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- PDB-7vkr: Crystal structure of D. melanogaster SAMTOR in complex with SAM -

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Basic information

Entry
Database: PDB / ID: 7vkr
TitleCrystal structure of D. melanogaster SAMTOR in complex with SAM
ComponentsS-adenosylmethionine sensor upstream of mTORC1
KeywordsTRANSFERASE / SAMTOR / SAM
Function / homology
Function and homology information


S-adenosyl-L-methionine binding / negative regulation of TORC1 signaling / Transferases; Transferring one-carbon groups; Methyltransferases / methyltransferase activity / methylation
Similarity search - Function
S-adenosylmethionine-dependent methyltransferase Bmt2-like / 25S rRNA (adenine(2142)-N(1))-methyltransferase, Bmt2 / S-adenosyl-L-methionine-dependent methyltransferase superfamily
Similarity search - Domain/homology
CITRIC ACID / S-ADENOSYLMETHIONINE / S-adenosylmethionine sensor upstream of mTORC1
Similarity search - Component
Biological speciesDrosophila melanogaster (fruit fly)
MethodX-RAY DIFFRACTION / SYNCHROTRON / SAD / Resolution: 2.1 Å
AuthorsTang, X. / Zhang, T. / Ding, J.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)31530013 China
CitationJournal: Sci Adv / Year: 2022
Title: Molecular mechanism of S -adenosylmethionine sensing by SAMTOR in mTORC1 signaling.
Authors: Tang, X. / Zhang, Y. / Wang, G. / Zhang, C. / Wang, F. / Shi, J. / Zhang, T. / Ding, J.
History
DepositionSep 30, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 20, 2022Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: S-adenosylmethionine sensor upstream of mTORC1
B: S-adenosylmethionine sensor upstream of mTORC1
C: S-adenosylmethionine sensor upstream of mTORC1
D: S-adenosylmethionine sensor upstream of mTORC1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)143,53211
Polymers141,3624
Non-polymers2,1707
Water7,692427
1
A: S-adenosylmethionine sensor upstream of mTORC1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)35,7392
Polymers35,3401
Non-polymers3981
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area0 Å2
ΔGint0 kcal/mol
Surface area10680 Å2
MethodPISA
2
B: S-adenosylmethionine sensor upstream of mTORC1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)36,1234
Polymers35,3401
Non-polymers7833
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area250 Å2
ΔGint-0 kcal/mol
Surface area10580 Å2
MethodPISA
3
C: S-adenosylmethionine sensor upstream of mTORC1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)35,9313
Polymers35,3401
Non-polymers5912
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area0 Å2
ΔGint0 kcal/mol
Surface area10210 Å2
MethodPISA
4
D: S-adenosylmethionine sensor upstream of mTORC1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)35,7392
Polymers35,3401
Non-polymers3981
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area0 Å2
ΔGint0 kcal/mol
Surface area10300 Å2
MethodPISA
Unit cell
Length a, b, c (Å)50.269, 64.095, 79.274
Angle α, β, γ (deg.)90.100, 93.270, 96.610
Int Tables number1
Space group name H-MP1

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Components

#1: Protein
S-adenosylmethionine sensor upstream of mTORC1 / dSamtor / Probable methyltransferase BMT2 homolog


Mass: 35340.430 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Drosophila melanogaster (fruit fly) / Gene: Samtor, CG3570 / Production host: Escherichia coli (E. coli)
References: UniProt: Q9W138, Transferases; Transferring one-carbon groups; Methyltransferases
#2: Chemical
ChemComp-SAM / S-ADENOSYLMETHIONINE


Mass: 398.437 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C15H22N6O5S / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical ChemComp-CIT / CITRIC ACID


Mass: 192.124 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C6H8O7
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 427 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 1.79 Å3/Da / Density % sol: 31.36 %
Crystal growTemperature: 289 K / Method: evaporation
Details: 0.1 M sodium citrate, pH 5.0, and 20% (w/v) PEG 8,000

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRF / Beamline: BL19U1 / Wavelength: 0.9793 Å
DetectorType: DECTRIS PILATUS3 S 6M / Detector: PIXEL / Date: Jan 4, 2019
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9793 Å / Relative weight: 1
ReflectionResolution: 2.1→43.322 Å / Num. obs: 51008 / % possible obs: 88.5 % / Redundancy: 4.2 % / CC1/2: 0.995 / Rmerge(I) obs: 0.127 / Net I/σ(I): 9.5
Reflection shellResolution: 2.1→2.15 Å / Redundancy: 4.2 % / Rmerge(I) obs: 0.841 / Mean I/σ(I) obs: 1.8 / Num. unique obs: 3585 / CC1/2: 0.602 / % possible all: 59.6

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Processing

Software
NameVersionClassification
PHENIX1.12_2829refinement
PDB_EXTRACT3.27data extraction
XDSdata reduction
XDSdata scaling
PHENIXphasing
RefinementMethod to determine structure: SAD / Resolution: 2.1→43.322 Å / SU ML: 0.25 / Cross valid method: THROUGHOUT / σ(F): 1.96 / Phase error: 24.41 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2387 2018 3.96 %
Rwork0.1875 48879 -
obs0.1896 50897 88.85 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 98.05 Å2 / Biso mean: 29.5429 Å2 / Biso min: 6.66 Å2
Refinement stepCycle: final / Resolution: 2.1→43.322 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6897 0 147 427 7471
Biso mean--26.1 31.09 -
Num. residues----855
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0087196
X-RAY DIFFRACTIONf_angle_d1.0079745
X-RAY DIFFRACTIONf_chiral_restr0.0551081
X-RAY DIFFRACTIONf_plane_restr0.0061239
X-RAY DIFFRACTIONf_dihedral_angle_d18.6164399
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection Rwork% reflection obs (%)
2.1-2.15250.28051060.2472242862
2.1525-2.21070.33121020.2423262266
2.2107-2.27580.29171230.2329287073
2.2758-2.34920.27811240.2245310980
2.3492-2.43320.2641310.2142334085
2.4332-2.53060.25891600.2188364293
2.5306-2.64570.25941660.2113385797
2.6457-2.78520.22451590.2031378997
2.7852-2.95970.28411450.1845387098
2.9597-3.18810.24611620.1828386198
3.1881-3.50880.22521530.1692385298
3.5088-4.01620.19031620.1519386199
4.0162-5.05880.19181610.1502390699
5.0588-43.3220.24271640.2006387299
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL112)L122)L132)L222)L232)L332)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T112)T122)T132)T222)T232)T332)Origin x (Å)Origin y (Å)Origin z (Å)
12.42640.64981.24437.88691.05711.80580.12940.7523-0.2995-0.6521-0.066-0.68550.40340.3103-0.02960.21950.07890.0390.201-0.04440.156238.866339.82981.0934
23.2506-1.6872.22638.4091-8.76659.24-0.2409-0.2089-0.49560.12060.0219-0.1410.68970.52280.19380.32910.06780.04820.1675-0.02150.26737.861224.234996.4837
33.8655-2.09851.88558.8903-6.57245.0844-0.2482-0.026-0.4946-0.4590.29790.68370.5537-0.3477-0.28620.4062-0.13130.03550.27730.0030.392528.080529.609593.983
43.75810.1227-0.94074.51641.64423.19580.20520.44680.1685-0.8177-0.30710.1209-0.1783-0.2950.05990.24210.034-0.02620.14570.01410.094929.294853.021284.0457
56.39880.33210.36355.1666-2.04966.59510.11550.330.41980.0858-0.04690.8276-0.2912-0.4120.01360.12320.0093-0.02050.1551-0.03040.174319.889752.553395.0668
63.24330.0305-0.7192.9369-0.10463.38540.0669-0.18930.2218-0.0453-0.0069-0.2106-0.30430.3097-0.04280.0791-0.0223-0.01430.1222-0.03450.115534.735647.390395.4249
75.3414-1.27240.98849.1141-0.12688.29760.0021-0.34120.70650.38970.2668-1.3731-0.74091.5168-0.17370.2411-0.0067-0.11780.3901-0.03720.342944.597941.9244102.4235
81.19080.6427-1.33455.3081-2.83722.79470.0195-0.22570.0467-0.0754-0.3696-0.5978-0.03210.42050.33240.16020.0323-0.00460.1271-0.00950.213844.053841.613291.0749
99.27572.48871.41286.61932.34074.69050.0674-0.9187-0.86920.92030.1455-0.18350.44270.098-0.20390.26990.07230.0040.19740.0850.211537.317631.6504104.6237
101.0627-0.2541.23629.06140.76914.93630.1219-1.14450.3791.46440.0071-1.8747-0.12990.8638-0.08240.5715-0.0179-0.17480.9792-0.15790.735246.502744.0764107.4314
111.30940.1852-0.04612.77430.49020.26280.39960.74810.3273-0.9164-0.30370.416-0.1626-0.0368-0.07020.5320.1135-0.06380.18750.0790.019338.366519.458941.4436
122.4546-2.2728-3.57433.39156.13822.0293-0.2862-0.14870.4982-0.03510.03580.1226-1.0917-0.59150.1250.5656-0.0106-0.02650.14870.01130.255237.577534.161956.3058
132.5627-0.9755-1.16663.81321.84114.83960.2019-0.03010.5931-0.5710.1237-0.7804-1.12150.4432-0.33210.3821-0.07950.00740.2640.02280.291446.480925.886254.6012
143.0906-0.15230.77394.2182-1.75263.66660.05490.5663-0.0337-1.0628-0.2384-0.1283-0.11580.08520.1020.44330.08770.03250.2534-0.0220.130646.41628.959242.0265
155.3391.16412.41884.66484.34447.26070.19350.3352-0.2882-0.30310.149-0.65280.26720.5958-0.27720.2320.05310.03780.16670.02820.154252.97673.5954.1351
163.3911-0.58530.61063.5219-0.03064.21070.1433-0.0193-0.1787-0.2315-0.11550.17470.2597-0.2621-0.02270.186-0.01080.00280.12470.01420.071540.486811.328155.9273
172.07260.33571.57629.18832.39352.03920.2585-0.4743-0.07050.1454-0.1081.01180.7236-1.1546-0.16430.2253-0.04490.0370.38720.04420.257329.794316.524861.8337
183.55590.581.59815.07882.67082.56380.1898-0.4367-0.05910.3665-0.27650.48780.212-0.59610.07670.2555-0.00430.00080.22390.03180.164131.994418.826658.9498
191.04380.3256-0.56037.7461-4.82644.4648-0.10560.069-0.06530.51790.21480.7776-0.0142-0.2215-0.12640.1262-0.00830.03140.1473-0.03180.177741.507714.437379.1979
204.4713.75613.38775.15664.04334.05850.01660.08780.19910.00530.4942-0.7613-0.22960.5639-0.35640.1868-0.0449-0.05810.2051-0.04150.358855.486329.896279.9569
214.2655-0.39750.18232.4813-0.15382.5633-0.04850.1397-0.3219-0.19010.0455-0.38720.26490.27610.01190.13560.03220.05430.1386-0.00780.177354.70032.705175.1651
223.9979-0.5491-0.22943.26910.66534.1766-0.1842-0.371-0.2840.63710.1129-0.77760.48360.39470.0870.21150.0571-0.07290.21260.01830.314960.27595.978581.7416
230.5911-0.7754-0.01382.44730.99991.2928-0.4728-0.63650.03361.61730.4468-0.17630.11550.17720.02930.24760.0245-0.12250.2632-0.03260.163251.223116.055988.4271
242.36150.5678-0.18176.24040.4511.3839-0.3651-0.49380.65380.6310.236-0.3483-0.08890.2420.06910.28490.094-0.14530.3141-0.09240.230861.27426.83991.305
252.0765-1.7317-0.28758.47563.49267.3081-0.0694-0.1879-0.02370.65990.3346-0.8591-0.19130.6133-0.22280.20690.0104-0.0540.18630.02360.152636.231745.462339.4961
265.98574.3317-3.06545.01-3.00294.39610.2272-0.0609-0.777-0.16680.35881.14080.8778-0.3769-0.33160.3078-0.06320.04710.26380.13230.605422.090129.411338.2854
274.64-0.8467-0.29713.88940.69742.9242-0.08080.10490.26580.180.03770.401-0.3728-0.34370.04870.19710.060.0120.19230.02080.123423.141856.462933.9791
283.3330.0384-0.0992.3858-0.71212.9858-0.1895-0.5930.11980.59260.20940.847-0.8225-0.62990.040.33970.15130.10150.34790.01260.355917.046652.852940.1094
290.9589-0.611-1.30061.8223-0.34123.094-0.3294-0.7064-0.37341.66430.48950.43720.0965-0.1867-0.05130.47890.13930.11190.4050.14960.223324.029842.633447.8148
302.06380.31910.64592.4059-0.51550.3055-0.2603-1.0455-0.42441.2310.38330.551-0.2764-0.5885-0.11860.45490.0830.26620.48250.29410.413721.23638.177348.0278
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection detailsAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1chain 'A' and (resid 71 through 89 )A71 - 89
2X-RAY DIFFRACTION2chain 'A' and (resid 90 through 108 )A90 - 108
3X-RAY DIFFRACTION3chain 'A' and (resid 109 through 125 )A109 - 125
4X-RAY DIFFRACTION4chain 'A' and (resid 126 through 162 )A126 - 162
5X-RAY DIFFRACTION5chain 'A' and (resid 163 through 186 )A163 - 186
6X-RAY DIFFRACTION6chain 'A' and (resid 187 through 239 )A187 - 239
7X-RAY DIFFRACTION7chain 'A' and (resid 240 through 252 )A240 - 252
8X-RAY DIFFRACTION8chain 'A' and (resid 253 through 272 )A253 - 272
9X-RAY DIFFRACTION9chain 'A' and (resid 273 through 285 )A273 - 285
10X-RAY DIFFRACTION10chain 'A' and (resid 286 through 298 )A273 - 298
11X-RAY DIFFRACTION11chain 'B' and (resid 72 through 89 )B72 - 89
12X-RAY DIFFRACTION12chain 'B' and (resid 90 through 107 )B90 - 107
13X-RAY DIFFRACTION13chain 'B' and (resid 108 through 131 )B108 - 131
14X-RAY DIFFRACTION14chain 'B' and (resid 132 through 149 )B132 - 149
15X-RAY DIFFRACTION15chain 'B' and (resid 150 through 186 )B150 - 186
16X-RAY DIFFRACTION16chain 'B' and (resid 187 through 239 )B187 - 239
17X-RAY DIFFRACTION17chain 'B' and (resid 240 through 252 )B240 - 252
18X-RAY DIFFRACTION18chain 'B' and (resid 253 through 298 )B253 - 298
19X-RAY DIFFRACTION19chain 'C' and (resid 71 through 89 )C71 - 89
20X-RAY DIFFRACTION20chain 'C' and (resid 90 through 125 )C90 - 125
21X-RAY DIFFRACTION21chain 'C' and (resid 126 through 175 )C126 - 175
22X-RAY DIFFRACTION22chain 'C' and (resid 176 through 218 )C176 - 218
23X-RAY DIFFRACTION23chain 'C' and (resid 219 through 275 )C219 - 275
24X-RAY DIFFRACTION24chain 'C' and (resid 276 through 286 )C276 - 286
25X-RAY DIFFRACTION25chain 'D' and (resid 68 through 89 )D68 - 89
26X-RAY DIFFRACTION26chain 'D' and (resid 90 through 125 )D90 - 125
27X-RAY DIFFRACTION27chain 'D' and (resid 126 through 175 )D126 - 175
28X-RAY DIFFRACTION28chain 'D' and (resid 176 through 218 )D176 - 218
29X-RAY DIFFRACTION29chain 'D' and (resid 219 through 262 )D219 - 262
30X-RAY DIFFRACTION30chain 'D' and (resid 263 through 287 )D263 - 287

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