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- PDB-2gek: Crystal Structure of phosphatidylinositol mannosyltransferase (Pi... -

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Basic information

Entry
Database: PDB / ID: 2gek
TitleCrystal Structure of phosphatidylinositol mannosyltransferase (PimA) from Mycobacterium smegmatis in complex with GDP
ComponentsPHOSPHATIDYLINOSITOL MANNOSYLTRANSFERASE (PimA)
KeywordsTRANSFERASE / GT4 GLYCOSYLTRANSFERASE / MANNOSYLTRANSFERASE / ROSSMANN FOLD / BINARY COMPLEX
Function / homology
Function and homology information


GDP-Man:Man3GlcNAc2-PP-Dol alpha-1,2-mannosyltransferase activity / phosphatidyl-myo-inositol alpha-mannosyltransferase / phosphatidylinositol alpha-mannosyltransferase activity / glycolipid biosynthetic process / phosphatidylinositol metabolic process / phospholipid biosynthetic process / plasma membrane
Similarity search - Function
Glycosyltransferase Family 4 / Glycosyltransferase subfamily 4-like, N-terminal domain / Glycosyl transferases group 1 / Glycogen Phosphorylase B; / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
GUANOSINE-5'-DIPHOSPHATE / Phosphatidyl-myo-inositol mannosyltransferase
Similarity search - Component
Biological speciesMycobacterium smegmatis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MAD / Resolution: 2.4 Å
AuthorsGuerin, M.E. / Buschiazzo, A. / Kordulakova, J. / Jackson, M. / Alzari, P.M.
Citation
Journal: J.Biol.Chem. / Year: 2007
Title: Molecular recognition and interfacial catalysis by the essential phosphatidylinositol mannosyltransferase PimA from mycobacteria.
Authors: Guerin, M.E. / Kordulakova, J. / Schaeffer, F. / Svetlikova, Z. / Buschiazzo, A. / Giganti, D. / Gicquel, B. / Mikusova, K. / Jackson, M. / Alzari, P.M.
#1: Journal: Acta Crystallogr.,Sect.F / Year: 2005
Title: Crystallization and preliminary crystallographic analysis of PimA, an essential mannosyltransferase from Mycobacterium smegmatis
Authors: Guerin, M.E. / Buschiazzo, A. / Kordulakova, J. / Jackson, M. / Alzari, P.M.
#2: Journal: J.Biol.Chem. / Year: 2002
Title: Definition of the first mannosylation step in phosphatidylinositol mannoside synthesis
Authors: Kordulakova, J. / Gilleron, M. / Mikusova, K. / Puzo, G. / Brennan, P.J. / Gicquel, B. / Jackson, M.
#3: Journal: Mol.Microbiol. / Year: 2004
Title: Mycbacterial lipoarabinomannan and related lipoglycans: from biogenesis to modulation of the immune response
Authors: Briken, V. / Porcelli, S.A. / Besra, G.S. / Kremer, L.
#4: Journal: Biochimie / Year: 2003
Title: Lipoarabinomannans: from structure to biosynthesis
Authors: Nigou, J. / Gilleron, M. / Puzo, G.
#5: Journal: J.Mol.Biol. / Year: 2003
Title: An evolving hierarchical family classification for glycosyltransferases
Authors: Coutinho, P.M. / Deleury, E. / Davies, G.J. / Henrissat, B.
History
DepositionMar 20, 2006Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 3, 2007Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Advisory / Source and taxonomy / Version format compliance
Revision 1.3Feb 14, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Remark 999SEQUENCE NO SUITABLE SEQUENCE DATABSE REFERENCE WAS AVAILABLE AT THE TIME OF PROCESSING THIS FILE.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: PHOSPHATIDYLINOSITOL MANNOSYLTRANSFERASE (PimA)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)43,8832
Polymers43,4401
Non-polymers4431
Water88349
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)37.176, 72.425, 138.230
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein PHOSPHATIDYLINOSITOL MANNOSYLTRANSFERASE (PimA)


Mass: 43440.289 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mycobacterium smegmatis (bacteria) / Strain: MC2 155 / Gene: PIMA / Plasmid: PET14B / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 (DE3) pLysS / References: UniProt: A0QWG6
#2: Chemical ChemComp-GDP / GUANOSINE-5'-DIPHOSPHATE / Guanosine diphosphate


Type: RNA linking / Mass: 443.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O11P2 / Comment: GDP, energy-carrying molecule*YM
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 49 / 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: 2

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Sample preparation

CrystalDensity Matthews: 2.25 Å3/Da / Density % sol: 45.42 %
Crystal growTemperature: 291 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: 10 MG/ML PIMA, 1 mM GDP, 10-18% PEG 8000, 200 mM CALCIUM ACETATE, 50 mM HEPES pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K

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Data collection

Diffraction
IDMean temperature (K)Crystal-ID
11001
21001
31
1,21
Diffraction source
SourceSiteBeamlineIDWavelength (Å)
SYNCHROTRONESRF ID14-110.934
SYNCHROTRONSLS X06SA20.979106, 0.979261, 0.97181
Detector
TypeIDDetectorDate
ADSC QUANTUM 41CCDJun 13, 2004
MARRESEARCH2CCDJul 31, 2005
Radiation
IDMonochromatorProtocolMonochromatic (M) / Laue (L)Scattering typeWavelength-ID
1DIAMOND (111), GE (220)SINGLE WAVELENGTHMx-ray1
2LN2 COOLED FIXED-EXIT Si(111)MADMx-ray1
Radiation wavelength
IDWavelength (Å)Relative weight
10.9341
20.9791061
30.9792611
40.971811
Reflection

% possible obs: 100

Redundancy (%)IDAv σ(I) over netINumberRmerge(I) obsRsym valueD res high (Å)D res low (Å)Num. obs
14.215.3784790.1150.1153.472.9325527
6.627.3526900.080.08372.1698000
6.537.4522980.0840.084372.1698023
Diffraction reflection shell
Highest resolution (Å)Lowest resolution (Å)Num. obs% possible obs (%)IDRmerge(I) obsRsym valueRedundancy
10.7573.0222299.810.0640.06411.2
7.610.7534510010.0630.06313.2
6.217.642210010.0940.09413.7
5.386.2150010010.1180.11814.1
4.815.3856510010.1080.10814.3
4.394.8162310010.1070.10714.4
4.064.3963910010.1160.11614.6
3.84.0670010010.1430.14314.6
3.583.874510010.1810.18114.6
3.43.5876610010.2380.23814.6
9.4972.1730799.220.0350.0355.4
6.719.4950099.920.0420.0426.2
5.486.7161910020.0830.0836.4
4.745.4871610020.0720.0726.5
4.244.7479410020.0680.0686.6
3.874.2490310020.0740.0746.6
3.593.8794510020.0950.0956.7
3.353.59100510020.1260.1266.8
3.163.35107810020.1760.1766.8
33.16113310020.2560.2566.7
9.4972.1731099.830.0330.0335.3
6.719.4950310030.040.046.1
5.486.7161910030.0820.0826.4
4.745.4871810030.0720.0726.5
4.244.7479610030.0650.0656.6
3.874.2490410030.0740.0746.6
3.593.8794610030.1020.1026.7
3.353.59101110030.1460.1466.7
3.163.35108310030.2220.2226.6
33.16113310030.340.346.6
ReflectionResolution: 2.4→37.165 Å / Num. all: 15229 / Num. obs: 15229 / % possible obs: 99.7 % / Observed criterion σ(F): 1 / Observed criterion σ(I): 1 / Redundancy: 3.4 % / Rmerge(I) obs: 0.058 / Rsym value: 0.058 / Net I/σ(I): 9
Reflection shellResolution: 2.4→2.53 Å / % possible obs: 100 % / Redundancy: 3.4 % / Rmerge(I) obs: 0.313 / Mean I/σ(I) obs: 2.4 / Num. measured all: 7327 / Num. unique obs: 2175 / Rsym value: 0.313 / % possible all: 100

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Phasing

PhasingMethod: MAD
Phasing MADD res high: 3.5 Å / D res low: 69.96 Å / FOM acentric: 0.727 / FOM centric: 0.603 / Reflection acentric: 4015 / Reflection centric: 1053
Phasing MAD set
IDHighest resolution (Å)Lowest resolution (Å)Power acentricPower centricReflection acentricReflection centric
ISO_13.569.960040151053
ISO_23.569.961.2981.0540151042
ISO_33.569.961.861.38640151036
ANO_13.569.962.092040150
ANO_23.569.960.978040140
ANO_33.569.960.84040130
Phasing MAD set shell
IDResolution (Å)Power acentricPower centricReflection acentricReflection centric
ISO_112.43-69.96005973
ISO_18.86-12.430013671
ISO_17.26-8.860018880
ISO_16.29-7.260023079
ISO_15.63-6.290027387
ISO_15.14-5.630029587
ISO_14.76-5.140032681
ISO_14.46-4.760035184
ISO_14.2-4.460038771
ISO_13.99-4.20041086
ISO_13.8-3.990042584
ISO_13.64-3.80045985
ISO_13.5-3.640047685
ANO_112.43-69.965.0380590
ANO_18.86-12.433.97801360
ANO_17.26-8.864.13701880
ANO_16.29-7.263.93402300
ANO_15.63-6.293.23402730
ANO_15.14-5.632.68302950
ANO_14.76-5.142.35203260
ANO_14.46-4.762.03903510
ANO_14.2-4.461.77403870
ANO_13.99-4.21.47904100
ANO_13.8-3.991.34904250
ANO_13.64-3.81.12404590
ANO_13.5-3.640.98204760
ISO_212.43-69.963.141.9815971
ISO_28.86-12.432.0811.72213671
ISO_27.26-8.862.2991.60618880
ISO_26.29-7.262.5091.81323079
ISO_25.63-6.292.07127384
ISO_25.14-5.631.6741.13829586
ISO_24.76-5.141.3560.92332681
ISO_24.46-4.761.180.90835184
ISO_24.2-4.460.9890.68138771
ISO_23.99-4.20.950.5241086
ISO_23.8-3.990.7810.50142583
ISO_23.64-3.80.7530.46545983
ISO_23.5-3.640.7020.44247683
ANO_212.43-69.962.7570590
ANO_28.86-12.431.82401360
ANO_27.26-8.862.30101880
ANO_26.29-7.261.76302300
ANO_25.63-6.291.302730
ANO_25.14-5.631.20202950
ANO_24.76-5.140.96203260
ANO_24.46-4.760.91503500
ANO_24.2-4.460.80503870
ANO_23.99-4.20.68204100
ANO_23.8-3.990.68404250
ANO_23.64-3.80.53604590
ANO_23.5-3.640.48804760
ISO_312.43-69.964.6653.375973
ISO_38.86-12.433.2992.74813671
ISO_37.26-8.863.6982.21218880
ISO_36.29-7.263.5872.03623077
ISO_35.63-6.292.971.37927384
ISO_35.14-5.632.5991.22129584
ISO_34.76-5.142.0991.14732681
ISO_34.46-4.761.8461.11735181
ISO_34.2-4.461.6070.9838771
ISO_33.99-4.21.3790.78741085
ISO_33.8-3.991.1640.71542583
ISO_33.64-3.80.9480.5145982
ISO_33.5-3.640.8730.56647684
ANO_312.43-69.961.4210590
ANO_38.86-12.431.37101360
ANO_37.26-8.861.50301880
ANO_36.29-7.261.39502300
ANO_35.63-6.291.19902730
ANO_35.14-5.630.97202950
ANO_34.76-5.140.92403260
ANO_34.46-4.760.79903510
ANO_34.2-4.460.86203870
ANO_33.99-4.20.64404100
ANO_33.8-3.990.57804240
ANO_33.64-3.80.4404590
ANO_33.5-3.640.40704750
Phasing MAD set site
IDCartn x (Å)Cartn y (Å)Cartn z (Å)Atom type symbolB isoOccupancy
11.54243.22212.241SE37.511.36
2-4.07746.41844.688SE86.811.46
37.18332.69433.097SE61.221.01
45.66236.7693.537SE107.741.53
5-1.46136.55145.389SE116.711.32
67.40842.99435.091SE01.68
77.72335.6616.759SE60.310.85
821.07340.22910.654SE48.120.67
96.92658.13555.191SE181.251.41
Phasing MAD shell
Resolution (Å)FOM acentricFOM centricReflection acentricReflection centric
12.43-69.960.9230.8325973
8.86-12.430.8970.78113671
7.26-8.860.9170.76618880
6.29-7.260.9140.81423079
5.63-6.290.8930.65827387
5.14-5.630.8520.64129587
4.76-5.140.8030.57932681
4.46-4.760.7890.60635184
4.2-4.460.7430.63338771
3.99-4.20.6850.46641086
3.8-3.990.6030.4442584
3.64-3.80.5680.34645985
3.5-3.640.5050.36947685
Phasing MRRfactor: 0.397 / Cor.coef. Fo:Fc: 0.582 / Cor.coef. Io to Ic: 0.536
Highest resolutionLowest resolution
Rotation4 Å15 Å
Translation4 Å15 Å

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Processing

Software
NameVersionClassificationNB
SCALAdata scaling
AMoREphasing
SHARPphasing
SOLOMONphasing
REFMACrefinement
PDB_EXTRACT1.701data extraction
MOSFLMdata reduction
CCP4(SCALA)data scaling
RefinementMethod to determine structure: MAD / Resolution: 2.4→29.827 Å / Cor.coef. Fo:Fc: 0.949 / Cor.coef. Fo:Fc free: 0.908 / SU B: 18.435 / SU ML: 0.213 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.437 / ESU R Free: 0.281 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.259 1090 7.2 %RANDOM
Rwork0.191 ---
all0.196 15202 --
obs0.196 15202 99.47 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 36.819 Å2
Baniso -1Baniso -2Baniso -3
1-1.21 Å20 Å20 Å2
2---0.94 Å20 Å2
3----0.26 Å2
Refinement stepCycle: LAST / Resolution: 2.4→29.827 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2656 0 28 49 2733
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0170.0222739
X-RAY DIFFRACTIONr_angle_refined_deg1.8571.9743736
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.6945359
X-RAY DIFFRACTIONr_dihedral_angle_2_deg38.63422.897107
X-RAY DIFFRACTIONr_dihedral_angle_3_deg18.44615404
X-RAY DIFFRACTIONr_dihedral_angle_4_deg19.2261521
X-RAY DIFFRACTIONr_chiral_restr0.1230.2432
X-RAY DIFFRACTIONr_gen_planes_refined0.0070.022078
X-RAY DIFFRACTIONr_nbd_refined0.2330.21165
X-RAY DIFFRACTIONr_nbtor_refined0.3070.21810
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1790.2106
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.2410.225
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.1530.24
X-RAY DIFFRACTIONr_mcbond_it0.8631.51838
X-RAY DIFFRACTIONr_mcangle_it1.27922841
X-RAY DIFFRACTIONr_scbond_it2.26331033
X-RAY DIFFRACTIONr_scangle_it3.4264.5895
LS refinement shellResolution: 2.4→2.462 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.41 68 -
Rwork0.235 1040 -
obs-1108 99.82 %
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)
13.5829-1.54460.85054.6285-0.6843.8028-0.00570.1579-0.1862-0.02870.09850.0543-0.02280.0133-0.0929-0.3619-0.0085-0.0286-0.1529-0.0048-0.2163-5.04840.02211.575
23.6694-0.48790.13923.46640.87137.8955-0.1633-0.31240.14651.03390.1551-0.2415-0.13760.17160.00820.20890.051-0.2365-0.2013-0.0148-0.11933.73940.58940.362
Refinement TLS group

Refine-ID: X-RAY DIFFRACTION / Selection: ALL / Auth asym-ID: A / Label asym-ID: A

IDRefine TLS-IDAuth seq-IDLabel seq-ID
111 - 16921 - 189
21349 - 371369 - 391
32170 - 348190 - 368

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