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- PDB-6al5: COMPLEX BETWEEN CD19 (N138Q MUTANT) AND B43 FAB -

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Basic information

Entry
Database: PDB / ID: 6al5
TitleCOMPLEX BETWEEN CD19 (N138Q MUTANT) AND B43 FAB
Components
  • B-lymphocyte antigen CD19
  • B43 HEAVY CHAIN
  • B43 LIGHT CHAIN
KeywordsIMMUNE SYSTEM
Function / homology
Function and homology information


regulation of B cell activation / antigen receptor-mediated signaling pathway / B-1 B cell differentiation / regulation of B cell receptor signaling pathway / B cell proliferation involved in immune response / immunoglobulin mediated immune response / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / Regulation of Complement cascade / positive regulation of release of sequestered calcium ion into cytosol / B cell receptor signaling pathway ...regulation of B cell activation / antigen receptor-mediated signaling pathway / B-1 B cell differentiation / regulation of B cell receptor signaling pathway / B cell proliferation involved in immune response / immunoglobulin mediated immune response / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / Regulation of Complement cascade / positive regulation of release of sequestered calcium ion into cytosol / B cell receptor signaling pathway / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / Constitutive Signaling by Aberrant PI3K in Cancer / PIP3 activates AKT signaling / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / membrane raft / external side of plasma membrane / protein-containing complex / extracellular exosome / extracellular region / plasma membrane
Similarity search - Function
B-lymphocyte antigen CD19 / : / : / Immunoglobulin V-Type / Immunoglobulin V-set domain / Immunoglobulin V-set domain / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin subtype / Immunoglobulin ...B-lymphocyte antigen CD19 / : / : / Immunoglobulin V-Type / Immunoglobulin V-set domain / Immunoglobulin V-set domain / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin subtype / Immunoglobulin / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Ig-like domain-containing protein / B-lymphocyte antigen CD19 / IGK@ protein
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3 Å
AuthorsTeplyakov, A. / Obmolova, G. / Gilliland, G.L.
CitationJournal: Proteins / Year: 2018
Title: Crystal structure of B-cell co-receptor CD19 in complex with antibody B43 reveals an unexpected fold.
Authors: Teplyakov, A. / Obmolova, G. / Luo, J. / Gilliland, G.L.
History
DepositionAug 7, 2017Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 28, 2018Provider: repository / Type: Initial release
Revision 1.1May 2, 2018Group: Data collection / Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 2.0Jul 29, 2020Group: Data collection / Derived calculations ...Data collection / Derived calculations / Polymer sequence / Structure summary
Category: chem_comp / entity ...chem_comp / entity / entity_poly / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / struct_conn / struct_site / struct_site_gen
Item: _chem_comp.name / _chem_comp.type ..._chem_comp.name / _chem_comp.type / _entity.pdbx_description / _entity_poly.pdbx_seq_one_letter_code_can / _pdbx_entity_nonpoly.name / _struct_conn.pdbx_role
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Oct 4, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 2.2Nov 13, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: B-lymphocyte antigen CD19
L: B43 LIGHT CHAIN
H: B43 HEAVY CHAIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)78,7855
Polymers78,3433
Non-polymers4422
Water362
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5440 Å2
ΔGint-27 kcal/mol
Surface area31360 Å2
MethodPISA
Unit cell
Length a, b, c (Å)64.800, 92.350, 146.990
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 B-lymphocyte antigen CD19 / B-lymphocyte surface antigen B4 / Differentiation antigen CD19 / T-cell surface antigen Leu-12


Mass: 29302.436 Da / Num. of mol.: 1 / Fragment: EXTRACELLULAR DOMAIN / Mutation: N138Q
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CD19 / Production host: unidentified baculovirus / References: UniProt: P15391
#2: Antibody B43 LIGHT CHAIN


Mass: 23815.260 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: IGK@ / Production host: Homo sapiens (human) / References: UniProt: Q6P5S8
#3: Antibody B43 HEAVY CHAIN


Mass: 25225.055 Da / Num. of mol.: 1 / Fragment: FD
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human) / References: UniProt: A8K008
#4: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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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: 2.82 Å3/Da / Density % sol: 56 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 7.5 / Details: 0.1 M HEPES PH 7.5, 23% PEG 8000 / PH range: 7.5

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 17-ID / Wavelength: 1 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Oct 19, 2015
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 3→30 Å / Num. obs: 18262 / % possible obs: 99.5 % / Observed criterion σ(I): -3 / Redundancy: 6.4 % / Biso Wilson estimate: 59.6 Å2 / Rmerge(I) obs: 0.083 / Net I/σ(I): 18.4
Reflection shellResolution: 3→3.08 Å / Redundancy: 5.8 % / Rmerge(I) obs: 0.496 / Mean I/σ(I) obs: 3.6 / Num. unique obs: 1285 / % possible all: 96.6

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Processing

Software
NameVersionClassification
REFMAC5.8.0049refinement
XDSdata reduction
XDSdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 5i15

5i15


Resolution: 3→20 Å / Cor.coef. Fo:Fc: 0.945 / Cor.coef. Fo:Fc free: 0.897 / SU B: 18.061 / SU ML: 0.327 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.436
RfactorNum. reflection% reflectionSelection details
Rfree0.26302 928 5.1 %RANDOM
Rwork0.18945 ---
obs0.19307 17235 99.2 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso mean: 63.5 Å2
Baniso -1Baniso -2Baniso -3
1--2.92 Å20 Å2-0 Å2
2--3.65 Å2-0 Å2
3----0.73 Å2
Refinement stepCycle: LAST / Resolution: 3→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5033 0 28 2 5063
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0060.0195208
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.1781.9527121
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.3645666
X-RAY DIFFRACTIONr_dihedral_angle_2_deg37.20623.906192
X-RAY DIFFRACTIONr_dihedral_angle_3_deg18.84915749
X-RAY DIFFRACTIONr_dihedral_angle_4_deg15.5751519
X-RAY DIFFRACTIONr_chiral_restr0.0710.2794
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.0213967
X-RAY DIFFRACTIONr_gen_planes_other
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_it4.3948.3352685
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it7.12118.7163344
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it5.0298.4522523
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined10.8197434
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 3→3.076 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.404 71 -
Rwork0.285 1185 -
obs--96.5 %

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