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- PDB-2fkw: Structure of LH2 from Rps. acidophila crystallized in lipidic mes... -

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Basic information

Entry
Database: PDB / ID: 2fkw
TitleStructure of LH2 from Rps. acidophila crystallized in lipidic mesophases
Components(Light-harvesting protein B-800/850, ...) x 2
KeywordsMEMBRANE PROTEIN / PHOTOSYNTHESIS / Light Harvesting Complex B800-B850 / Lipidic Mesophase / crystallization / cubic phase / sponge phase / LDAO / rhodopin glucoside carotenoid
Function / homology
Function and homology information


organelle inner membrane / plasma membrane light-harvesting complex / bacteriochlorophyll binding / photosynthesis, light reaction / electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity / metal ion binding / plasma membrane
Similarity search - Function
Light-harvesting complex / Single alpha-helices involved in coiled-coils or other helix-helix interfaces - #250 / Light-harvesting Protein / Antenna complex, beta subunit, conserved site / Antenna complexes beta subunits signature. / Antenna complex, alpha subunit / Antenna complex, beta domain superfamily / Antenna complex, alpha subunit conserved site / Antenna complexes alpha subunits signature. / Light-harvesting protein B beta chain ...Light-harvesting complex / Single alpha-helices involved in coiled-coils or other helix-helix interfaces - #250 / Light-harvesting Protein / Antenna complex, beta subunit, conserved site / Antenna complexes beta subunits signature. / Antenna complex, alpha subunit / Antenna complex, beta domain superfamily / Antenna complex, alpha subunit conserved site / Antenna complexes alpha subunits signature. / Light-harvesting protein B beta chain / Antenna complex, alpha/beta subunit / Light-harvesting complex / Antenna complex alpha/beta subunit / Single alpha-helices involved in coiled-coils or other helix-helix interfaces / Few Secondary Structures / Irregular / Up-down Bundle / Mainly Alpha
Similarity search - Domain/homology
BACTERIOCHLOROPHYLL A / Rhodopin b-D-glucoside / Light-harvesting protein B-800/850 alpha chain / Light-harvesting protein B-800/850 beta chain
Similarity search - Component
Biological speciesRhodoblastus acidophilus (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.45 Å
AuthorsPapiz, M.Z. / Cherezov, V. / Clogston, J. / Caffrey, M.
CitationJournal: J.Mol.Biol. / Year: 2006
Title: Room to Move: Crystallizing Membrane Proteins in Swollen Lipidic Mesophases
Authors: Cherezov, V. / Clogston, J. / Papiz, M.Z. / Caffrey, M.
History
DepositionJan 5, 2006Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 28, 2006Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Mar 30, 2016Group: Non-polymer description
Revision 1.4Aug 30, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_conn / struct_ncs_dom_lim / 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 / _struct_conn.pdbx_leaving_atom_flag / _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_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: Light-harvesting protein B-800/850, alpha chain
B: Light-harvesting protein B-800/850, beta chain
C: Light-harvesting protein B-800/850, alpha chain
D: Light-harvesting protein B-800/850, beta chain
E: Light-harvesting protein B-800/850, alpha chain
F: Light-harvesting protein B-800/850, beta chain
G: Light-harvesting protein B-800/850, alpha chain
H: Light-harvesting protein B-800/850, beta chain
I: Light-harvesting protein B-800/850, alpha chain
J: Light-harvesting protein B-800/850, beta chain
K: Light-harvesting protein B-800/850, alpha chain
L: Light-harvesting protein B-800/850, beta chain
M: Light-harvesting protein B-800/850, alpha chain
N: Light-harvesting protein B-800/850, beta chain
O: Light-harvesting protein B-800/850, alpha chain
P: Light-harvesting protein B-800/850, beta chain
R: Light-harvesting protein B-800/850, alpha chain
S: Light-harvesting protein B-800/850, beta chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)129,59781
Polymers92,35718
Non-polymers37,24063
Water11,043613
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area110780 Å2
ΔGint-550 kcal/mol
Surface area31950 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)81.443, 126.384, 129.705
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21C
31E
41G
51I
61K
71M
81O
91R
12B
22D
32F
42H
52J
62L
72N
82P
92S
13A
23C
33E
43G
53I
63K
73M
83O
93R
14R
24D
34F
44H
54J
64L
74N
84P
94S

NCS domain segments:

Component-ID: 1 / Refine code: 3

Dom-IDEns-IDBeg auth comp-IDBeg label comp-IDEnd auth comp-IDEnd label comp-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
11CXMCXMLYSLYSAA1 - 501 - 50
21CXMCXMLYSLYSCC1 - 501 - 50
31CXMCXMLYSLYSEE1 - 501 - 50
41CXMCXMLYSLYSGG1 - 501 - 50
51CXMCXMLYSLYSII1 - 501 - 50
61CXMCXMLYSLYSKK1 - 501 - 50
71CXMCXMLYSLYSMM1 - 501 - 50
81CXMCXMLYSLYSOO1 - 501 - 50
91CXMCXMLYSLYSRQ1 - 501 - 50
12ALAALAHISHISBB1 - 411 - 41
22ALAALAHISHISDD1 - 411 - 41
32ALAALAHISHISFF1 - 411 - 41
42ALAALAHISHISHH1 - 411 - 41
52ALAALAHISHISJJ1 - 411 - 41
62ALAALAHISHISLL1 - 411 - 41
72ALAALAHISHISNN1 - 411 - 41
82ALAALAHISHISPP1 - 411 - 41
92ALAALAHISHISSR1 - 411 - 41
13BCLBCLBCLBCLAS - T1501 - 1701
23BCLBCLBCLBCLCY - Z1502 - 1702
33BCLBCLBCLBCLEFA - GA1503 - 1703
43BCLBCLBCLBCLGMA - NA1504 - 1704
53BCLBCLBCLBCLITA - UA1505 - 1705
63BCLBCLBCLBCLKBB - CB1506 - 1706
73BCLBCLBCLBCLMIB - JB1507 - 1707
83BCLBCLBCLBCLOPB - QB1508 - 1708
93BCLBCLBCLBCLRWB - XB1509 - 1709
14RG1RG1RG1RG1RVB1401
24RG1RG1RG1RG1DCA1402
34RG1RG1RG1RG1FJA1403
44RG1RG1RG1RG1HQA1404
54RG1RG1RG1RG1JYA1405
64RG1RG1RG1RG1LFB1406
74RG1RG1RG1RG1NMB1407
84RG1RG1RG1RG1PSB1408
94RG1RG1RG1RG1SBC1409

NCS ensembles :
ID
1
2
3
4
DetailsThe biological assembly is a nonamer which is also the asymmetric unit of the cell.

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Components

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Light-harvesting protein B-800/850, ... , 2 types, 18 molecules ACEGIKMORBDFHJLNPS

#1: Protein
Light-harvesting protein B-800/850, alpha chain / Antenna pigment protein / alpha chain


Mass: 5702.733 Da / Num. of mol.: 9 / Source method: isolated from a natural source / Source: (natural) Rhodoblastus acidophilus (bacteria) / Strain: 10050 / References: UniProt: P26789
#2: Protein/peptide
Light-harvesting protein B-800/850, beta chain / Antenna pigment protein / beta chain


Mass: 4559.203 Da / Num. of mol.: 9 / Source method: isolated from a natural source / Source: (natural) Rhodoblastus acidophilus (bacteria) / Strain: 10050 / References: UniProt: P26790

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Sugars , 1 types, 9 molecules

#5: Sugar
ChemComp-RG1 / Rhodopin b-D-glucoside / (3E)-3,4-didehydro-1',2'-dihydro-psi,psi-caroten-1'-yl beta-D-glucopyranoside


Type: D-saccharide / Mass: 715.013 Da / Num. of mol.: 9 / Source method: obtained synthetically / Formula: C46H66O6

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Non-polymers , 3 types, 667 molecules

#3: Chemical...
ChemComp-BCL / BACTERIOCHLOROPHYLL A / Bacteriochlorophyll


Mass: 911.504 Da / Num. of mol.: 27 / Source method: obtained synthetically / Formula: C55H74MgN4O6
#4: Chemical...
ChemComp-LDA / LAURYL DIMETHYLAMINE-N-OXIDE / Lauryldimethylamine oxide


Mass: 229.402 Da / Num. of mol.: 27 / Source method: obtained synthetically / Formula: C14H31NO / Comment: LDAO, detergent*YM
#6: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 613 / 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: 3.61 Å3/Da / Density % sol: 65.95 %
Crystal growTemperature: 293 K / pH: 8
Details: 200 microlitres of 40 %(w/w) protein, 0.05 %(w/v) LDAO, 20mM Tris/HCl and 60 %(w/w) monoolein mixed with 2 microlitres of precipitant: 20 %(w/v) pentaerythritol propoxylate, 0.1 M potassium ...Details: 200 microlitres of 40 %(w/w) protein, 0.05 %(w/v) LDAO, 20mM Tris/HCl and 60 %(w/w) monoolein mixed with 2 microlitres of precipitant: 20 %(w/v) pentaerythritol propoxylate, 0.1 M potassium formate, 0.1 M Tris/HCl, pH 8.0, Mesophase crystallization, lipidic cubic phase, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: CHESS / Beamline: F1 / Wavelength: 0.9124 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9124 Å / Relative weight: 1
ReflectionResolution: 2.449→90.536 Å / Num. all: 49999 / Num. obs: 49795 / % possible obs: 99.8 % / Redundancy: 3.9 % / Rsym value: 0.066 / Net I/σ(I): 20.9
Reflection shellResolution: 2.45→2.54 Å / Redundancy: 3.7 % / Mean I/σ(I) obs: 2.3 / Num. unique all: 3208 / Rsym value: 0.568 / % possible all: 98.25

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Processing

Software
NameVersionClassification
REFMAC5.2.0005refinement
HKL-2000data reduction
SCALEPACKdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entry 1NKZ
Resolution: 2.45→10 Å / Cor.coef. Fo:Fc: 0.957 / Cor.coef. Fo:Fc free: 0.924 / SU B: 9.103 / SU ML: 0.209 / Cross valid method: THROUGHOUT / ESU R: 0.575 / ESU R Free: 0.294 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.25367 2498 5.1 %RANDOM
Rwork0.18282 ---
obs0.18651 48989 99.78 %-
all-49999 --
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parametersBiso mean: 41.842 Å2
Baniso -1Baniso -2Baniso -3
1-2.97 Å20 Å20 Å2
2---4.14 Å20 Å2
3---1.17 Å2
Refinement stepCycle: LAST / Resolution: 2.45→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6534 0 2682 613 9829
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.030.0219594
X-RAY DIFFRACTIONr_bond_other_d0.0050.029774
X-RAY DIFFRACTIONr_angle_refined_deg1.4142.25913347
X-RAY DIFFRACTIONr_angle_other_deg0.849322401
X-RAY DIFFRACTIONr_dihedral_angle_1_deg8.9635819
X-RAY DIFFRACTIONr_dihedral_angle_2_deg36.17323.2225
X-RAY DIFFRACTIONr_dihedral_angle_3_deg18.04415972
X-RAY DIFFRACTIONr_dihedral_angle_4_deg10.639159
X-RAY DIFFRACTIONr_chiral_restr0.7840.21449
X-RAY DIFFRACTIONr_gen_planes_refined0.0150.029639
X-RAY DIFFRACTIONr_gen_planes_other0.0190.021791
X-RAY DIFFRACTIONr_nbd_refined0.3340.23517
X-RAY DIFFRACTIONr_nbd_other0.2470.212911
X-RAY DIFFRACTIONr_nbtor_refined0.1950.24346
X-RAY DIFFRACTIONr_nbtor_other0.1010.25296
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.3530.2774
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined0.3820.24
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.2320.225
X-RAY DIFFRACTIONr_symmetry_vdw_other0.1750.247
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.3250.226
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it1.261.54277
X-RAY DIFFRACTIONr_mcbond_other0.3191.51737
X-RAY DIFFRACTIONr_mcangle_it2.01626732
X-RAY DIFFRACTIONr_scbond_it2.86635817
X-RAY DIFFRACTIONr_scangle_it4.2174.56561
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
Refine LS restraints NCS

Refine-ID: X-RAY DIFFRACTION

Ens-IDDom-IDAuth asym-IDNumberTypeRms dev position (Å)Weight position
11A292tight positional0.080.05
12C292tight positional0.070.05
13E292tight positional0.080.05
14G292tight positional0.090.05
15I292tight positional0.10.05
16K292tight positional0.080.05
17M292tight positional0.090.05
18O292tight positional0.080.05
19R292tight positional0.090.05
21B242tight positional0.070.05
22D242tight positional0.060.05
23F242tight positional0.080.05
24H242tight positional0.060.05
25J242tight positional0.070.05
26L242tight positional0.070.05
27N242tight positional0.060.05
28P242tight positional0.070.05
29S242tight positional0.070.05
11A468loose positional0.495
12C468loose positional0.545
13E468loose positional0.55
14G468loose positional0.515
15I468loose positional0.635
16K468loose positional0.415
17M468loose positional0.65
18O468loose positional0.475
19R468loose positional0.455
21B387loose positional0.385
22D387loose positional0.455
23F387loose positional0.495
24H387loose positional0.335
25J387loose positional0.455
26L387loose positional0.435
27N387loose positional0.415
28P387loose positional0.435
29S387loose positional0.345
31A423loose positional0.685
32C423loose positional0.695
33E423loose positional0.575
34G423loose positional0.835
35I423loose positional0.675
36K423loose positional0.825
37M423loose positional0.765
38O423loose positional0.735
39R423loose positional0.725
44B115loose positional0.425
42D115loose positional0.475
43F115loose positional0.415
44H115loose positional0.455
45J115loose positional0.315
46L115loose positional0.45
47N115loose positional0.335
48P115loose positional0.435
49S115loose positional0.395
11A292tight thermal0.30.5
12C292tight thermal0.310.5
13E292tight thermal0.260.5
14G292tight thermal0.30.5
15I292tight thermal0.30.5
16K292tight thermal0.30.5
17M292tight thermal0.260.5
18O292tight thermal0.240.5
19R292tight thermal0.310.5
21B242tight thermal0.320.5
22D242tight thermal0.290.5
23F242tight thermal0.340.5
24H242tight thermal0.240.5
25J242tight thermal0.260.5
26L242tight thermal0.40.5
27N242tight thermal0.270.5
28P242tight thermal0.230.5
29S242tight thermal0.310.5
11A468loose thermal2.310
12C468loose thermal1.8710
13E468loose thermal1.7810
14G468loose thermal1.6510
15I468loose thermal2.310
16K468loose thermal1.7710
17M468loose thermal1.6710
18O468loose thermal1.710
19R468loose thermal1.7810
21B387loose thermal2.3610
22D387loose thermal2.7210
23F387loose thermal2.9510
24H387loose thermal2.2410
25J387loose thermal1.9910
26L387loose thermal3.2810
27N387loose thermal1.6910
28P387loose thermal2.4610
29S387loose thermal2.310
31A423loose thermal5.1210
32C423loose thermal2.810
33E423loose thermal5.1710
34G423loose thermal3.5310
35I423loose thermal4.1510
36K423loose thermal4.4910
37M423loose thermal3.2810
38O423loose thermal3.910
39R423loose thermal4.9610
44B115loose thermal2.5810
42D115loose thermal4.4710
43F115loose thermal2.0510
44H115loose thermal3.4610
45J115loose thermal2.7910
46L115loose thermal3.9710
47N115loose thermal3.0810
48P115loose thermal3.6610
49S115loose thermal2.7610
LS refinement shellResolution: 2.45→2.51 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.346 170 -
Rwork0.242 3208 -
obs--98.25 %

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