-19.0290.0000.0000.0000.000
21A49ARG10.8380.92819.10312.33012.3300.0000.0000.0000.000
22A50GLU-1-0.815-0.89321.999-11.655-11.6550.0000.0000.0000.000
23A51ASN00.007-0.00417.1910.6110.6110.0000.0000.0000.000
24A52PHE0-0.033-0.02917.068-0.389-0.3890.0000.0000.0000.000
25A53LEU0-0.053-0.02419.8350.1710.1710.0000.0000.0000.000
26A54ASP-1-0.831-0.91822.087-12.210-12.2100.0000.0000.0000.000
27A55ALA0-0.063-0.01618.2740.0730.0730.0000.0000.0000.000
28A56HIS0-0.065-0.04716.712-0.616-0.6160.0000.0000.0000.000
29A57ASP-1-0.829-0.92522.051-10.654-10.6540.0000.0000.0000.000
30A58PRO0-0.034-0.01425.7790.0550.0550.0000.0000.0000.000
31A59MET0-0.026-0.02227.9500.2400.2400.0000.0000.0000.000
32A60ARG10.7660.86325.93511.82511.8250.0000.0000.0000.000
33A61VAL0-0.024-0.00323.1050.0290.0290.0000.0000.0000.000
34A62TYR0-0.057-0.03725.096-0.160-0.1600.0000.0000.0000.000
35A63ASP-1-0.955-0.95929.053-9.115-9.1150.0000.0000.0000.000
36A64LEU0-0.0320.00231.4110.4110.4110.0000.0000.0000.000
37A65ASN00.001-0.01633.7180.2000.2000.0000.0000.0000.000
38A66SER0-0.022-0.05236.9460.0050.0050.0000.0000.0000.000
39A67GLU-1-0.785-0.84940.345-7.043-7.0430.0000.0000.0000.000
40A68THR0-0.0050.01635.949-0.028-0.0280.0000.0000.0000.000
41A69SER00.0110.01339.286-0.019-0.0190.0000.0000.0000.000
42A70VAL0-0.018-0.01436.929-0.225-0.2250.0000.0000.0000.000
43A71TYR00.0410.00838.8120.3220.3220.0000.0000.0000.000
44A72ARG10.8650.90739.2457.3047.3040.0000.0000.0000.000
45A73THR00.0180.02741.3580.1580.1580.0000.0000.0000.000
46A74THR0-0.084-0.04343.552-0.129-0.1290.0000.0000.0000.000
47A75GLN00.0160.02446.3500.0120.0120.0000.0000.0000.000
48A76ARG10.8840.92249.9295.8605.8600.0000.0000.0000.000
49A77GLU-1-0.905-0.96852.847-5.966-5.9660.0000.0000.0000.000
50A78TYR0-0.069-0.04348.2760.0470.0470.0000.0000.0000.000
51A79VAL00.0370.02548.593-0.052-0.0520.0000.0000.0000.000
52A80ARG10.9170.97451.8385.5435.5430.0000.0000.0000.000
53A81ASN0-0.059-0.03054.9550.1590.1590.0000.0000.0000.000
54A82GLY00.0520.03253.3500.0280.0280.0000.0000.0000.000
55A83TYR0-0.004-0.01750.377-0.023-0.0230.0000.0000.0000.000
56A84ALA00.0570.04546.3790.0580.0580.0000.0000.0000.000
57A85THR00.011-0.00546.7190.0270.0270.0000.0000.0000.000
58A86GLY00.0240.02142.790-0.084-0.0840.0000.0000.0000.000
59A87ASN0-0.013-0.01041.2510.3200.3200.0000.0000.0000.000
60A88PRO0-0.058-0.04941.454-0.161-0.1610.0000.0000.0000.000
61A89ASN0-0.0070.00341.090-0.193-0.1930.0000.0000.0000.000
62A90SER00.0390.02836.4400.0110.0110.0000.0000.0000.000
63A91GLY00.021-0.01136.102-0.063-0.0630.0000.0000.0000.000
64A92ALA0-0.0150.00632.576-0.183-0.1830.0000.0000.0000.000
65A93ILE0-0.033-0.01726.7690.0040.0040.0000.0000.0000.000
66A94ILE00.0480.03527.914-0.201-0.2010.0000.0000.0000.000
67A95ALA00.008-0.00323.468-0.330-0.3300.0000.0000.0000.000
68A96LEU0-0.009-0.01424.7950.4100.4100.0000.0000.0000.000
69A97HIS00.0040.00823.196-0.720-0.7200.0000.0000.0000.000
70A98GLU-1-0.873-0.94223.718-10.951-10.9510.0000.0000.0000.000
71A99GLU-1-0.951-0.98823.138-12.129-12.1290.0000.0000.0000.000
72A100LEU0-0.0340.00217.606-0.420-0.4200.0000.0000.0000.000
73A101GLN00.004-0.01016.5250.8160.8160.0000.0000.0000.000
74A102GLU-1-0.802-0.8899.898-29.288-29.2880.0000.0000.0000.000
75A103SER00.0040.00810.3431.2131.2130.0000.0000.0000.000
76A104PRO00.0140.00710.085-2.409-2.4090.0000.0000.0000.000
77A105TYR00.017-0.0087.688-1.161-1.1610.0000.0000.0000.000
78A106ALA00.0040.0085.910-5.251-5.2510.0000.0000.0000.000
84A112ARG10.8460.8946.84720.65820.6580.0000.0000.0000.000
85A113PRO00.0080.0039.2371.1801.1800.0000.0000.0000.000
86A114ASP-1-0.775-0.84611.775-20.001-20.0010.0000.0000.0000.000
87A115GLN0-0.029-0.02111.711-0.603-0.6030.0000.0000.0000.000
88A116ALA00.0310.00513.337-0.813-0.8130.0000.0000.0000.000
89A117ASP-1-0.887-0.94210.107-27.652-27.6520.0000.0000.0000.000
90A118ALA0-0.0200.0009.699-1.492-1.4920.0000.0000.0000.000
91A119TYR0-0.047-0.04010.616-0.424-0.4240.0000.0000.0000.000
92A120ARG10.8340.90111.63121.73921.7390.0000.0000.0000.000
93A121PRO00.0450.02416.4610.0460.0460.0000.0000.0000.000
94A122ARG10.8570.94919.61714.52914.5290.0000.0000.0000.000
95A123THR00.006-0.00121.7690.3530.3530.0000.0000.0000.000
96A124ALA00.0060.00624.175-0.028-0.0280.0000.0000.0000.000
97A125HIS00.0420.05027.7130.1150.1150.0000.0000.0000.000
98A126VAL00.0190.01831.0840.0530.0530.0000.0000.0000.000
99A127SER0-0.020-0.03233.2820.1380.1380.0000.0000.0000.000
100A128SER0-0.040-0.02631.8030.1680.1680.0000.0000.0000.000
101A129LEU00.0180.01031.8530.0890.0890.0000.0000.0000.000
102A130ASN0-0.089-0.03335.2940.3640.3640.0000.0000.0000.000
103A131THR0-0.024-0.01938.3580.3110.3110.0000.0000.0000.000
104A132PRO0-0.107-0.03739.049-0.105-0.1050.0000.0000.0000.000
105A133SER00.0250.00637.107-0.095-0.0950.0000.0000.0000.000
106A134LEU0-0.013-0.01238.4920.1740.1740.0000.0000.0000.000
107A135ASN00.0410.04635.8340.0010.0010.0000.0000.0000.000
108A136VAL00.000-0.00935.8070.2820.2820.0000.0000.0000.000
109A137MET0-0.0020.01432.896-0.352-0.3520.0000.0000.0000.000
110A138ALA00.0300.01633.4370.3260.3260.0000.0000.0000.000
111A139GLY00.1610.08033.634-0.188-0.1880.0000.0000.0000.000
112A140GLN0-0.052-0.03834.5730.2740.2740.0000.0000.0000.000
113A141GLY00.0090.00135.0630.2520.2520.0000.0000.0000.000
114A142ALA0-0.048-0.01836.0510.1090.1090.0000.0000.0000.000
115A143LEU00.0190.01137.0490.0950.0950.0000.0000.0000.000
116A144SER0-0.007-0.01639.1460.1830.1830.0000.0000.0000.000
117A145ALA00.0020.00436.1640.0900.0900.0000.0000.0000.000
118A146LEU0-0.0340.00738.1290.0540.0540.0000.0000.0000.000
119A147ARG10.8350.90239.9996.7976.7970.0000.0000.0000.000
120A148GLY0-0.031-0.00841.0320.1630.1630.0000.0000.0000.000
121A149TYR0-0.075-0.03939.105-0.057-0.0570.0000.0000.0000.000
122A150ALA00.0320.02641.9460.0200.0200.0000.0000.0000.000
123A151GLY00.002-0.00145.5720.0290.0290.0000.0000.0000.000
124A152SER0-0.063-0.03648.9050.0230.0230.0000.0000.0000.000
125A153ASP-1-0.852-0.91351.677-5.724-5.7240.0000.0000.0000.000
126A154HIS0-0.079-0.04346.8450.0210.0210.0000.0000.0000.000
127A155VAL00.0390.02047.755-0.070-0.0700.0000.0000.0000.000
128A156THR0-0.023-0.05143.593-0.194-0.1940.0000.0000.0000.000
129A157THR0-0.084-0.05844.8410.1440.1440.0000.0000.0000.000
130A158GLU-1-0.852-0.92443.576-7.112-7.1120.0000.0000.0000.000
131A159MET0-0.053-0.02341.7630.1620.1620.0000.0000.0000.000
132A160ARG10.7970.86642.4376.9236.9230.0000.0000.0000.000
133A161LEU00.0160.00835.4710.0420.0420.0000.0000.0000.000
134A162GLY00.0550.01240.094-0.064-0.0640.0000.0000.0000.000
135A163ASP-1-0.843-0.90141.884-6.829-6.8290.0000.0000.0000.000
136A164PHE0-0.033-0.03039.7450.1070.1070.0000.0000.0000.000
137A165LEU0-0.0080.01136.4110.0290.0290.0000.0000.0000.000
138A166ASP-1-0.847-0.91740.237-7.208-7.2080.0000.0000.0000.000
139A167GLN0-0.160-0.09843.0810.3170.3170.0000.0000.0000.000
140A168GLY0-0.024-0.00940.7710.0500.0500.0000.0000.0000.000
141A169GLY0-0.052-0.01539.040-0.136-0.1360.0000.0000.0000.000
142A170LYS10.9330.95633.0749.2589.2580.0000.0000.0000.000
143A171VAL00.0530.02031.4180.1340.1340.0000.0000.0000.000
144A172TYR00.0140.00228.717-0.125-0.1250.0000.0000.0000.000
145A173SER00.0740.03725.9040.2080.2080.0000.0000.0000.000
146A174ASP-1-0.846-0.94927.404-10.272-10.2720.0000.0000.0000.000
147A175THR0-0.050-0.01225.645-0.387-0.3870.0000.0000.0000.000
148A176SER0-0.0020.00327.6050.1640.1640.0000.0000.0000.000
149A177ALA00.0260.01530.9500.1520.1520.0000.0000.0000.000
150A178MET0-0.117-0.07233.1330.3710.3710.0000.0000.0000.000
151A179SER0-0.013-0.01033.9880.3210.3210.0000.0000.0000.000
152A180ALA0-0.0030.01931.623-0.289-0.2890.0000.0000.0000.000
153A181GLY00.0410.00330.8990.2180.2180.0000.0000.0000.000
154A182GLY0-0.049-0.02928.753-0.088-0.0880.0000.0000.0000.000
155A183ASP-1-0.842-0.90628.571-9.976-9.9760.0000.0000.0000.000
156A184SER0-0.040-0.03530.3730.2520.2520.0000.0000.0000.000
157A185VAL0-0.064-0.01530.6030.3800.3800.0000.0000.0000.000
158A186GLU-1-0.836-0.91628.855-10.232-10.2320.0000.0000.0000.000
159A187ALA00.001-0.00529.7640.3780.3780.0000.0000.0000.000
160A188LEU0-0.002-0.00629.971-0.386-0.3860.0000.0000.0000.000
161A189ILE0-0.033-0.01732.0340.3580.3580.0000.0000.0000.000
162A190VAL00.0360.02333.436-0.198-0.1980.0000.0000.0000.000
163A191THR0-0.017-0.01135.8150.2080.2080.0000.0000.0000.000
164A192LEU00.0040.00238.1870.0640.0640.0000.0000.0000.000
165A193PRO00.0350.01741.6860.1110.1110.0000.0000.0000.000
166A194LYS10.9890.97843.6517.0457.0450.0000.0000.0000.000
167A195GLY0-0.027-0.00846.6990.0520.0520.0000.0000.0000.000
168A196ARG10.8510.93845.7866.8436.8430.0000.0000.0000.000
169A197LYS10.8960.95247.4526.0456.0450.0000.0000.0000.000
170A198VAL00.0330.03843.6690.0510.0510.0000.0000.0000.000
171A199PRO00.000-0.00947.0400.1030.1030.0000.0000.0000.000
172A200VAL0-0.044-0.03346.564-0.156-0.1560.0000.0000.0000.000
173A201ASN0-0.038-0.00848.0170.2840.2840.0000.0000.0000.000
174A202ILE0-0.020-0.02148.258-0.134-0.1340.0000.0000.0000.000
175A203LEU00.002-0.00445.4270.0710.0710.0000.0000.0000.000
176A204ASP-2-1.584-1.73148.139-12.582-12.5820.0000.0000.0000.000