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: Y7LK2

Calculation Name: 1XQB-A-Xray549

Preferred Name:

Target Type:

Ligand Name:

Ligand 3-letter code:

Ligand of Interest (LOI):

Structure Source: PDB

PDB ID: 1XQB

Chain ID: A

ChEMBL ID:

UniProt ID: P44740

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 196
LigandResidueName
LigandFragmentNumber 0
LigandCharge
Software ABINIT-MP - Open Ver. 1 Rev. 23 (BINDS Ver. 1) / 20230922
Total energy (hartree)
FMO2-HF: Electronic energy -2086184.186595
FMO2-HF: Nuclear repulsion 2008078.503215
FMO2-HF: Total energy -78105.683379
FMO2-MP2: Total energy -78333.602241


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:1:MET)


Summations of interaction energy for fragment #1(A:1:MET)
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.
-52.324-50.749-0.021-0.611-0.9440
Interaction energy analysis for fragmet #1(A:1:MET)
Snapshot

IFIE Diagram

Base fragment(s) of PIEDA/IFIE
Single fragment Multi fragments
Fragment list
Charge [e] FCHARGE : 1 / q_Mulliken : 0.810 / q_NPA : 0.898
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].
3A3ASP-1-0.854-0.9193.821-37.654-36.079-0.021-0.611-0.9440.000
4A4LEU0-0.024-0.0176.555-1.815-1.8150.0000.0000.0000.000
5A5THR0-0.023-0.0068.8682.2222.2220.0000.0000.0000.000
6A6LEU0-0.012-0.00412.365-0.072-0.0720.0000.0000.0000.000
7A7SER00.0250.01315.0970.4680.4680.0000.0000.0000.000
8A8PRO0-0.024-0.02318.437-0.136-0.1360.0000.0000.0000.000
9A9ILE00.0100.01820.1680.3340.3340.0000.0000.0000.000
10A10ALA00.003-0.00422.8490.5760.5760.0000.0000.0000.000
11A11ILE0-0.0100.01525.192-0.411-0.4110.0000.0000.0000.000
12A12ILE0-0.032-0.00627.9110.2300.2300.0000.0000.0000.000
13A13HIS00.0120.00629.7660.0460.0460.0000.0000.0000.000
14A14THR0-0.047-0.05332.428-0.041-0.0410.0000.0000.0000.000
15A15PRO0-0.0140.00334.5580.0560.0560.0000.0000.0000.000
16A16TYR0-0.005-0.01032.9600.2890.2890.0000.0000.0000.000
17A17LYS10.8680.93333.6738.0018.0010.0000.0000.0000.000
18A18GLU-1-0.855-0.91532.742-8.394-8.3940.0000.0000.0000.000
19A19LYS10.9590.95626.05810.55310.5530.0000.0000.0000.000
20A20PHE0-0.032-0.02231.2730.0350.0350.0000.0000.0000.000
21A21SER0-0.012-0.03534.4200.1890.1890.0000.0000.0000.000
22A22VAL0-0.0230.01630.7230.1170.1170.0000.0000.0000.000
23A23PRO0-0.021-0.00233.8860.0160.0160.0000.0000.0000.000
24A24ARG10.8000.87533.1407.5287.5280.0000.0000.0000.000
25A25GLN0-0.093-0.05233.373-0.062-0.0620.0000.0000.0000.000
26A26PRO00.0790.03332.1290.2250.2250.0000.0000.0000.000
27A27ASN0-0.010-0.00933.0690.0220.0220.0000.0000.0000.000
28A28LEU0-0.0190.00936.3960.1740.1740.0000.0000.0000.000
29A29VAL0-0.026-0.00738.2490.2680.2680.0000.0000.0000.000
30A30GLU-1-0.807-0.88739.179-6.947-6.9470.0000.0000.0000.000
31A31ASP-1-0.748-0.86340.985-6.961-6.9610.0000.0000.0000.000
32A32GLY0-0.0060.00537.637-0.018-0.0180.0000.0000.0000.000
33A33VAL0-0.087-0.05035.920-0.227-0.2270.0000.0000.0000.000
34A34GLY00.0480.03433.1060.0150.0150.0000.0000.0000.000
35A35ILE0-0.048-0.02933.9040.1410.1410.0000.0000.0000.000
36A36VAL00.0040.00527.382-0.141-0.1410.0000.0000.0000.000
37A37GLU-1-0.852-0.90730.506-9.185-9.1850.0000.0000.0000.000
38A38LEU0-0.028-0.02025.903-0.387-0.3870.0000.0000.0000.000
39A39LEU00.0020.00425.1150.3830.3830.0000.0000.0000.000
40A40PRO0-0.0020.00427.018-0.196-0.1960.0000.0000.0000.000
41A41PRO0-0.060-0.03823.826-0.279-0.2790.0000.0000.0000.000
42A42TYR00.0260.00119.9080.1050.1050.0000.0000.0000.000
43A43ASN0-0.0050.00825.509-0.191-0.1910.0000.0000.0000.000
44A44SER00.0370.02128.3390.3330.3330.0000.0000.0000.000
45A45PRO00.038-0.01030.041-0.111-0.1110.0000.0000.0000.000
46A46GLU-1-0.975-1.00429.058-9.997-9.9970.0000.0000.0000.000
47A47ALA0-0.0240.00625.886-0.160-0.1600.0000.0000.0000.000
48A48VAL00.0150.00626.983-0.218-0.2180.0000.0000.0000.000
49A49ARG10.9110.96829.7559.8039.8030.0000.0000.0000.000
50A50GLY00.0290.01430.487-0.270-0.2700.0000.0000.0000.000
51A51LEU0-0.015-0.02127.286-0.073-0.0730.0000.0000.0000.000
52A52GLU-1-0.870-0.94031.038-8.924-8.9240.0000.0000.0000.000
53A53GLN0-0.082-0.02332.5730.3010.3010.0000.0000.0000.000
54A54PHE0-0.047-0.02228.8940.0160.0160.0000.0000.0000.000
55A55SER00.0410.02332.4700.0190.0190.0000.0000.0000.000
56A56HIS0-0.081-0.04329.986-0.093-0.0930.0000.0000.0000.000
57A57LEU00.0390.02526.974-0.192-0.1920.0000.0000.0000.000
58A58TRP0-0.097-0.05622.2760.1280.1280.0000.0000.0000.000
59A59LEU00.0110.00523.390-0.079-0.0790.0000.0000.0000.000
60A60ILE0-0.008-0.00916.559-0.060-0.0600.0000.0000.0000.000
61A61PHE00.000-0.00319.956-0.036-0.0360.0000.0000.0000.000
62A62GLN0-0.049-0.02318.671-0.935-0.9350.0000.0000.0000.000
63A63MET-1-0.959-0.94817.941-12.244-12.2440.0000.0000.0000.000
64A86VAL10.8800.93422.92711.07911.0790.0000.0000.0000.000
65A87GLY00.1220.05519.1520.0130.0130.0000.0000.0000.000
66A88VAL00.0680.02915.9170.2100.2100.0000.0000.0000.000
67A89PHE00.013-0.00311.2730.2910.2910.0000.0000.0000.000
68A90ALA0-0.0150.01816.3100.0950.0950.0000.0000.0000.000
69A91SER0-0.026-0.01419.4970.7270.7270.0000.0000.0000.000
70A92ARG10.9680.96719.89411.84711.8470.0000.0000.0000.000
71A93ALA0-0.0200.00820.3690.1210.1210.0000.0000.0000.000
72A94THR00.1010.02219.744-0.346-0.3460.0000.0000.0000.000
73A95HIS0-0.013-0.00318.870-0.925-0.9250.0000.0000.0000.000
74A96ARG10.8490.91214.33015.02715.0270.0000.0000.0000.000
75A97PRO0-0.026-0.01910.5420.1610.1610.0000.0000.0000.000
76A98ASN00.0530.0308.529-0.879-0.8790.0000.0000.0000.000
77A99PRO00.0060.01812.7790.4150.4150.0000.0000.0000.000
78A100LEU00.0180.00612.3840.4480.4480.0000.0000.0000.000
79A101GLY0-0.0030.00516.2910.0560.0560.0000.0000.0000.000
80A102MET0-0.027-0.01918.150-0.357-0.3570.0000.0000.0000.000
81A103SER0-0.034-0.04421.0240.4070.4070.0000.0000.0000.000
82A104LYS10.9630.99024.8269.5439.5430.0000.0000.0000.000
83A105VAL0-0.0030.00026.9920.3670.3670.0000.0000.0000.000
84A106GLU-1-0.865-0.92930.120-8.623-8.6230.0000.0000.0000.000
85A107LEU0-0.008-0.00731.207-0.077-0.0770.0000.0000.0000.000
86A108ARG10.8870.95533.7888.0028.0020.0000.0000.0000.000
87A109GLN0-0.018-0.01736.3930.2300.2300.0000.0000.0000.000
88A110VAL00.0240.02533.026-0.201-0.2010.0000.0000.0000.000
89A111GLU-1-0.855-0.90935.412-7.700-7.7000.0000.0000.0000.000
90A112CYS0-0.014-0.00735.120-0.339-0.3390.0000.0000.0000.000
91A113ILE00.0200.00937.0840.2600.2600.0000.0000.0000.000
92A114ASN0-0.015-0.01438.556-0.117-0.1170.0000.0000.0000.000
93A115GLY00.0210.01735.540-0.014-0.0140.0000.0000.0000.000
94A116ASN0-0.027-0.00134.017-0.424-0.4240.0000.0000.0000.000
95A117ILE0-0.008-0.01031.0160.1950.1950.0000.0000.0000.000
96A118PHE0-0.0070.00332.267-0.235-0.2350.0000.0000.0000.000
97A119LEU00.0210.00628.4800.2140.2140.0000.0000.0000.000
98A120HIS10.8330.90332.7468.1038.1030.0000.0000.0000.000
99A121LEU00.0410.01930.0870.0240.0240.0000.0000.0000.000
100A122GLY0-0.020-0.02034.4350.3340.3340.0000.0000.0000.000
101A123ALA0-0.033-0.02035.284-0.065-0.0650.0000.0000.0000.000
102A124VAL0-0.020-0.00830.619-0.229-0.2290.0000.0000.0000.000
103A125ASP-1-0.856-0.91827.705-10.329-10.3290.0000.0000.0000.000
104A126LEU0-0.0030.00825.382-0.129-0.1290.0000.0000.0000.000
105A127VAL0-0.006-0.00928.3050.3420.3420.0000.0000.0000.000
106A128ASP-1-0.785-0.86529.674-9.161-9.1610.0000.0000.0000.000
107A129GLY00.0300.01630.144-0.057-0.0570.0000.0000.0000.000
108A130THR0-0.079-0.05224.532-0.411-0.4110.0000.0000.0000.000
109A131PRO00.0070.00122.1640.0510.0510.0000.0000.0000.000
110A132ILE0-0.005-0.01222.314-0.358-0.3580.0000.0000.0000.000
111A133PHE0-0.009-0.02117.189-0.142-0.1420.0000.0000.0000.000
112A134ASP-1-0.824-0.91317.614-16.151-16.1510.0000.0000.0000.000
113A135ILE00.0020.00819.7330.4980.4980.0000.0000.0000.000
114A136LYS10.8540.92416.98215.86015.8600.0000.0000.0000.000
115A137PRO00.0420.02423.0550.3330.3330.0000.0000.0000.000
116A138TYR0-0.052-0.03124.565-0.259-0.2590.0000.0000.0000.000
117A139ILE0-0.016-0.01224.1550.5080.5080.0000.0000.0000.000
118A140ALA00.002-0.01426.613-0.184-0.1840.0000.0000.0000.000
119A141TYR0-0.035-0.01326.4540.2380.2380.0000.0000.0000.000
120A142ALA0-0.012-0.00822.693-0.035-0.0350.0000.0000.0000.000
121A143ASP-1-0.787-0.88223.023-12.818-12.8180.0000.0000.0000.000
122A144SER0-0.073-0.02924.6380.1420.1420.0000.0000.0000.000
123A145GLU-1-0.871-0.93425.258-10.336-10.3360.0000.0000.0000.000
124A146PRO0-0.031-0.03027.4030.0530.0530.0000.0000.0000.000
125A147ASN0-0.041-0.01730.0350.2270.2270.0000.0000.0000.000
126A148ALA00.0140.02525.767-0.009-0.0090.0000.0000.0000.000
127A149GLN00.027-0.00727.4200.0350.0350.0000.0000.0000.000
128A150SER0-0.092-0.05025.554-0.461-0.4610.0000.0000.0000.000
129A151SER0-0.029-0.00927.9470.1000.1000.0000.0000.0000.000
130A152PHE00.0160.01330.9670.1050.1050.0000.0000.0000.000
131A153ALA00.0060.00334.479-0.049-0.0490.0000.0000.0000.000
132A154GLN0-0.027-0.01036.5260.0500.0500.0000.0000.0000.000
133A155GLU-1-0.807-0.88939.603-6.860-6.8600.0000.0000.0000.000
134A156LYS10.8870.93836.4977.5677.5670.0000.0000.0000.000
135A157LEU0-0.018-0.00637.840-0.039-0.0390.0000.0000.0000.000
136A158PRO00.0250.00239.7900.0930.0930.0000.0000.0000.000
137A159VAL0-0.033-0.00241.5070.1560.1560.0000.0000.0000.000
138A160LYS10.9550.98742.7126.2196.2190.0000.0000.0000.000
139A161MET0-0.031-0.00843.9260.2200.2200.0000.0000.0000.000
140A162THR0-0.009-0.00847.8360.0090.0090.0000.0000.0000.000
141A163VAL00.0220.01847.236-0.009-0.0090.0000.0000.0000.000
142A164GLU0-0.039-0.01450.5470.1010.1010.0000.0000.0000.000
143A165PHE00.0380.00650.157-0.061-0.0610.0000.0000.0000.000
144A166THR0-0.008-0.00654.5260.1390.1390.0000.0000.0000.000
145A167GLU-1-0.839-0.94257.259-5.146-5.1460.0000.0000.0000.000
146A168GLN0-0.071-0.05255.7500.0950.0950.0000.0000.0000.000
147A169ALA00.0360.02053.129-0.045-0.0450.0000.0000.0000.000
148A170LYS10.8320.92754.4365.2895.2890.0000.0000.0000.000
149A171SER0-0.0060.00256.594-0.040-0.0400.0000.0000.0000.000
150A172ALA0-0.018-0.00653.415-0.036-0.0360.0000.0000.0000.000
151A173VAL00.0200.00850.504-0.089-0.0890.0000.0000.0000.000
152A174LYS10.8590.94052.6055.5705.5700.0000.0000.0000.000
153A175LYS10.9991.00454.0385.7445.7440.0000.0000.0000.000
154A176ARG10.7490.85949.1276.1096.1090.0000.0000.0000.000
155A177GLU-1-0.844-0.91250.499-6.148-6.1480.0000.0000.0000.000
156A178GLU-1-0.905-0.96151.628-5.735-5.7350.0000.0000.0000.000
157A179LYS10.8520.92848.9526.0366.0360.0000.0000.0000.000
158A180ARG10.8860.95341.9717.0997.0990.0000.0000.0000.000
159A181PRO00.0600.03047.4370.0560.0560.0000.0000.0000.000
160A182HIS0-0.017-0.01946.593-0.092-0.0920.0000.0000.0000.000
161A183LEU00.0030.01745.372-0.080-0.0800.0000.0000.0000.000
162A184SER0-0.017-0.01647.467-0.009-0.0090.0000.0000.0000.000
163A185ARG10.7640.84245.4756.6806.6800.0000.0000.0000.000
164A186PHE00.0250.02439.176-0.078-0.0780.0000.0000.0000.000
165A187ILE0-0.0110.00043.279-0.165-0.1650.0000.0000.0000.000
166A188ARG10.8060.85742.7376.9826.9820.0000.0000.0000.000
167A189GLN00.0350.00739.162-0.149-0.1490.0000.0000.0000.000
168A190VAL00.0050.01141.441-0.061-0.0610.0000.0000.0000.000
169A191LEU0-0.081-0.03043.3430.1370.1370.0000.0000.0000.000
170A192GLU-2-1.620-1.79937.660-15.181-15.1810.0000.0000.0000.000
171A206ASP-1-0.910-0.95152.293-5.771-5.7710.0000.0000.0000.000
172A207ARG10.7440.86645.9956.2096.2090.0000.0000.0000.000
173A208ILE00.0720.04549.248-0.003-0.0030.0000.0000.0000.000
174A209TYR00.005-0.01643.756-0.097-0.0970.0000.0000.0000.000
175A210GLY00.0360.02043.0450.0880.0880.0000.0000.0000.000
176A211MET0-0.046-0.02138.822-0.147-0.1470.0000.0000.0000.000
177A212SER00.0220.01838.1950.2180.2180.0000.0000.0000.000
178A213LEU0-0.0200.00438.471-0.223-0.2230.0000.0000.0000.000
179A214TYR0-0.035-0.02839.4790.1490.1490.0000.0000.0000.000
180A215GLU-1-0.890-0.96340.485-7.367-7.3670.0000.0000.0000.000
181A216PHE0-0.0030.01342.9830.1190.1190.0000.0000.0000.000
182A217ASN0-0.029-0.00141.960-0.183-0.1830.0000.0000.0000.000
183A218VAL00.0420.00145.0590.1500.1500.0000.0000.0000.000
184A219LYS0-0.0460.00646.859-0.037-0.0370.0000.0000.0000.000
185A220TRP00.0520.03143.0270.0110.0110.0000.0000.0000.000
186A221ARG10.8800.94338.9827.4637.4630.0000.0000.0000.000
187A222ILE0-0.0040.00243.8240.0290.0290.0000.0000.0000.000
188A223LYS00.000-0.00745.963-0.143-0.1430.0000.0000.0000.000
189A224ALA00.0150.00347.8670.0970.0970.0000.0000.0000.000
190A225GLY00.0450.02451.0220.1190.1190.0000.0000.0000.000
191A226THR0-0.055-0.01451.785-0.091-0.0910.0000.0000.0000.000
192A227VAL00.0750.04449.4780.0440.0440.0000.0000.0000.000
193A228ASN0-0.019-0.05251.3920.0650.0650.0000.0000.0000.000
194A229CYS-1-0.763-0.83852.125-5.697-5.6970.0000.0000.0000.000
195A230VAL0-0.016-0.02348.263-0.128-0.1280.0000.0000.0000.000
196A231GLU-2-1.691-1.84147.584-12.851-12.8510.0000.0000.0000.000