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- PDB-7vkq: Crystal structure of D. melanogaster SAMTOR in the SAH bound form -

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Basic information

Entry
Database: PDB / ID: 7vkq
TitleCrystal structure of D. melanogaster SAMTOR in the SAH bound form
ComponentsS-adenosylmethionine sensor upstream of mTORC1
KeywordsTRANSFERASE / SAMTOR / SAH
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
S-ADENOSYL-L-HOMOCYSTEINE / S-adenosylmethionine sensor upstream of mTORC1
Similarity search - Component
Biological speciesDrosophila melanogaster (fruit fly)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.094 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
Revision 1.1Nov 29, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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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)141,5868
Polymers140,0494
Non-polymers1,5384
Water10,773598
1
A: S-adenosylmethionine sensor upstream of mTORC1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)35,3972
Polymers35,0121
Non-polymers3841
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: S-adenosylmethionine sensor upstream of mTORC1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)35,3972
Polymers35,0121
Non-polymers3841
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
3
C: S-adenosylmethionine sensor upstream of mTORC1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)35,3972
Polymers35,0121
Non-polymers3841
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
4
D: S-adenosylmethionine sensor upstream of mTORC1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)35,3972
Polymers35,0121
Non-polymers3841
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)49.934, 63.992, 80.268
Angle α, β, γ (deg.)90.260, 93.380, 96.790
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: 35012.164 Da / Num. of mol.: 4 / Fragment: trasnferase
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-SAH / S-ADENOSYL-L-HOMOCYSTEINE


Type: L-peptide linking / Mass: 384.411 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C14H20N6O5S / Feature type: SUBJECT OF INVESTIGATION
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 598 / 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: 1.82 Å3/Da / Density % sol: 32.24 %
Crystal growTemperature: 290 K / Method: evaporation / pH: 5
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: BL18U1 / Wavelength: 0.9792 Å
DetectorType: DECTRIS PILATUS3 S 6M / Detector: PIXEL / Date: May 17, 2020
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9792 Å / Relative weight: 1
ReflectionResolution: 2.09→49.49 Å / Num. obs: 54989 / % possible obs: 94.8 % / Redundancy: 2 % / CC1/2: 0.993 / Rmerge(I) obs: 0.105 / Net I/σ(I): 6.1
Reflection shellResolution: 2.09→2.14 Å / Rmerge(I) obs: 0.54 / Mean I/σ(I) obs: 1.7 / Num. unique obs: 4909 / CC1/2: 0.678 / % possible all: 78.5

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Processing

Software
NameVersionClassification
PHENIX1.12_2829refinement
PDB_EXTRACT3.27data extraction
XDSdata reduction
XDSdata scaling
PHENIXphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 7VKK
Resolution: 2.094→41.022 Å / SU ML: 0.24 / Cross valid method: THROUGHOUT / σ(F): 1.96 / Phase error: 21 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2062 1995 3.63 %
Rwork0.1662 52981 -
obs0.1676 54976 94.82 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 75.94 Å2 / Biso mean: 26.4826 Å2 / Biso min: 6.14 Å2
Refinement stepCycle: final / Resolution: 2.094→41.022 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms7025 0 104 598 7727
Biso mean--16.33 32.13 -
Num. residues----873
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0077344
X-RAY DIFFRACTIONf_angle_d0.949957
X-RAY DIFFRACTIONf_chiral_restr0.0541109
X-RAY DIFFRACTIONf_plane_restr0.0061268
X-RAY DIFFRACTIONf_dihedral_angle_d18.1344495
LS refinement shell

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

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection Rwork% reflection obs (%)
2.094-2.14630.3071170.2526319280
2.1463-2.20430.28121330.2168358290
2.2043-2.26920.23251350.2079371793
2.2692-2.34240.28531440.2015377195
2.3424-2.42610.28321550.1959381195
2.4261-2.52330.23161340.1989382095
2.5233-2.63810.23081470.1815390497
2.6381-2.77710.20931410.1681390697
2.7771-2.95110.23061560.1655386598
2.9511-3.17890.18991400.1597387297
3.1789-3.49860.19161540.1497388798
3.4986-4.00450.14421430.1285394198
4.0045-5.04380.15991520.1253385697
5.0438-41.0220.1841440.1713385797
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)
13.85341.63122.49947.86811.0071.6366-0.45820.7459-0.2163-0.97210.0007-0.40540.07340.28310.27340.24550.02340.11540.1245-0.11680.202539.84120.09940.091
22.0086-0.87690.9395.3833-6.64582.0262-0.2825-0.2106-0.81730.3046-0.312-0.61160.53810.84330.52090.48760.1234-0.02550.1441-0.00390.621738.57836.52457.381
33.6429-1.15931.71546.2948-2.86284.81070.0515-0.1272-0.996-0.31250.32910.54050.5858-0.2061-0.40250.17780.01170.02450.1993-0.020.352548.83627.37453.871
43.8861-0.1871-0.41474.77283.1976.4909-0.03110.3958-0.0068-0.6173-0.12250.2304-0.1442-0.13060.13550.17760.0128-0.02280.12330.00720.079149.2717.10544.485
56.7202-0.4205-0.3285.8237-2.8014.9075-0.02450.12220.55990.0420.23110.8264-0.1359-0.4317-0.16160.1010.00640.03020.1642-0.02010.199356.818.50357.543
63.5974-1.2533-1.11772.96310.07274.60.0116-0.08710.1570.0476-0.0778-0.2309-0.43980.1488-0.03250.12640.0168-0.01590.0555-0.01830.088343.50511.453.446
76.03950.24090.19473.86190.55974.36390.1627-0.49340.38380.3992-0.1297-0.1376-0.24670.2501-0.00280.1492-0.024-0.0040.135-0.00690.081643.14212.55761.747
82.5627-1.1957-0.773.29780.05114.05270.0457-0.1072-0.24340.161-0.0429-0.4757-0.04720.37040.01150.08990.0104-0.01450.1-0.00990.111439.5117.5751.862
96.11824.7964-2.68166.58042.27842.0380.1752-0.69540.11650.16610.2149-0.7454-0.17231.0863-0.39930.2304-0.0127-0.04930.36890.03150.307731.58618.45661.386
101.68140.4146-0.69595.0106-1.55061.6578-0.07520.044-0.3284-0.1619-0.114-0.66440.18240.20040.22350.1410.04120.00270.1166-0.01950.249434.68620.63451.3
116.93630.98180.9898.85460.73715.7520.2928-0.7956-0.05491.0528-0.1322-1.1494-0.15850.9928-0.08550.2592-0.0244-0.03840.39490.09450.349531.9819.6965.843
124.33150.6454-0.97014.6061-1.44171.9595-0.19750.9558-0.706-1.0825-0.29840.484-0.2979-0.34220.20230.48970.08940.02820.10690.2645-0.253940.22643.26380.209
132.6776-2.8875-4.80373.30735.92042.02170.08580.07130.3055-0.3729-0.0948-0.3401-0.9326-0.5941-0.00790.46570.02260.01460.14210.03850.211539.02126.56696.461
142.127-1.2551-0.91265.15983.06313.8922-0.1047-0.18710.5924-0.47460.3082-0.4555-0.74160.3311-0.26550.3116-0.0295-0.04020.2137-0.04320.238630.435.14593.274
153.12510.37020.34995.4679-1.07685.77650.06910.3609-0.023-0.6775-0.0755-0.2922-0.02430.13360.00120.18120.03910.03690.1728-0.0160.080830.47156.20483.851
165.54310.50321.69518.24483.63346.3349-0.1325-0.0315-0.15510.04170.349-0.85720.15280.5467-0.1770.1170.0092-0.00440.21640.00780.13321.17754.41395.657
173.78830.0641-0.443.50350.07373.1393-0.0762-0.0724-0.1275-0.04460.08760.25040.1146-0.2849-0.02290.1424-0.01810.00590.1280.02430.06138.44847.94397.35
181.74681.17241.83365.73453.97543.3362-0.12790.07530.2549-0.1917-0.28330.5713-0.1582-0.23270.41390.18990.03170.00160.11460.01430.140345.22843.46291.071
195.98132.563-0.55976.72560.56353.86520.1128-0.5915-0.11870.7672-0.14230.67060.0873-0.6175-0.01050.2220.02060.02040.29380.02020.159243.40840.066105.984
204.04430.7914-0.82255.6949-2.16175.0873-0.0669-0.1839-0.10360.03290.11330.8510.1859-0.5101-0.05970.0892-0.00480.02680.1873-0.00750.183941.842214.611379.2061
216.35254.54094.43287.53276.16966.4083-0.0087-0.02650.3086-0.13790.263-0.5618-0.31350.3378-0.19730.1359-0.0050.00480.1180.02440.218856.593531.868880.5954
224.56170.3474-0.00354.4254-0.33572.4729-0.02440.2093-0.2029-0.29480.0321-0.28810.28450.0865-0.010.12020.00730.03540.1212-0.01920.09155.90944.733175.3027
234.11980.0165-0.10624.2403-0.03832.5228-0.022-0.2771-0.22110.36220.0407-0.54050.18930.28620.00820.10590.0238-0.030.1548-0.00050.172859.88559.398882.3337
245.0453.8345-0.63196.4455-0.71840.79670.204-0.5459-0.00021.2086-0.0991-0.198-0.0370.0601-0.06370.3210.0451-0.00090.2013-0.02230.168154.850220.769691.3203
252.71181.31241.19889.58954.59185.60070.0006-0.1219-0.08360.14070.1871-1.1002-0.07990.4406-0.1430.1606-0.0075-0.02960.18150.03790.181938.851549.202638.6751
265.24623.7919-2.60065.7243-3.31254.61070.0091-0.1986-0.52870.00380.22040.64050.7375-0.3613-0.1460.3065-0.01950.00230.17150.07010.481224.235531.723838.119
274.0515-3.1335-1.33168.38393.01282.35260.02040.09620.1211-0.3859-0.08870.043-0.37830.01040.06780.1417-0.0071-0.03040.14080.01280.061128.872660.06334.2764
284.47-0.06920.61964.6611-0.95754.3914-0.09150.35750.332-0.5416-0.21821.0094-0.447-0.61320.04940.2070.0634-0.0820.3246-0.00870.34614.650958.630331.1822
295.5216-0.22870.09855.1547-0.07034.51390.0292-0.54230.17560.73870.01080.4805-0.296-0.53550.1070.19640.02220.05280.19510.02620.171420.261653.380442.9852
303.7111.78950.72134.87730.49991.380.0147-0.7164-0.32730.98670.08210.33140.2588-0.1829-0.06610.33740.02980.03690.27530.10880.210924.732542.886147.3271
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection detailsAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1chain 'A' and (resid 67 through 89 )A67 - 89
2X-RAY DIFFRACTION2chain 'A' and (resid 90 through 108 )A90 - 108
3X-RAY DIFFRACTION3chain 'A' and (resid 109 through 131 )A109 - 131
4X-RAY DIFFRACTION4chain 'A' and (resid 132 through 162 )A132 - 162
5X-RAY DIFFRACTION5chain 'A' and (resid 163 through 186 )A163 - 186
6X-RAY DIFFRACTION6chain 'A' and (resid 187 through 204 )A187 - 204
7X-RAY DIFFRACTION7chain 'A' and (resid 205 through 218 )A205 - 218
8X-RAY DIFFRACTION8chain 'A' and (resid 219 through 232 )A219 - 232
9X-RAY DIFFRACTION9chain 'A' and (resid 240 through 252 )A240 - 252
10X-RAY DIFFRACTION10chain 'A' and (resid 253 through 275 )A253 - 275
11X-RAY DIFFRACTION11chain 'A' and (resid 276 through 301 )A276 - 301
12X-RAY DIFFRACTION12chain 'B' and (resid 67 through 89 )B67 - 89
13X-RAY DIFFRACTION13chain 'B' and (resid 90 through 107 )B90 - 107
14X-RAY DIFFRACTION14chain 'B' and (resid 108 through 131 )B108 - 131
15X-RAY DIFFRACTION15chain 'B' and (resid 132 through 162 )B132 - 162
16X-RAY DIFFRACTION16chain 'B' and (resid 163 through 186 )B163 - 186
17X-RAY DIFFRACTION17chain 'B' and (resid 187 through 252 )B187 - 252
18X-RAY DIFFRACTION18chain 'B' and (resid 253 through 272 )B253 - 272
19X-RAY DIFFRACTION19chain 'B' and (resid 273 through 298 )B273 - 298
20X-RAY DIFFRACTION20chain 'C' and (resid 67 through 89 )C67 - 89
21X-RAY DIFFRACTION21chain 'C' and (resid 90 through 125 )C90 - 125
22X-RAY DIFFRACTION22chain 'C' and (resid 126 through 175 )C126 - 175
23X-RAY DIFFRACTION23chain 'C' and (resid 176 through 230 )C176 - 230
24X-RAY DIFFRACTION24chain 'C' and (resid 231 through 287 )C231 - 287
25X-RAY DIFFRACTION25chain 'D' and (resid 66 through 89 )D66 - 89
26X-RAY DIFFRACTION26chain 'D' and (resid 90 through 125 )D90 - 125
27X-RAY DIFFRACTION27chain 'D' and (resid 126 through 162 )D126 - 162
28X-RAY DIFFRACTION28chain 'D' and (resid 163 through 186 )D163 - 186
29X-RAY DIFFRACTION29chain 'D' and (resid 187 through 218 )D187 - 218
30X-RAY DIFFRACTION30chain 'D' and (resid 219 through 287 )D219 - 287

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