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- PDB-8q0p: Crystal Structure of an N-terminal Domain of Variant Surface Glyc... -

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Basic information

Entry
Database: PDB / ID: 8q0p
TitleCrystal Structure of an N-terminal Domain of Variant Surface Glycoprotein 21 (VSG21) of Trypanosome brucei brucei Lister 427
ComponentsVariant surface glycoprotein MITat 1.21
KeywordsMEMBRANE PROTEIN / Variant surface glycoprotein Suramin Trypanosomiasis Glycosylation MEMBRANE PROTEIN
Function / homologyTrypanosome variant surface glycoprotein, A-type, N-terminal domain / Trypanosome variant surface glycoprotein (A-type) / evasion of host immune response / plasma membrane / Variant surface glycoprotein MITat 1.21
Function and homology information
Biological speciesTrypanosoma brucei brucei (eukaryote)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.01 Å
AuthorsZeelen, J.P. / Stebbins, C.E.
Funding support Germany, 1items
OrganizationGrant numberCountry
Helmholtz Association Germany
CitationJournal: Plos Negl Trop Dis / Year: 2023
Title: A structural classification of the variant surface glycoproteins of the African trypanosomey.
Authors: Dakovic, S. / Zeelen, J.P. / Gkeka, A. / Chandra, M. / van Straaten, M. / Foti, K. / Zhong, J. / Vlachou, E.P. / Aresta-Branco, F. / Verdi, J.P. / Papavasiliou, F.N. / Stebbins, C.E.
History
DepositionJul 28, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 13, 2023Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Variant surface glycoprotein MITat 1.21
B: Variant surface glycoprotein MITat 1.21
C: Variant surface glycoprotein MITat 1.21
D: Variant surface glycoprotein MITat 1.21
E: Variant surface glycoprotein MITat 1.21
F: Variant surface glycoprotein MITat 1.21


Theoretical massNumber of molelcules
Total (without water)298,3126
Polymers298,3126
Non-polymers00
Water16,051891
1
A: Variant surface glycoprotein MITat 1.21
B: Variant surface glycoprotein MITat 1.21


Theoretical massNumber of molelcules
Total (without water)99,4372
Polymers99,4372
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6860 Å2
ΔGint-56 kcal/mol
Surface area18900 Å2
2
C: Variant surface glycoprotein MITat 1.21
D: Variant surface glycoprotein MITat 1.21


Theoretical massNumber of molelcules
Total (without water)99,4372
Polymers99,4372
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area7000 Å2
ΔGint-60 kcal/mol
Surface area19130 Å2
3
E: Variant surface glycoprotein MITat 1.21
F: Variant surface glycoprotein MITat 1.21


Theoretical massNumber of molelcules
Total (without water)99,4372
Polymers99,4372
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6990 Å2
ΔGint-57 kcal/mol
Surface area19230 Å2
Unit cell
Length a, b, c (Å)174.329, 84.422, 120.095
Angle α, β, γ (deg.)90.00, 100.89, 90.00
Int Tables number5
Space group name H-MC121

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Components

#1: Protein
Variant surface glycoprotein MITat 1.21


Mass: 49718.664 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Trypanosoma brucei brucei (eukaryote) / Gene: MITat 1.21 / Production host: Trypanosoma brucei brucei (eukaryote) / References: UniProt: Q58NS8
#2: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 891 / 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

Crystal growTemperature: 295 K / Method: vapor diffusion / pH: 7 / Details: 100 mM Tris/HCl, 200 mM CaCL2, 20 % (W/V) PEG 3350

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SLS / Beamline: X06SA / Wavelength: 1 Å
DetectorType: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Apr 13, 2023
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.01→48.53 Å / Num. obs: 111578 / % possible obs: 97.85 % / Redundancy: 7 % / CC1/2: 0.996 / Net I/σ(I): 8.17
Reflection shellResolution: 2.01→2.082 Å / Num. unique obs: 10775 / CC1/2: 0.53 / % possible all: 95.6

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Processing

Software
NameVersionClassification
PHENIX(1.19.2_4158: ???)refinement
pointlessdata scaling
XDSdata reduction
PHENIXphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.01→48.53 Å / SU ML: 0.26 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 25.5 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2194 5579 5 %
Rwork0.1789 --
obs0.1809 111578 97.65 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 2.01→48.53 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms10006 0 0 891 10897
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00510215
X-RAY DIFFRACTIONf_angle_d0.66413936
X-RAY DIFFRACTIONf_dihedral_angle_d5.4381437
X-RAY DIFFRACTIONf_chiral_restr0.0441802
X-RAY DIFFRACTIONf_plane_restr0.0061784
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.01-2.030.36851640.32193100X-RAY DIFFRACTION87
2.03-2.050.33661840.30983501X-RAY DIFFRACTION97
2.05-2.080.3431830.31393465X-RAY DIFFRACTION97
2.08-2.110.3361860.30993566X-RAY DIFFRACTION97
2.11-2.130.34791830.28983468X-RAY DIFFRACTION97
2.13-2.160.30761840.25833503X-RAY DIFFRACTION97
2.16-2.190.28181820.25333478X-RAY DIFFRACTION97
2.19-2.230.27551870.23483540X-RAY DIFFRACTION97
2.23-2.260.30911830.23463477X-RAY DIFFRACTION97
2.26-2.30.2741850.21993509X-RAY DIFFRACTION97
2.3-2.340.26331850.20943508X-RAY DIFFRACTION98
2.34-2.380.26081850.20563522X-RAY DIFFRACTION98
2.38-2.430.29461880.20713558X-RAY DIFFRACTION98
2.43-2.480.26051840.20963526X-RAY DIFFRACTION98
2.48-2.530.24711850.20113519X-RAY DIFFRACTION98
2.53-2.590.27861860.21023520X-RAY DIFFRACTION98
2.59-2.650.24611870.20733549X-RAY DIFFRACTION98
2.65-2.720.26361870.19913559X-RAY DIFFRACTION98
2.72-2.810.22111860.19553540X-RAY DIFFRACTION98
2.81-2.90.24011870.18633545X-RAY DIFFRACTION98
2.9-30.26581890.19493589X-RAY DIFFRACTION98
3-3.120.24191870.18543561X-RAY DIFFRACTION98
3.12-3.260.22881880.19233568X-RAY DIFFRACTION99
3.26-3.430.2321880.18273576X-RAY DIFFRACTION99
3.43-3.650.17371890.15373581X-RAY DIFFRACTION99
3.65-3.930.20061890.15773590X-RAY DIFFRACTION99
3.93-4.320.19591890.13923604X-RAY DIFFRACTION99
4.32-4.950.16251910.1283625X-RAY DIFFRACTION99
4.95-6.230.17931920.15613638X-RAY DIFFRACTION99
6.23-48.530.15961960.14533714X-RAY DIFFRACTION99
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)
13.2646-1.9001-1.51785.0942.45074.8330.07810.7376-0.1828-0.4579-0.1371-0.31770.15470.02350.02420.3190.00190.14360.3916-0.05310.4432-6.0418-35.7844-69.1426
22.0795-0.723-0.98171.22820.59531.48550.0258-0.05440.33250.02870.0582-0.1288-0.12570.0074-0.10090.27730.00890.05940.20390.03170.3722-22.0981-13.4216-46.7133
36.0745-1.7013-2.82763.02630.82492.1041-0.07330.131-0.1223-0.235-0.0193-0.0744-0.01810.20840.12470.3016-0.00530.10890.33920.00530.44762.0366-32.3155-60.8557
42.0566-1.8435-1.81974.03883.19624.855-0.54870.058-0.94330.20350.1251-0.11770.92570.35070.19680.51570.03250.14340.3778-0.0950.5983-11.9029-49.7343-57.5115
52.6178-1.9284-2.35013.6753.00916.061-0.09490.5451-0.5277-0.35790.0495-0.23120.33660.0809-0.04650.406-0.05520.20160.4106-0.15990.5214-11.9527-44.759-66.3381
61.0201-0.3722-0.08822.18980.91291.0759-0.1393-0.23340.01980.39530.1199-0.19350.22250.1101-0.01180.36610.04030.04620.2946-0.00470.3739-21.9785-22.098-34.5637
71.18960.72010.52252.20850.68511.5955-0.06720.2795-0.1205-0.09560.1093-0.00760.1335-0.0560.01830.3453-0.05220.09370.3436-0.02560.3792-25.4479-42.8449-60.8711
85.8584-4.9121-0.44324.15810.3240.3565-0.0196-0.0003-1.41560.0199-0.34532.28120.0911-0.50340.23570.7056-0.05960.19650.6855-0.16571.0385-3.968-15.2344-20.3607
95.6327-2.15990.66424.8427-0.98011.8797-0.0172-0.11820.1994-0.1466-0.01260.6765-0.3787-0.39980.07190.33320.03510.07180.4225-0.0640.4661-7.20241.6163-20.1731
102.7761-1.1536-0.82570.9250.67790.8549-0.08110.0688-0.29170.0414-0.0240.00690.1482-0.05860.08690.3545-0.01440.11180.2921-0.00550.405822.4414-22.2017-23.9339
113.5488-0.8188-1.56182.72580.45651.19250.0052-0.1194-0.15870.0408-0.13610.20530.0733-0.2020.13460.33610.01130.11730.3783-0.040.36292.2073-7.4981-9.044
126.0531-6.81386.20799.0988-5.8068.125-1.076-1.49842.71480.08460.8192-0.9142-1.2991-1.39670.25760.60440.09580.00440.8308-0.08720.965419.819211.0974-21.846
139.4732-6.37320.7375.8458-1.05061.3183-0.1425-0.6820.60590.11740.17840.1474-0.1838-0.1929-0.06370.34830.03070.02190.3363-0.08790.59035.763711.1609-18.3594
143.3988-4.20031.97385.4902-1.63542.72630.16730.11510.1527-0.2606-0.1610.2649-0.0539-0.31090.02520.33820.03480.09270.39770.01370.49815.85633.3565-24.1095
152.6252-1.84940.04122.98380.1650.4557-0.1102-0.13850.11610.21760.0665-0.25140.03940.08920.05060.34220.00390.08940.28440.00570.376635.2027-15.7378-20.3577
164.8852-1.7107-0.61774.9070.15792.4377-0.09430.58220.5584-0.07810.0103-0.035-0.2573-0.20650.07530.2875-0.03890.00570.37580.09150.317112.00094.8603-33.2321
173.92062.7294-0.1885.66022.60864.0266-0.236-0.56590.45610.70490.3661-1.1432-0.54862.7101-0.19570.58920.0249-0.1121.059-0.1180.9175-11.3539-32.7753-15.1453
185.96270.04174.68032.2472-0.51647.52990.2659-0.6119-0.08470.6397-0.1275-0.47020.52250.5464-0.19360.5438-0.0066-0.12910.6162-0.03450.5954-11.8261-40.3927-2.4259
195.2565-0.34143.82792.3942-0.13496.64920.0747-0.7713-0.0390.62490.1659-0.324-0.0917-0.2316-0.05640.5292-0.0041-0.05730.4549-0.03090.5016-21.7472-37.5744-3.7763
202.19920.78841.39620.98570.4192.4323-0.02450.1319-0.1268-0.06590.1403-0.20560.05790.0349-0.12920.3179-0.01270.08120.2701-0.0140.3766-35.5706-41.2968-39.1586
215.03552.3552.53082.58341.41354.23750.1891-0.13020.29160.1235-0.04290.1235-0.44770.33110.12780.4397-0.08830.04860.4491-0.03280.4691-23.8514-26.1387-19.4298
227.94390.60484.42623.86340.6837.7226-0.1056-0.65950.53890.56890.0133-0.2717-0.67540.37310.09620.5232-0.0320.03410.4778-0.07360.4007-23.4512-27.3908-7.5073
235.7287-0.06231.98582.03671.53313.75630.1574-2.8272-1.03760.55410.4231-0.05660.6502-1.6802-0.68110.7787-0.04440.01010.94010.17740.6641-39.1162-50.5179-0.4318
244.96520.5754.92312.23690.13369.24650.1443-0.7505-0.27210.80080.06-0.46470.162-0.1343-0.2390.80150.0199-0.12980.55470.01830.4851-23.4983-45.57036.9994
251.6444-0.56712.57130.8642-1.61676.2336-0.0497-0.25070.17090.19540.1001-0.1024-0.1333-0.3043-0.07010.37120.01960.0280.2896-0.00970.348-38.8882-38.8136-25.6624
263.4971-0.22591.96453.2012-5.11138.9249-0.286-0.44720.15810.61670.25690.1739-0.6579-0.6180.05470.75110.08330.12410.4495-0.07650.5041-40.4266-31.8376-10.8594
271.54980.00740.84820.8371-0.79574.03090.0362-0.0395-0.13550.02540.17890.16820.1016-0.4414-0.22160.3179-0.02980.05960.32040.00030.3433-49.3725-44.7655-30.9478
282.89450.65270.93784.7082-3.29959.06850.2731-0.5897-0.8762-0.01490.40230.29470.8838-0.329-0.55140.49040.03290.00360.34550.08750.4857-36.1744-57.3749-12.1271
292.76770.30521.08352.9284-1.33845.53160.1892-0.3534-0.52060.5172-0.0609-0.48070.48340.4112-0.16060.45270.0305-0.0990.37410.03140.5183-26.3701-55.8263-6.984
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1chain 'A' and (resid 22 through 132 )
2X-RAY DIFFRACTION2chain 'A' and (resid 133 through 250 )
3X-RAY DIFFRACTION3chain 'A' and (resid 251 through 294 )
4X-RAY DIFFRACTION4chain 'B' and (resid 23 through 61 )
5X-RAY DIFFRACTION5chain 'B' and (resid 62 through 132 )
6X-RAY DIFFRACTION6chain 'B' and (resid 133 through 238 )
7X-RAY DIFFRACTION7chain 'B' and (resid 239 through 292 )
8X-RAY DIFFRACTION8chain 'C' and (resid 22 through 34 )
9X-RAY DIFFRACTION9chain 'C' and (resid 35 through 106 )
10X-RAY DIFFRACTION10chain 'C' and (resid 107 through 250 )
11X-RAY DIFFRACTION11chain 'C' and (resid 251 through 294 )
12X-RAY DIFFRACTION12chain 'D' and (resid 23 through 34 )
13X-RAY DIFFRACTION13chain 'D' and (resid 35 through 94 )
14X-RAY DIFFRACTION14chain 'D' and (resid 95 through 132 )
15X-RAY DIFFRACTION15chain 'D' and (resid 133 through 250 )
16X-RAY DIFFRACTION16chain 'D' and (resid 251 through 293 )
17X-RAY DIFFRACTION17chain 'E' and (resid 22 through 34 )
18X-RAY DIFFRACTION18chain 'E' and (resid 35 through 94 )
19X-RAY DIFFRACTION19chain 'E' and (resid 95 through 132 )
20X-RAY DIFFRACTION20chain 'E' and (resid 133 through 238 )
21X-RAY DIFFRACTION21chain 'E' and (resid 239 through 250 )
22X-RAY DIFFRACTION22chain 'E' and (resid 251 through 293 )
23X-RAY DIFFRACTION23chain 'F' and (resid 23 through 34 )
24X-RAY DIFFRACTION24chain 'F' and (resid 35 through 106 )
25X-RAY DIFFRACTION25chain 'F' and (resid 107 through 160 )
26X-RAY DIFFRACTION26chain 'F' and (resid 161 through 170 )
27X-RAY DIFFRACTION27chain 'F' and (resid 171 through 238 )
28X-RAY DIFFRACTION28chain 'F' and (resid 239 through 251 )
29X-RAY DIFFRACTION29chain 'F' and (resid 252 through 293 )

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