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- PDB-2azz: Crystal Structure of Porcine Pancreatic Phospholipase A2 in Compl... -

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Basic information

Entry
Database: PDB / ID: 2azz
TitleCrystal Structure of Porcine Pancreatic Phospholipase A2 in Complex with Taurocholate
ComponentsPhospholipase A2, major isoenzyme
KeywordsHYDROLASE / Bile Salt / Taurocholate / Carboxylic ester hydrolase / PLA2 / Panceartic enzyme
Function / homology
Function and homology information


regulation of D-glucose import / positive regulation of podocyte apoptotic process / phosphatidylglycerol metabolic process / phospholipase A2 activity / phosphatidylcholine metabolic process / leukotriene biosynthetic process / bile acid binding / phospholipase A2 / neutrophil mediated immunity / calcium-dependent phospholipase A2 activity ...regulation of D-glucose import / positive regulation of podocyte apoptotic process / phosphatidylglycerol metabolic process / phospholipase A2 activity / phosphatidylcholine metabolic process / leukotriene biosynthetic process / bile acid binding / phospholipase A2 / neutrophil mediated immunity / calcium-dependent phospholipase A2 activity / positive regulation of calcium ion transport into cytosol / lipid catabolic process / neutrophil chemotaxis / positive regulation of interleukin-8 production / positive regulation of immune response / phospholipid binding / cellular response to insulin stimulus / positive regulation of fibroblast proliferation / fatty acid biosynthetic process / positive regulation of MAPK cascade / intracellular signal transduction / signaling receptor binding / positive regulation of cell population proliferation / calcium ion binding / cell surface / positive regulation of transcription by RNA polymerase II / extracellular region
Similarity search - Function
Phospholipase A2, aspartic acid active site / Phospholipase A2 aspartic acid active site. / Phospholipase A2 / Phospholipase A2 / Phospholipase A2, histidine active site / Phospholipase A2 histidine active site. / Phospholipase A2 domain / Phospholipase A2 / Phospholipase A2 / Phospholipase A2 domain ...Phospholipase A2, aspartic acid active site / Phospholipase A2 aspartic acid active site. / Phospholipase A2 / Phospholipase A2 / Phospholipase A2, histidine active site / Phospholipase A2 histidine active site. / Phospholipase A2 domain / Phospholipase A2 / Phospholipase A2 / Phospholipase A2 domain / Phospholipase A2 domain superfamily / Up-down Bundle / Mainly Alpha
Similarity search - Domain/homology
TAUROCHOLIC ACID / Phospholipase A2, major isoenzyme
Similarity search - Component
Biological speciesSus scrofa (pig)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsPan, Y.H. / Bahnson, B.J. / Jain, M.K.
CitationJournal: J.Mol.Biol. / Year: 2007
Title: Structural basis for bile salt inhibition of pancreatic phospholipase A2.
Authors: Pan, Y.H. / Bahnson, B.J.
History
DepositionSep 12, 2005Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 14, 2006Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Aug 23, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / 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_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.ptnr1_symmetry / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_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.ptnr3_symmetry / _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.ptnr1_symmetry / _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_conn.ptnr2_symmetry / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Oct 30, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Phospholipase A2, major isoenzyme
hetero molecules


Theoretical massNumber of molelcules
Total (without water)14,7528
Polymers14,0101
Non-polymers7427
Water1,74797
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
2
A: Phospholipase A2, major isoenzyme
hetero molecules

A: Phospholipase A2, major isoenzyme
hetero molecules


Theoretical massNumber of molelcules
Total (without water)29,50416
Polymers28,0192
Non-polymers1,48514
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation5_555x-y,-y,-z+2/31
Buried area4830 Å2
ΔGint-155 kcal/mol
Surface area13110 Å2
MethodPISA
Unit cell
Length a, b, c (Å)68.650, 68.650, 65.586
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number152
Space group name H-MP3121
Components on special symmetry positions
IDModelComponents
11A-126-

CA

21A-127-

CA

31A-175-

HOH

41A-202-

HOH

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Components

#1: Protein Phospholipase A2, major isoenzyme / Phosphatidylcholine 2-acylhydrolase / Group IB phospholipase A2


Mass: 14009.714 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Sus scrofa (pig) / Gene: PLA2G1B / Production host: Escherichia coli (E. coli) / References: UniProt: P00592, phospholipase A2
#2: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Ca
#3: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Cl
#4: Chemical ChemComp-TCH / TAUROCHOLIC ACID


Mass: 515.703 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C26H45NO7S
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 97 / 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: 3.18 Å3/Da / Density % sol: 61.36 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: 0.2M Calcium Chloride, 28% PEG 400, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 93 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU300 / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Oct 30, 2004 / Details: mirrors
RadiationMonochromator: Yale Mirrors / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.2→27.1 Å / Num. obs: 9422 / % possible obs: 96.2 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -3 / Redundancy: 4 % / Biso Wilson estimate: 26.5 Å2 / Rmerge(I) obs: 0.075 / Rsym value: 0.058 / Net I/σ(I): 22
Reflection shellResolution: 2.2→2.28 Å / Redundancy: 5 % / Rmerge(I) obs: 0.311 / Mean I/σ(I) obs: 3.9 / Rsym value: 0.264 / % possible all: 96.4

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Processing

Software
NameVersionClassification
CNS1.1refinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDb entry 2BO1

2bo1


Resolution: 2.2→27.08 Å / Rfactor Rfree error: 0.011 / Data cutoff high absF: 453998.77 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.245 479 5.5 %RANDOM
Rwork0.199 ---
all0.201 9128 --
obs0.199 8649 91.9 %-
Solvent computationSolvent model: FLAT MODEL
Refine analyze
FreeObs
Luzzati coordinate error0.3 Å0.25 Å
Luzzati d res low-5 Å
Luzzati sigma a0.27 Å0.21 Å
Refinement stepCycle: LAST / Resolution: 2.2→27.08 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms971 0 41 97 1109
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.005
X-RAY DIFFRACTIONc_angle_deg1.1
X-RAY DIFFRACTIONc_dihedral_angle_d21.6
X-RAY DIFFRACTIONc_improper_angle_d0.77
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_scangle_it
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2water_rep.paramwater.top
X-RAY DIFFRACTION3ion.paramion.top
X-RAY DIFFRACTION4tch.partch.top

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