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- PDB-1ceh: STRUCTURE AND FUNCTION OF THE CATALYTIC SITE MUTANT ASP99ASN OF P... -

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Basic information

Entry
Database: PDB / ID: 1ceh
TitleSTRUCTURE AND FUNCTION OF THE CATALYTIC SITE MUTANT ASP99ASN OF PHOSPHOLIPASE A2: ABSENCE OF CONSERVED STRUCTURAL WATER
ComponentsPHOSPHOLIPASE A2
KeywordsHYDROLASE (CARBOXYLIC ESTER)
Function / homology
Function and homology information


Acyl chain remodelling of PS / Acyl chain remodelling of PG / Synthesis of PA / Acyl chain remodelling of PC / Acyl chain remodelling of PE / Acyl chain remodelling of PI / positive regulation of podocyte apoptotic process / phosphatidylglycerol metabolic process / phosphatidylcholine metabolic process / calcium-dependent phospholipase A2 activity ...Acyl chain remodelling of PS / Acyl chain remodelling of PG / Synthesis of PA / Acyl chain remodelling of PC / Acyl chain remodelling of PE / Acyl chain remodelling of PI / positive regulation of podocyte apoptotic process / phosphatidylglycerol metabolic process / phosphatidylcholine metabolic process / calcium-dependent phospholipase A2 activity / phospholipase A2 / bile acid binding / arachidonic acid secretion / phospholipid metabolic process / lipid catabolic process / innate immune response in mucosa / phospholipid binding / fatty acid biosynthetic process / antimicrobial humoral immune response mediated by antimicrobial peptide / positive regulation of fibroblast proliferation / antibacterial humoral response / defense response to Gram-positive bacterium / signaling receptor binding / calcium ion binding / cell surface / extracellular space
Similarity search - Function
Phospholipase A2, aspartic acid active site / Phospholipase A2 aspartic acid active site. / Phospholipase A2 / Phospholipase A2, histidine active site / Phospholipase A2 histidine active site. / Phospholipase A2 / 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, histidine active site / Phospholipase A2 histidine active site. / Phospholipase A2 / Phospholipase A2 domain / Phospholipase A2 / Phospholipase A2 / Phospholipase A2 domain / Phospholipase A2 domain superfamily / Up-down Bundle / Mainly Alpha
Similarity search - Domain/homology
Biological speciesBos taurus (cattle)
MethodX-RAY DIFFRACTION / Resolution: 1.9 Å
AuthorsKumar, A. / Sekharudu, C. / Ramakrishnan, B. / Dupureur, C.M. / Zhu, H. / Tsai, M.-D. / Sundaralingam, M.
Citation
Journal: Protein Sci. / Year: 1994
Title: Structure and function of the catalytic site mutant Asp 99 Asn of phospholipase A2: absence of the conserved structural water.
Authors: Kumar, A. / Sekharudu, C. / Ramakrishnan, B. / Dupureur, C.M. / Zhu, H. / Tsai, M.D. / Sundaralingam, M.
#1: Journal: Biochemistry / Year: 1991
Title: Phospholipase A2 Engineering. X-Ray Structural and Functional Evidence for the Interaction of Lysine-56 with Substrates
Authors: Noel, J.P. / Bingman, C.A. / Deng, T. / Dupureur, C.M. / Hamilton, K.J. / Jiang, R.-T. / Kwak, J.-G. / Sekharudu, C. / Sundaralingam, M. / Tsai, M.-D.
History
DepositionNov 16, 1994Processing site: BNL
Revision 1.0Feb 7, 1995Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Jun 5, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / 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_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: PHOSPHOLIPASE A2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)13,8502
Polymers13,8101
Non-polymers401
Water1,45981
1
A: PHOSPHOLIPASE A2
hetero molecules

A: PHOSPHOLIPASE A2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)27,6994
Polymers27,6192
Non-polymers802
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation5_556x-y,-y,-z+5/31
Unit cell
Length a, b, c (Å)46.110, 46.110, 102.100
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number152
Space group name H-MP3121

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Components

#1: Protein PHOSPHOLIPASE A2


Mass: 13809.520 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bos taurus (cattle) / References: UniProt: P00593, phospholipase A2
#2: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 81 / 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: 2.27 Å3/Da / Density % sol: 45.77 %
Crystal grow
*PLUS
pH: 7.6 / Method: unknown
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formulaDetails
1100 mMTris11
25 mM11CaCl2
430 mg/mlMPD120.05ml
3protein11

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Data collection

RadiationScattering type: x-ray
Radiation wavelengthRelative weight: 1
ReflectionNum. obs: 10307 / % possible obs: 98.7 %
Reflection
*PLUS
Highest resolution: 1.9 Å / Observed criterion σ(F): 1 / Rmerge(I) obs: 0.06

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
X-PLORphasing
RefinementResolution: 1.9→6.5 Å / σ(F): 3
RfactorNum. reflection% reflection
Rwork0.185 --
obs0.185 8870 87.6 %
Displacement parametersBiso mean: 27.6 Å2
Refine analyzeLuzzati coordinate error obs: 0.2 Å
Refinement stepCycle: LAST / Resolution: 1.9→6.5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms957 0 1 81 1039
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Rfactor obs: 0.185 / Rfactor Rwork: 0.185
Solvent computation
*PLUS
Displacement parameters
*PLUS

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