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- PDB-1pga: TWO CRYSTAL STRUCTURES OF THE B1 IMMUNOGLOBULIN-BINDING DOMAIN OF... -

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Basic information

Entry
Database: PDB / ID: 1pga
TitleTWO CRYSTAL STRUCTURES OF THE B1 IMMUNOGLOBULIN-BINDING DOMAIN OF STREPTOCOCCAL PROTEIN G AND COMPARISON WITH NMR
ComponentsPROTEIN G
KeywordsIMMUNOGLOBULIN BINDING PROTEIN
Function / homology
Function and homology information


IgG binding / extracellular region
Similarity search - Function
IgG-binding B / B domain / M protein-type anchor domain / GA-like domain / GA-like domain / Ubiquitin-like (UB roll) - #10 / Immunoglobulin/albumin-binding domain superfamily / YSIRK Gram-positive signal peptide / LPXTG cell wall anchor motif / Gram-positive cocci surface proteins LPxTG motif profile. ...IgG-binding B / B domain / M protein-type anchor domain / GA-like domain / GA-like domain / Ubiquitin-like (UB roll) - #10 / Immunoglobulin/albumin-binding domain superfamily / YSIRK Gram-positive signal peptide / LPXTG cell wall anchor motif / Gram-positive cocci surface proteins LPxTG motif profile. / LPXTG cell wall anchor domain / Ubiquitin-like (UB roll) / Roll / Alpha Beta
Similarity search - Domain/homology
Immunoglobulin G-binding protein G
Similarity search - Component
Biological speciesStreptococcus sp. GX7805 (bacteria)
MethodX-RAY DIFFRACTION / Resolution: 2.07 Å
AuthorsGallagher, T. / Alexander, P. / Bryan, P. / Gilliland, G.L.
Citation
Journal: Biochemistry / Year: 1994
Title: Two crystal structures of the B1 immunoglobulin-binding domain of streptococcal protein G and comparison with NMR.
Authors: Gallagher, T. / Alexander, P. / Bryan, P. / Gilliland, G.L.
#1: Journal: Biochemistry / Year: 1992
Title: 1.67 Angstroms X-Ray Structure of the B2 Immunoglobulin-Binding Domain of Streptoccocal Protein G and Comparison to the NMR Structure of the B1 Domain
Authors: Achari, A. / Hale, S.P. / Howard, A.J. / Clore, G.M. / Gronenborn, A.M. / Hardman, K.D. / Whitlow, M.
#2: Journal: Science / Year: 1991
Title: A Novel, Highly Stable Fold of the Immunoglobulin Binding Domain of Streptococcal Protein G
Authors: Gronenborn, A.M. / Filpula, D.R. / Essig, N.Z. / Achari, A. / Whitlow, M. / Wingfield, P.T. / Clore, G.M.
History
DepositionNov 23, 1993Processing site: BNL
Revision 1.0Apr 30, 1994Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 29, 2017Group: Derived calculations / Other
Category: pdbx_database_status / struct_conf / struct_conf_type
Item: _pdbx_database_status.process_site

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: PROTEIN G


Theoretical massNumber of molelcules
Total (without water)6,2021
Polymers6,2021
Non-polymers00
Water36020
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)37.039, 25.084, 51.277
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 PROTEIN G /


Mass: 6201.784 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Streptococcus sp. GX7805 (bacteria) / References: UniProt: P06654
#2: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 20 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 1.92 Å3/Da / Density % sol: 35.95 %
Crystal grow
*PLUS
Temperature: 18 ℃ / pH: 4.5 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
150 %MPD1reservoir
250 mM1reservoirNaCl
325 mMNaOAc1reservoir
420 %2-propanol1reservoir
510 mg/mlprotein1drop

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Data collection

RadiationScattering type: x-ray
Radiation wavelengthRelative weight: 1
Reflection
*PLUS
Highest resolution: 2.04 Å / Num. obs: 2701 / Rmerge(I) obs: 0.07
Reflection shell
*PLUS
Mean I/σ(I) obs: 6.4

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Processing

Software
NameClassification
X-PLORmodel building
PROLSQrefinement
X-PLORrefinement
X-PLORphasing
RefinementResolution: 2.07→6 Å / σ(I): 1 /
RfactorNum. reflection
obs0.174 2567
Refinement stepCycle: LAST / Resolution: 2.07→6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms436 0 0 20 456
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_bond_d0.02
X-RAY DIFFRACTIONp_angle_d1.97
X-RAY DIFFRACTIONp_angle_deg
X-RAY DIFFRACTIONp_planar_d
X-RAY DIFFRACTIONp_hb_or_metal_coord
X-RAY DIFFRACTIONp_mcbond_it
X-RAY DIFFRACTIONp_mcangle_it
X-RAY DIFFRACTIONp_scbond_it
X-RAY DIFFRACTIONp_scangle_it
X-RAY DIFFRACTIONp_plane_restr
X-RAY DIFFRACTIONp_chiral_restr
X-RAY DIFFRACTIONp_singtor_nbd
X-RAY DIFFRACTIONp_multtor_nbd
X-RAY DIFFRACTIONp_xhyhbond_nbd
X-RAY DIFFRACTIONp_xyhbond_nbd
X-RAY DIFFRACTIONp_planar_tor
X-RAY DIFFRACTIONp_staggered_tor
X-RAY DIFFRACTIONp_orthonormal_tor
X-RAY DIFFRACTIONp_transverse_tor
X-RAY DIFFRACTIONp_special_tor
Refinement
*PLUS
Rfactor obs: 0.174
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_angle_d
X-RAY DIFFRACTIONp_angle_deg1.97

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