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- PDB-3ssm: MycE Methyltransferase from the Mycinamycin Biosynthetic Pathway ... -

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Basic information

Entry
Database: PDB / ID: 3ssm
TitleMycE Methyltransferase from the Mycinamycin Biosynthetic Pathway in Complex with Mg and SAH, Crystal form 1
ComponentsMethyltransferase
KeywordsTRANSFERASE / methyltransferase / macrolide / natural product / Rossmann Fold
Function / homology
Function and homology information


mycinamicin VI 2''-O-methyltransferase / mycinamicin VI 2''-O-methyltransferase activity / O-methyltransferase activity / antibiotic biosynthetic process / methylation / protein homotetramerization / magnesium ion binding
Similarity search - Function
Nonspecific Lipid-transfer Protein; Chain A - #30 / Methyltransferase MycE, N-terminal / MycE methyltransferase N-terminal / Methyltransferase domain / Nonspecific Lipid-transfer Protein; Chain A / Vaccinia Virus protein VP39 / S-adenosyl-L-methionine-dependent methyltransferase superfamily / Rossmann fold / 2-Layer Sandwich / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
S-ADENOSYL-L-HOMOCYSTEINE / Mycinamicin VI 2''-O-methyltransferase
Similarity search - Component
Biological speciesMicromonospora griseorubida (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / SAD / Resolution: 2.247 Å
AuthorsAkey, D.L. / Smith, J.L.
CitationJournal: J.Mol.Biol. / Year: 2011
Title: A new structural form in the SAM/metal-dependent o‑methyltransferase family: MycE from the mycinamicin biosynthetic pathway.
Authors: Akey, D.L. / Li, S. / Konwerski, J.R. / Confer, L.A. / Bernard, S.M. / Anzai, Y. / Kato, F. / Sherman, D.H. / Smith, J.L.
History
DepositionJul 8, 2011Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 24, 2011Provider: repository / Type: Initial release
Revision 1.1Dec 28, 2011Group: Database references
Revision 1.2Nov 12, 2014Group: Structure summary
Revision 1.3Nov 8, 2017Group: Refinement description / Category: software / Item: _software.name
Revision 1.4Feb 28, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Methyltransferase
B: Methyltransferase
C: Methyltransferase
D: Methyltransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)189,36910
Polymers188,1424
Non-polymers1,2266
Water15,223845
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area23440 Å2
ΔGint-107 kcal/mol
Surface area53750 Å2
MethodPISA
Unit cell
Length a, b, c (Å)73.914, 143.407, 84.641
Angle α, β, γ (deg.)90.000, 105.600, 90.000
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein
Methyltransferase


Mass: 47035.613 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Micromonospora griseorubida (bacteria) / Gene: mycE / Plasmid: pET28b / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)
References: UniProt: Q83WF2, Transferases; Transferring one-carbon groups; Methyltransferases
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-SAH / S-ADENOSYL-L-HOMOCYSTEINE


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


Mass: 18.015 Da / Num. of mol.: 845 / Source method: isolated from a natural source / Formula: H2O

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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: 2.3 Å3/Da / Density % sol: 46.44 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: 20%-25% PEG 3350, 0.15 M NaCl, 0.1 M Bis-Tris, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 23-ID-D / Wavelength: 0.97934 Å
DetectorType: MARMOSAIC 300 mm CCD / Detector: CCD / Date: Jul 16, 2010
RadiationMonochromator: double crystal monochromator / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97934 Å / Relative weight: 1
ReflectionRedundancy: 20.4 % / Av σ(I) over netI: 13.4 / Number: 1058098 / Rmerge(I) obs: 0.182 / Χ2: 1.64 / D res high: 2.6 Å / D res low: 50 Å / Num. obs: 51769 / % possible obs: 100
Diffraction reflection shell
Highest resolution (Å)Lowest resolution (Å)% possible obs (%)IDRmerge(I) obsChi squaredRedundancy
5.65010010.0791.79421.2
4.455.610010.1062.05221.4
3.884.4510010.1252.05321.3
3.533.8810010.1621.92821.4
3.283.5310010.2281.76221.4
3.083.2810010.3191.51421.4
2.933.0810010.4261.39521.4
2.82.9310010.5951.29621.4
2.692.810010.7871.23420
2.62.6910010.9981.18413.5
ReflectionResolution: 2.247→81.523 Å / Num. all: 80361 / Num. obs: 80345 / % possible obs: 100 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.9 % / Biso Wilson estimate: 35.4 Å2 / Rmerge(I) obs: 0.087 / Χ2: 0.904 / Net I/σ(I): 7.8
Reflection shell
Resolution (Å)Redundancy (%)Rmerge(I) obsNum. unique allΧ2Diffraction-ID% possible all
2.247-2.333.90.61480211.0471100
2.33-2.423.90.50679841.0181100
2.42-2.533.90.39880081.0081100
2.53-2.673.90.28980271.0011100
2.67-2.833.90.21580261.0141100
2.83-3.053.90.14579821.0231100
3.05-3.363.90.09580540.9391100
3.36-3.853.90.05880480.7761100
3.85-4.853.90.04580340.7641100
4.85-503.90.03181610.46199.9

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Phasing

PhasingMethod: SAD
Phasing dmFOM : 0.32 / FOM acentric: 0.32 / FOM centric: 0.33 / Reflection: 50213 / Reflection acentric: 48971 / Reflection centric: 1242
Phasing dm shell
Resolution (Å)FOM FOM acentricFOM centricReflectionReflection acentricReflection centric
7.4-500.770.780.6622672103164
4.6-7.40.610.610.4769206658262
3.7-4.60.530.540.4186668433233
3.2-3.70.320.320.2886418455186
2.8-3.20.140.140.11522614959267
2.6-2.80.070.070.0584938363130

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Processing

Software
NameVersionClassificationNB
SCALEPACKdata scaling
SOLVE2.13phasing
RESOLVE2.15phasing
REFMACrefinement
PDB_EXTRACT3.1data extraction
HKL-2000data collection
DENZOdata reduction
HKL-2000data scaling
RefinementMethod to determine structure: SAD / Resolution: 2.247→81.52 Å / Cor.coef. Fo:Fc: 0.962 / Cor.coef. Fo:Fc free: 0.942 / WRfactor Rfree: 0.2135 / WRfactor Rwork: 0.1659 / Occupancy max: 1 / Occupancy min: 0.5 / FOM work R set: 0.8753 / SU B: 11.974 / SU ML: 0.135 / SU R Cruickshank DPI: 0.2719 / SU Rfree: 0.1973 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.272 / ESU R Free: 0.197 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : WITH TLS ADDED
RfactorNum. reflection% reflectionSelection details
Rfree0.2098 4019 5 %RANDOM
Rwork0.1649 ---
obs0.1672 76211 99.47 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso max: 183.06 Å2 / Biso mean: 41.7704 Å2 / Biso min: 14.19 Å2
Baniso -1Baniso -2Baniso -3
1--0.21 Å20 Å20.46 Å2
2---0.89 Å20 Å2
3---1.35 Å2
Refinement stepCycle: LAST / Resolution: 2.247→81.52 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms11915 0 81 845 12841
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0070.02112315
X-RAY DIFFRACTIONr_angle_refined_deg1.0291.9616707
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.20151488
X-RAY DIFFRACTIONr_dihedral_angle_2_deg38.09322.798629
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.702151947
X-RAY DIFFRACTIONr_dihedral_angle_4_deg19.49715123
X-RAY DIFFRACTIONr_chiral_restr0.070.21767
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.0219666
X-RAY DIFFRACTIONr_mcbond_it1.0833.57437
X-RAY DIFFRACTIONr_mcangle_it1.812511976
X-RAY DIFFRACTIONr_scbond_it1.2613.54878
X-RAY DIFFRACTIONr_scangle_it1.84754731
LS refinement shellResolution: 2.247→2.306 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.291 264 -
Rwork0.223 5361 -
all-5625 -
obs--94.41 %
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)
11.64590.22660.46030.84190.33272.00760.075-0.20190.06120.2414-0.0940.2564-0.0005-0.00050.0190.1201-0.02210.07990.044-0.02140.0988-1.384151.68255.991
233.4991-19.746817.169326.9216-13.09729.4917-1.5422-1.75412.92742.16920.0489-1.9198-1.31760.47071.49330.6107-0.6526-0.21482.137-0.13740.2818.721155.96472.655
30.07370.2338-0.01821.61860.58690.9044-0.0031-0.0599-0.0490.13750.05590.0045-0.00390.1563-0.05280.12220.00610.02490.18390.00640.16635.77131.59751.29
40.62760.1535-0.48152.03910.04781.14020.00470.0374-0.08760.0992-0.03450.32780.0911-0.12850.02980.0189-0.02730.00720.0516-0.0150.2044-12.006122.47542.245
50.9475-0.3417-0.13951.43420.39722.13760.04460.3305-0.3494-0.4955-0.00010.333-0.0143-0.1162-0.04440.2327-0.0631-0.09420.1972-0.15050.2382-4.634118.0716.153
61.74540.1208-0.01394.28830.15892.206-0.07180.27440.0572-0.80720.1860.61520.0856-0.1045-0.11420.1932-0.0405-0.19020.1120.01680.2131-12.703142.32417.458
73.7561-1.25854.01913.39987.463512.45270.09790.7401-0.5169-1.7468-0.17810.07010.18050.3060.08020.9133-0.19010.13750.4967-0.13570.4322-5.166131.3472.898
87.38631.40792.7740.8131-0.07516.8074-0.15990.7996-0.556-0.28370.4133-0.5698-0.32210.7903-0.25350.4337-0.06290.14320.4303-0.34770.54666.625149.5617.598
92.1230.09960.47752.38350.02841.32930.02070.19760.1929-0.26410.02950.1387-0.22420.0724-0.05010.09470.0029-0.01110.04190.01920.08953.349164.0327.799
102.2949-0.08011.43471.2444-0.12241.81230.0085-0.27260.22270.2362-0.0573-0.0189-0.19330.00960.04880.1279-0.08110.02760.0941-0.04440.051919.721164.59249.254
112.1870.7425-0.47191.9085-0.39831.90960.12-0.1418-0.25610.294-0.0742-0.28090.07520.1849-0.04580.09030.0428-0.06340.07830.0270.161824.244119.58648.17
1211.34420.0971-5.090912.0831-0.307613.42920.3172-1.4195-1.07222.19630.09890.92920.6263-0.8947-0.41610.4946-0.14940.04970.52790.18640.29827.489111.41964.233
130.201-0.1188-0.00373.91880.42450.09390.0373-0.066-0.04610.4444-0.06930.08490.06320.08870.03190.1307-0.01050.01890.19420.04060.111417.773140.43552.42
140.71720.47170.01732.56870.51050.65280.0774-0.0275-0.0470.30030.0126-0.3352-0.00640.2274-0.090.0499-0.0433-0.0560.1741-0.0040.11533.153149.7846.246
151.3702-1.08310.69043.04543.19826.34260.11180.30950.1399-0.67380.0189-0.2212-0.99740.6409-0.13070.2473-0.14350.04530.22140.00730.122427.855157.46229.577
160.6369-0.1661-0.23482.43-0.9182.048-0.06690.2022-0.0654-0.310.0371-0.18820.04650.00350.02990.0627-0.04960.05190.2063-0.02740.058429.569140.50514.026
172.5877-0.97130.43579.2403-5.36017.64580.14480.2750.38750.00730.00870.4354-1.0686-0.7871-0.15340.31420.14480.00890.26970.01230.099221.717155.6976.391
1810.20372.8298-2.61313.3063-0.93421.3905-0.18231.10910.2515-1.0136-0.10020.088-0.0259-0.30120.28250.50040.0652-0.03910.28920.03160.2874.32129.92614.381
192.07231.0401-0.12492.60710.38091.1181-0.18630.3896-0.2006-0.50650.18930.0520.14470.1238-0.0030.1597-0.01810.00170.1156-0.07390.075512.295115.95616.902
201.62720.0564-1.29881.16940.07512.8055-0.1289-0.0834-0.37890.0193-0.01950.05220.42230.1790.14840.10590.0104-0.00040.01730.00460.21261.335108.60239.874
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1A6 - 128
2X-RAY DIFFRACTION2A129 - 142
3X-RAY DIFFRACTION3A143 - 190
4X-RAY DIFFRACTION4A191 - 363
5X-RAY DIFFRACTION5A364 - 395
6X-RAY DIFFRACTION6B6 - 132
7X-RAY DIFFRACTION7B133 - 156
8X-RAY DIFFRACTION8B157 - 182
9X-RAY DIFFRACTION9B183 - 326
10X-RAY DIFFRACTION10B327 - 397
11X-RAY DIFFRACTION11C6 - 127
12X-RAY DIFFRACTION12C128 - 147
13X-RAY DIFFRACTION13C148 - 187
14X-RAY DIFFRACTION14C188 - 337
15X-RAY DIFFRACTION15C338 - 382
16X-RAY DIFFRACTION16D5 - 127
17X-RAY DIFFRACTION17D128 - 160
18X-RAY DIFFRACTION18D161 - 185
19X-RAY DIFFRACTION19D186 - 320
20X-RAY DIFFRACTION20D321 - 397

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