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- PDB-1ct8: CATALYTIC ANTIBODY 7C8 COMPLEX -

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Basic information

Entry
Database: PDB / ID: 1ct8
TitleCATALYTIC ANTIBODY 7C8 COMPLEX
Components
  • 7C8 FAB FRAGMENT; LONG CHAIN
  • 7C8 FAB FRAGMENT; SHORT CHAIN
KeywordsIMMUNE SYSTEM / ABZYME TRANSITION STATE ANALOG
Function / homology
Function and homology information


humoral immune response mediated by circulating immunoglobulin / phagocytosis, recognition / positive regulation of type IIa hypersensitivity / positive regulation of type I hypersensitivity / antibody-dependent cellular cytotoxicity / Fc-gamma receptor I complex binding / phagocytosis, engulfment / immunoglobulin complex, circulating / IgG immunoglobulin complex / immunoglobulin receptor binding ...humoral immune response mediated by circulating immunoglobulin / phagocytosis, recognition / positive regulation of type IIa hypersensitivity / positive regulation of type I hypersensitivity / antibody-dependent cellular cytotoxicity / Fc-gamma receptor I complex binding / phagocytosis, engulfment / immunoglobulin complex, circulating / IgG immunoglobulin complex / immunoglobulin receptor binding / immunoglobulin mediated immune response / positive regulation of phagocytosis / complement activation, classical pathway / antigen binding / B cell differentiation / positive regulation of immune response / antibacterial humoral response / defense response to bacterium / external side of plasma membrane / extracellular space / extracellular region / plasma membrane / cytoplasm
Similarity search - Function
Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulins / Immunoglobulin-like fold ...Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulins / Immunoglobulin-like fold / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Chem-TAA / Immunoglobulin kappa constant / Ig gamma-1 chain C region secreted form
Similarity search - Component
Biological speciesMus musculus (house mouse)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 2.2 Å
AuthorsGigant, B. / Tsumuraya, T. / Fujii, I. / Knossow, M.
CitationJournal: Structure Fold.Des. / Year: 1999
Title: Diverse structural solutions to catalysis in a family of antibodies.
Authors: Gigant, B. / Tsumuraya, T. / Fujii, I. / Knossow, M.
History
DepositionAug 20, 1999Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 10, 1999Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: 7C8 FAB FRAGMENT; SHORT CHAIN
B: 7C8 FAB FRAGMENT; LONG CHAIN
C: 7C8 FAB FRAGMENT; SHORT CHAIN
D: 7C8 FAB FRAGMENT; LONG CHAIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)95,8028
Polymers94,4294
Non-polymers1,3734
Water3,513195
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
C: 7C8 FAB FRAGMENT; SHORT CHAIN
D: 7C8 FAB FRAGMENT; LONG CHAIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)47,9014
Polymers47,2152
Non-polymers6862
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4620 Å2
ΔGint-48 kcal/mol
Surface area18970 Å2
MethodPISA, PQS
3
A: 7C8 FAB FRAGMENT; SHORT CHAIN
B: 7C8 FAB FRAGMENT; LONG CHAIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)47,9014
Polymers47,2152
Non-polymers6862
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4700 Å2
ΔGint-48 kcal/mol
Surface area18940 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)54.558, 65.612, 117.761
Angle α, β, γ (deg.)90.00, 95.56, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Antibody 7C8 FAB FRAGMENT; SHORT CHAIN


Mass: 23546.039 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Mus musculus (house mouse) / References: UniProt: P01837*PLUS
#2: Antibody 7C8 FAB FRAGMENT; LONG CHAIN


Mass: 23668.566 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Mus musculus (house mouse) / References: UniProt: P01868*PLUS
#3: Chemical ChemComp-SO4 / SULFATE ION / Sulfate


Mass: 96.063 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: SO4
#4: Chemical ChemComp-TAA / [4-(2,2,2-TRIFLUORO-ACETYLAMINO)-BENZYL]-PHOSPHONIC ACID MONO-[2-(2,2-DICHLORO-1-HYDROXY-ETHYLAMINO)-3-HYDROXY-1-(4-NITRO-PHENYL)-PROPYL] ESTER


Mass: 590.271 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C20H21Cl2F3N3O8P
#5: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 195 / 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: 2.22 Å3/Da / Density % sol: 44.6 %
Crystal growTemperature: 291 K / Method: hanging drop vapor diffusion; seeding used / pH: 4
Details: 30% (w/V) PEG 8000 200mM Ammonium sulfate, pH 4.0, hanging drop vapor diffusion; seeding used, temperature 291K
Crystal grow
*PLUS
pH: 4 / Method: unknown / Details: used macroseeding
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
15 mg/mlFab11
2150 mM11NaCl
322-26 %(w/v)PEG100012
40.2 Mammonium sulfate12

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Data collection

DiffractionMean temperature: 278 K
Diffraction sourceSource: SYNCHROTRON / Site: LURE / Beamline: DW32 / Wavelength: 0.98
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Apr 8, 1997
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.98 Å / Relative weight: 1
ReflectionResolution: 2.2→14.3 Å / Num. all: 40238 / Num. obs: 40238 / % possible obs: 97.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 2.44 % / Biso Wilson estimate: 28 Å2 / Rmerge(I) obs: 0.066 / Net I/σ(I): 15.2
Reflection shellResolution: 2.2→2.28 Å / Redundancy: 2.2 % / Rmerge(I) obs: 0.253 / % possible all: 95.7
Reflection
*PLUS
Num. measured all: 98277
Reflection shell
*PLUS
% possible obs: 95.7 % / Mean I/σ(I) obs: 5.4

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Processing

Software
NameVersionClassification
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
X-PLOR3.843refinement
RefinementResolution: 2.2→14.3 Å / σ(F): 2 / Stereochemistry target values: Engh & Huber
RfactorNum. reflectionSelection details
Rfree0.275 2034 random
Rwork0.211 --
obs-39941 -
Refinement stepCycle: LAST / Resolution: 2.2→14.3 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6642 0 84 195 6921
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.011
X-RAY DIFFRACTIONx_angle_deg1.75
Software
*PLUS
Name: X-PLOR / Version: 3.843 / Classification: refinement
Refinement
*PLUS
Highest resolution: 2.2 Å / Lowest resolution: 14.3 Å / σ(F): 2 / Rfactor obs: 0.211
Solvent computation
*PLUS
Displacement parameters
*PLUS
LS refinement shell
*PLUS
Rfactor Rfree: 0.368 / Rfactor obs: 0.3

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