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- PDB-6fxn: Crystal structure of human BAFF in complex with Fab fragment of a... -

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Basic information

Entry
Database: PDB / ID: 6fxn
TitleCrystal structure of human BAFF in complex with Fab fragment of anti-BAFF antibody belimumab
Components
  • Tumor necrosis factor ligand superfamily member 13B
  • belimumab heavy chain
  • belimumab light chain
KeywordsIMMUNE SYSTEM / Immunology / B cell / cytokine / BAFF / antibody / Proteros
Function / homology
Function and homology information


positive regulation of germinal center formation / B cell costimulation / TNFs bind their physiological receptors / TNF receptor superfamily (TNFSF) members mediating non-canonical NF-kB pathway / transitional one stage B cell differentiation / germinal center formation / tumor necrosis factor receptor binding / skin development / B cell proliferation / B cell homeostasis ...positive regulation of germinal center formation / B cell costimulation / TNFs bind their physiological receptors / TNF receptor superfamily (TNFSF) members mediating non-canonical NF-kB pathway / transitional one stage B cell differentiation / germinal center formation / tumor necrosis factor receptor binding / skin development / B cell proliferation / B cell homeostasis / T cell proliferation / positive regulation of T cell proliferation / positive regulation of B cell proliferation / tumor necrosis factor-mediated signaling pathway / T cell costimulation / cytokine activity / TNFR2 non-canonical NF-kB pathway / receptor ligand activity / intracellular membrane-bounded organelle / focal adhesion / signaling receptor binding / perinuclear region of cytoplasm / signal transduction / extracellular space / extracellular region / membrane / plasma membrane / cytoplasm
Similarity search - Function
TNF(Tumour Necrosis Factor) family / Tumour necrosis factor domain / Tumor necrosis factor (TNF) homology domain (THD) profile. / Jelly Rolls - #40 / Tumour necrosis factor-like domain superfamily / Jelly Rolls / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Tumor necrosis factor ligand superfamily member 13B
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.9 Å
AuthorsLammens, A. / Maskos, K. / Willen, L. / Jiang, X. / Schneider, P.
CitationJournal: Nat Commun / Year: 2018
Title: A loop region of BAFF controls B cell survival and regulates recognition by different inhibitors.
Authors: Vigolo, M. / Chambers, M.G. / Willen, L. / Chevalley, D. / Maskos, K. / Lammens, A. / Tardivel, A. / Das, D. / Kowalczyk-Quintas, C. / Schuepbach-Mallepell, S. / Smulski, C.R. / Eslami, M. / ...Authors: Vigolo, M. / Chambers, M.G. / Willen, L. / Chevalley, D. / Maskos, K. / Lammens, A. / Tardivel, A. / Das, D. / Kowalczyk-Quintas, C. / Schuepbach-Mallepell, S. / Smulski, C.R. / Eslami, M. / Rolink, A. / Hummler, E. / Samy, E. / Fomekong Nanfack, Y. / Mackay, F. / Liao, M. / Hess, H. / Jiang, X. / Schneider, P.
History
DepositionMar 9, 2018Deposition site: PDBE / Processing site: PDBE
SupersessionApr 4, 2018ID: 6ERX
Revision 1.0Apr 4, 2018Provider: repository / Type: Initial release
Revision 1.1Jan 17, 2024Group: Advisory / Data collection ...Advisory / Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_unobs_or_zero_occ_atoms
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Tumor necrosis factor ligand superfamily member 13B
B: Tumor necrosis factor ligand superfamily member 13B
C: Tumor necrosis factor ligand superfamily member 13B
D: belimumab heavy chain
E: belimumab light chain
F: belimumab heavy chain
G: belimumab light chain
H: belimumab heavy chain
I: belimumab light chain
J: Tumor necrosis factor ligand superfamily member 13B
K: Tumor necrosis factor ligand superfamily member 13B
L: Tumor necrosis factor ligand superfamily member 13B
M: belimumab heavy chain
N: belimumab light chain
O: belimumab heavy chain
P: belimumab light chain
Q: belimumab heavy chain
R: belimumab light chain


Theoretical massNumber of molelcules
Total (without water)389,18718
Polymers389,18718
Non-polymers00
Water4,864270
1
A: Tumor necrosis factor ligand superfamily member 13B
B: Tumor necrosis factor ligand superfamily member 13B
C: Tumor necrosis factor ligand superfamily member 13B
D: belimumab heavy chain
E: belimumab light chain
F: belimumab heavy chain
G: belimumab light chain
H: belimumab heavy chain
I: belimumab light chain


Theoretical massNumber of molelcules
Total (without water)194,5939
Polymers194,5939
Non-polymers00
Water1629
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area21980 Å2
ΔGint-119 kcal/mol
Surface area72550 Å2
MethodPISA
2
J: Tumor necrosis factor ligand superfamily member 13B
K: Tumor necrosis factor ligand superfamily member 13B
L: Tumor necrosis factor ligand superfamily member 13B
M: belimumab heavy chain
N: belimumab light chain
O: belimumab heavy chain
P: belimumab light chain
Q: belimumab heavy chain
R: belimumab light chain


Theoretical massNumber of molelcules
Total (without water)194,5939
Polymers194,5939
Non-polymers00
Water1629
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area21760 Å2
ΔGint-123 kcal/mol
Surface area72010 Å2
MethodPISA
Unit cell
Length a, b, c (Å)135.687, 135.499, 138.180
Angle α, β, γ (deg.)90.00, 91.88, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein
Tumor necrosis factor ligand superfamily member 13B / B lymphocyte stimulator / BLyS / B-cell-activating factor / BAFF / Dendritic cell-derived TNF-like ...B lymphocyte stimulator / BLyS / B-cell-activating factor / BAFF / Dendritic cell-derived TNF-like molecule / TNF- and APOL-related leukocyte expressed ligand 1 / TALL-1


Mass: 18394.908 Da / Num. of mol.: 6 / Mutation: H218A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
Gene: TNFSF13B, BAFF, BLYS, TALL1, TNFSF20, ZTNF4, UNQ401/PRO738
Production host: Escherichia coli (E. coli) / References: UniProt: Q9Y275
#2: Antibody
belimumab heavy chain


Mass: 23704.645 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Mus musculus (house mouse)
#3: Antibody
belimumab light chain


Mass: 22764.932 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Mus musculus (house mouse)
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 270 / 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: 3.26 Å3/Da / Density % sol: 62.29 %
Crystal growTemperature: 293 K / Method: vapor diffusion / Details: 9% (w/v) PEG4000, 0.1 M MgCl2, 0.1 M HEPES pH 7.5

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SLS / Beamline: X06SA / Wavelength: 1 Å
DetectorType: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Apr 21, 2016
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.9→138.11 Å / Num. obs: 109365 / % possible obs: 98.7 % / Redundancy: 3.36 % / Net I/σ(I): 11.24
Reflection shellResolution: 2.9→3.15 Å / Mean I/σ(I) obs: 3.05 / Num. unique obs: 23126 / % possible all: 95.4

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Processing

Software
NameClassification
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1KD7 , 7FAB
Resolution: 2.9→138.11 Å / Cor.coef. Fo:Fc: 0.934 / Cor.coef. Fo:Fc free: 0.907 / SU B: 31.652 / SU ML: 0.269 / Cross valid method: THROUGHOUT / ESU R: 1.124 / ESU R Free: 0.328 / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.23128 654 0.6 %RANDOM
Rwork0.19082 ---
obs0.19106 108711 99.01 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso mean: 59.251 Å2
Baniso -1Baniso -2Baniso -3
1-0.89 Å20 Å2-1.56 Å2
2--0.29 Å20 Å2
3----1.08 Å2
Refinement stepCycle: 1 / Resolution: 2.9→138.11 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms25879 0 0 270 26149
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.010.01925944
X-RAY DIFFRACTIONr_bond_other_d0.0030.0223679
X-RAY DIFFRACTIONr_angle_refined_deg1.5241.94835416
X-RAY DIFFRACTIONr_angle_other_deg1.197354474
X-RAY DIFFRACTIONr_dihedral_angle_1_deg7.61653402
X-RAY DIFFRACTIONr_dihedral_angle_2_deg38.68824.684980
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.846153851
X-RAY DIFFRACTIONr_dihedral_angle_4_deg16.3331587
X-RAY DIFFRACTIONr_chiral_restr0.0880.24063
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.02129817
X-RAY DIFFRACTIONr_gen_planes_other0.0020.025746
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it2.2223.90413668
X-RAY DIFFRACTIONr_mcbond_other2.2223.90413667
X-RAY DIFFRACTIONr_mcangle_it3.5716.58217050
X-RAY DIFFRACTIONr_mcangle_other3.5716.58217051
X-RAY DIFFRACTIONr_scbond_it3.1254.1712276
X-RAY DIFFRACTIONr_scbond_other3.1254.1712277
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other4.6896.90318367
X-RAY DIFFRACTIONr_long_range_B_refined6.10534.15225075
X-RAY DIFFRACTIONr_long_range_B_other6.10434.1525070
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.903→2.978 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.314 34 -
Rwork0.333 7410 -
obs--91.2 %
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)
13.1552-2.0008-0.65854.73330.87923.4542-0.03090.0778-0.26360.0676-0.06450.12320.3489-0.21190.09540.0872-0.0543-0.06250.03510.03570.116310.033108.31217.173
22.4586-1.1542-0.28452.92611.39334.65790.08220.35390.0555-0.4577-0.0335-0.0731-0.16210.0821-0.04870.0999-0.005-0.04070.08690.03340.179417.116126.3614.256
35.0213-0.6495-1.89992.66411.02633.59720.0032-0.1666-0.06050.08620.0896-0.4355-0.06570.2643-0.09280.0720.0021-0.10660.0203-0.0170.202828.96120.45523.511
44.2387-0.1116-4.17752.4528-2.55727.4298-0.1322-0.2313-0.09970.35150.41860.5631-0.1697-0.6154-0.28650.19230.0020.01020.6701-0.00120.443-6.517109.72447.198
53.82610.6670.77322.2669-0.56113.1006-0.1122-0.04251.0220.4231-0.07760.3213-0.4362-0.12220.18990.6790.1080.18510.26520.05870.929-6.239107.66579.593
65.0477-1.88352.02583.5814-2.15045.3103-0.2615-1.0162-0.60940.21680.1509-0.01920.4118-0.02020.11070.21270.00490.03340.51170.17050.30912.06996.80749.324
78.7956-1.5481-1.93522.5810.08355.68880.4118-0.20780.33650.463-0.20710.3346-0.3202-0.4029-0.20480.4361-0.11720.08020.10110.03050.4415-2.85591.67784.45
85.6694-3.68912.80166.3067-1.79512.0698-0.1064-0.45260.1950.1170.06760.0781-0.1037-0.16190.03870.0340.0158-0.04260.0819-0.02440.1583-12.642143.0572.739
97.15383.5347-1.02957.4220.33912.17760.1109-0.5082-0.14441.37110.0949-0.31810.52380.1737-0.20580.45980.0935-0.12570.1856-0.02820.1887-42.497142.0234.001
106.3150.35892.59872.13731.16095.14560.23930.1447-0.4961-0.2809-0.1019-0.22170.1950.1238-0.13740.20020.0788-0.06190.04230.00450.1999-13.886124.005-8.069
115.6898-2.9782-1.34688.17892.82813.85240.00010.09730.10850.08570.04210.2969-0.1083-0.1641-0.04210.0984-0.06-0.08150.07750.06720.1487-49.991137.52-10.69
122.43062.76612.11124.81473.71526.41760.1003-0.21240.17030.2059-0.15490.2598-0.0343-0.25970.05470.16830.0577-0.05880.0710.00640.131829.975150.94338.648
132.1544-1.1088-1.61774.3683-1.44848.3764-0.47030.2678-0.34930.3928-0.1060.58151.0177-1.69550.57640.3848-0.33220.18120.5571-0.26370.481931.11181.84837.549
143.7621.9018-1.19076.2620.60262.89-0.03280.1994-0.1017-0.45210.2361-0.3637-0.04580.2675-0.20340.17250.0186-0.05390.1149-0.06460.13541.841151.16720.173
153.411-0.3038-2.44964.79153.60288.6207-0.2606-0.20190.10440.2746-0.06330.13220.18720.2580.32380.1727-0.0597-0.09160.11440.03420.16846.678187.37432.875
162.0854-1.33550.80083.6194-0.59033.4119-0.05650.03430.2289-0.03220.0324-0.0512-0.37780.04680.0240.1001-0.0268-0.06380.0240.02350.100854.657166.78384.992
172.7146-1.22580.74182.918-1.63054.5510.09750.2752-0.0161-0.2417-0.10080.06760.2490.01380.00340.06240.0244-0.07990.0371-0.03660.149249.05148.07671.987
183.74040.05290.86832.8758-0.99192.6095-0.0591-0.05770.1070.10760.21420.5545-0.1307-0.5075-0.1550.11440.0390.01190.10930.05360.169735.897153.97290.42
195.38761.85834.09471.97193.20395.91060.0988-0.0666-0.20250.26690.046-0.1940.42930.2949-0.14480.10210.0312-0.05050.21430.05730.211369.652167.181115.58
206.90410.0702-2.22162.3888-0.09983.7016-0.1210.2219-1.16980.1419-0.1593-0.0250.56550.21020.28020.28840.0853-0.06340.0957-0.10390.4967.806167.677147.178
211.9401-1.6591-0.35195.01862.89617.0772-0.1142-0.20880.21520.0213-0.16710.1139-0.4575-0.30490.28120.1116-0.0129-0.11810.248-0.02950.175350.907178.417116.103
227.2402-1.31681.95152.35990.20835.60370.0811-0.19960.06790.1927-0.0706-0.14220.15660.1925-0.01060.0771-0.0037-0.00640.02660.00560.185863.514183.307152.464
234.01543.1478-1.79485.8451-3.45735.27510.2641-0.5258-0.29270.4625-0.2098-0.0840.1743-0.1509-0.05420.3785-0.0281-0.10490.21240.01570.194635.319124.078106.666
241.1811-0.94820.04132.93042.14986.3914-0.0008-0.3425-0.0109-0.02060.2253-0.5201-0.34081.1149-0.22450.5204-0.3587-0.05630.7513-0.01760.649134.73592.297106.587
254.60031.68270.73946.65890.30232.70310.05010.18760.0434-0.20350.07930.30010.1354-0.545-0.12930.2023-0.0258-0.08580.29590.12840.176323.674122.77988.058
263.4416-0.22070.85764.5673-1.93535.8153-0.0108-0.6972-0.16730.3237-0.1137-0.12490.0474-0.0060.12460.4578-0.3217-0.0160.4739-0.02880.358818.9686.928102.695
275.7791-3.8437-2.94835.71011.0332.0873-0.1436-0.4438-0.18150.14250.14740.05530.0820.2935-0.00370.13370.0013-0.1340.04350.01750.180579.132132.37972.316
285.52463.57090.44656.9833-0.28822.10320.508-0.48670.11021.1579-0.23750.4289-0.26690.1239-0.27040.47610.03310.06560.2263-0.02860.3428109.484133.45873.227
297.03890.6155-1.92613.136-1.0613.76370.24830.37070.3357-0.2653-0.1801-0.1511-0.22240.0298-0.06820.22540.1019-0.01470.06940.02110.172380.363150.960.564
305.0203-2.3890.57826.9419-2.51763.70330.12460.0823-0.0356-0.1969-0.034-0.16960.07240.1467-0.09070.23750.0122-0.02120.0963-0.11280.2953116.467137.06858.127
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1A1 - 500
2X-RAY DIFFRACTION2B1 - 500
3X-RAY DIFFRACTION3C1 - 500
4X-RAY DIFFRACTION4D1 - 123
5X-RAY DIFFRACTION5D124 - 300
6X-RAY DIFFRACTION6E1 - 109
7X-RAY DIFFRACTION7E110 - 300
8X-RAY DIFFRACTION8F1 - 123
9X-RAY DIFFRACTION9F124 - 300
10X-RAY DIFFRACTION10G1 - 109
11X-RAY DIFFRACTION11G110 - 300
12X-RAY DIFFRACTION12H1 - 123
13X-RAY DIFFRACTION13H124 - 300
14X-RAY DIFFRACTION14I1 - 109
15X-RAY DIFFRACTION15I110 - 300
16X-RAY DIFFRACTION16J1 - 500
17X-RAY DIFFRACTION17K1 - 500
18X-RAY DIFFRACTION18L1 - 500
19X-RAY DIFFRACTION19M1 - 123
20X-RAY DIFFRACTION20M124 - 300
21X-RAY DIFFRACTION21N1 - 109
22X-RAY DIFFRACTION22N110 - 300
23X-RAY DIFFRACTION23O1 - 123
24X-RAY DIFFRACTION24O124 - 300
25X-RAY DIFFRACTION25P1 - 109
26X-RAY DIFFRACTION26P110 - 300
27X-RAY DIFFRACTION27Q1 - 123
28X-RAY DIFFRACTION28Q124 - 300
29X-RAY DIFFRACTION29R1 - 109
30X-RAY DIFFRACTION30R110 - 300

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