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- PDB-1zop: CD11A I-DOMAIN WITH BOUND MAGNESIUM ION -

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Basic information

Entry
Database: PDB / ID: 1zop
TitleCD11A I-DOMAIN WITH BOUND MAGNESIUM ION
ComponentsI-DOMAIN FRAGMENT OF LFA-1
KeywordsCELL ADHESION / INTEGRIN / GLYCOPROTEIN / TRANSMEMBRANE / EXTRACELLULAR MATRIX / CYTOSKELETON
Function / homology
Function and homology information


memory T cell extravasation / integrin alphaL-beta2 complex / ICAM-3 receptor activity / T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell / RUNX3 Regulates Immune Response and Cell Migration / integrin complex / heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules / cell adhesion mediated by integrin / receptor clustering / leukocyte cell-cell adhesion ...memory T cell extravasation / integrin alphaL-beta2 complex / ICAM-3 receptor activity / T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell / RUNX3 Regulates Immune Response and Cell Migration / integrin complex / heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules / cell adhesion mediated by integrin / receptor clustering / leukocyte cell-cell adhesion / Integrin cell surface interactions / specific granule membrane / phagocytosis / cell adhesion molecule binding / cell-matrix adhesion / integrin-mediated signaling pathway / Cell surface interactions at the vascular wall / cell-cell adhesion / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / integrin binding / cell adhesion / inflammatory response / external side of plasma membrane / Neutrophil degranulation / cell surface / signal transduction / extracellular exosome / membrane / metal ion binding / plasma membrane
Similarity search - Function
Integrin alpha cytoplasmic region / von Willebrand factor, type A domain / Integrin alpha-2 / Integrin alpha Ig-like domain 1 / Integrin alpha chain / Integrin alpha beta-propellor / Integrin alpha chain, C-terminal cytoplasmic region, conserved site / : / Integrin alpha Ig-like domain 2 / Integrins alpha chain signature. ...Integrin alpha cytoplasmic region / von Willebrand factor, type A domain / Integrin alpha-2 / Integrin alpha Ig-like domain 1 / Integrin alpha chain / Integrin alpha beta-propellor / Integrin alpha chain, C-terminal cytoplasmic region, conserved site / : / Integrin alpha Ig-like domain 2 / Integrins alpha chain signature. / FG-GAP repeat profile. / Integrin alpha (beta-propellor repeats). / FG-GAP repeat / FG-GAP repeat / Integrin domain superfamily / Integrin alpha, N-terminal / von Willebrand factor type A domain / von Willebrand factor (vWF) type A domain / VWFA domain profile. / von Willebrand factor, type A / von Willebrand factor A-like domain superfamily / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
: / Integrin alpha-L
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2 Å
AuthorsLeahy, D.J. / Qu, A.
Citation
Journal: Structure / Year: 1996
Title: The role of the divalent cation in the structure of the I domain from the CD11a/CD18 integrin.
Authors: Qu, A. / Leahy, D.J.
#1: Journal: Proc.Natl.Acad.Sci.USA / Year: 1995
Title: Crystal Structure of the I-Domain from the Cd11A/Cd18 (Lfa-1, Alpha L Beta 2) Integrin
Authors: Qu, A. / Leahy, D.J.
History
DepositionJun 21, 1996Processing site: BNL
Revision 1.0Dec 7, 1996Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 9, 2023Group: Database references / Derived calculations ...Database references / Derived calculations / Other / Refinement description
Category: database_2 / pdbx_database_status ...database_2 / pdbx_database_status / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.process_site / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4May 22, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: I-DOMAIN FRAGMENT OF LFA-1
B: I-DOMAIN FRAGMENT OF LFA-1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)42,8286
Polymers42,6472
Non-polymers1814
Water4,450247
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2720 Å2
ΔGint-43 kcal/mol
Surface area16490 Å2
MethodPISA
Unit cell
Length a, b, c (Å)76.160, 78.630, 66.370
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212

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Components

#1: Protein I-DOMAIN FRAGMENT OF LFA-1 / CD11A/CD18 / ALPHAL BETA2 INTEGRIN / A-DOMAIN


Mass: 21323.494 Da / Num. of mol.: 2 / Mutation: W189R, MIGHT BE ISOFORM
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Description: THE PROTEIN WAS REFOLDED FROM 7M UREA / Cell line: 293 / Gene: PCR PRODUCT / Plasmid: PET11C / Gene (production host): PCR PRODUCT / Production host: Escherichia coli (E. coli) / Strain (production host): 293 / References: UniProt: P20701
#2: Chemical ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mn
#3: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Cl
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 247 / 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: 2.33 Å3/Da / Density % sol: 47.2 %
Crystal growpH: 5.2 / Details: pH 5.2
Crystal grow
*PLUS
Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
115 mg/mlprotein1drop
25 mM1dropMnCl2
35 mMbeta-mercaptoethanol1drop
414-20 %PEG33501reservoir
5100 mM1reservoirMnCl2
650 mMsodium acetate1reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU / Wavelength: 1.5418
DetectorType: RIGAKU RAXIS IIC / Detector: IMAGE PLATE / Date: Sep 1, 1994
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2→30 Å / Num. obs: 22687 / % possible obs: 87.1 % / Redundancy: 5.5 % / Rmerge(I) obs: 0.107 / Net I/σ(I): 20.7
Reflection
*PLUS
Redundancy: 5.8 %

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Processing

Software
NameVersionClassification
X-PLOR3.1model building
X-PLOR3.1refinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLOR3.1phasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1IFA

1ifa


Resolution: 2→30 Å / σ(F): 2
RfactorNum. reflection% reflection
Rfree0.263 -5 %
Rwork0.197 --
obs0.197 22687 -
Displacement parametersBiso mean: 11.48 Å2
Refinement stepCycle: LAST / Resolution: 2→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2950 0 4 247 3201
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.009
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.94
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Rfactor all: 0.217
Solvent computation
*PLUS
Displacement parameters
*PLUS

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