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- PDB-1inc: CRYSTAL STRUCTURES OF THE COMPLEX OF PORCINE PANCREATIC ELASTASE ... -

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Basic information

Entry
Database: PDB / ID: 1inc
TitleCRYSTAL STRUCTURES OF THE COMPLEX OF PORCINE PANCREATIC ELASTASE WITH TWO VALINE-DERIVED BENZOXAZINONE INHIBITORS
ComponentsPORCINE PANCREATIC ELASTASE
KeywordsHYDROLASE(SERINE PROTEINASE)
Function / homology
Function and homology information


pancreatic elastase / serine-type endopeptidase activity / proteolysis / extracellular space / metal ion binding
Similarity search - Function
: / Serine proteases, trypsin family, histidine active site / Serine proteases, trypsin family, serine active site / Serine proteases, trypsin family, histidine active site. / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin family, serine active site. / Serine proteases, trypsin domain profile. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin ...: / Serine proteases, trypsin family, histidine active site / Serine proteases, trypsin family, serine active site / Serine proteases, trypsin family, histidine active site. / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin family, serine active site. / Serine proteases, trypsin domain profile. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin / Trypsin-like serine proteases / Thrombin, subunit H / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan / Beta Barrel / Mainly Beta
Similarity search - Domain/homology
Chem-ICL / Chymotrypsin-like elastase family member 1
Similarity search - Component
Biological speciesSus scrofa domestica (domestic pig)
MethodX-RAY DIFFRACTION / Resolution: 1.94 Å
AuthorsMeyer, E.
Citation
Journal: J.Mol.Biol. / Year: 1987
Title: Crystal structures of the complex of porcine pancreatic elastase with two valine-derived benzoxazinone inhibitors.
Authors: Radhakrishnan, R. / Presta, L.G. / Meyer Jr., E.F. / Wildonger, R.
#1: Journal: J.Am.Chem.Soc. / Year: 1992
Title: Design, Synthesis, and Kinetic Evaluation of a Unique Class of Elastase Inhibitors, the Peptidyl Alpha-Ketobenzoxazoles, and the X-Ray Crystal Structure of the Covalent Complex between Porcine ...Title: Design, Synthesis, and Kinetic Evaluation of a Unique Class of Elastase Inhibitors, the Peptidyl Alpha-Ketobenzoxazoles, and the X-Ray Crystal Structure of the Covalent Complex between Porcine Pancreatic Elastase and Ac-Ala-Pro-Val-2-Benzoxazole
Authors: Edwards, P.D. / Meyer Junior, E.F. / Vijayalakshmi, J. / Tuthill, P.A. / Andisik, D.A. / Gomes, B. / Strimpler, A.
History
DepositionMar 19, 1993Processing site: BNL
Revision 1.0Jan 31, 1994Provider: 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 / struct_conn / struct_ref_seq_dif / struct_sheet / 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 / _struct_conn.pdbx_leaving_atom_flag / _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_sheet.number_strands / _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 / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: PORCINE PANCREATIC ELASTASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)26,4194
Polymers25,9281
Non-polymers4913
Water2,522140
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)52.100, 58.000, 75.100
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 PORCINE PANCREATIC ELASTASE


Mass: 25928.031 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Sus scrofa domestica (domestic pig) / Species: Sus scrofa / Strain: domestica / References: UniProt: P00772, pancreatic elastase
#2: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4
#3: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#4: Chemical ChemComp-ICL / [1-(3-CHLORO-2-FORMYL-PHENYLCARBAMOYL)-2-METHYL-PROPYL]-CARBAMIC ACID TERT-BUTYL ESTER


Mass: 354.829 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C17H23ClN2O4
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 140 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY
Sequence detailsSEQUENCE ADVISORY NOTICE: DIFFERENCE BETWEEN SWISS-PROT AND PDB SEQUENCE. SWISS-PROT ENTRY NAME: ...SEQUENCE ADVISORY NOTICE: DIFFERENCE BETWEEN SWISS-PROT AND PDB SEQUENCE. SWISS-PROT ENTRY NAME: EL1_PIG SWISS-PROT RESIDUE PDB SEQRES NAME NUMBER NAME CHAIN SEQ/INSERT CODE ASP 71 ASN 77

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.19 Å3/Da / Density % sol: 43.77 %
Crystal grow
*PLUS
pH: 5 / Method: microdialysis
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
115 mg/mlinhibitor11
32 %(w/v)protein11
40.02 %(w/v)sodium azide11
50.1 Msodium acetate11
60.1 Msodium sulfate12
2ethyl ether11

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Data collection

RadiationScattering type: x-ray
Radiation wavelengthRelative weight: 1
Reflection
*PLUS
Highest resolution: 1.76 Å / Num. obs: 17309 / % possible obs: 44 % / Num. measured all: 48138 / Rmerge(I) obs: 0.068
Reflection shell
*PLUS
Highest resolution: 1.76 Å / Lowest resolution: 1.79 Å / Num. possible: 29

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Processing

SoftwareName: EREF / Classification: refinement
RefinementHighest resolution: 1.94 Å /
RfactorNum. reflection
Rwork0.172 -
obs-16320
Refinement stepCycle: LAST / Highest resolution: 1.94 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1822 0 30 140 1992
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONo_bond_d0.02
X-RAY DIFFRACTIONo_bond_d_na
X-RAY DIFFRACTIONo_bond_d_prot
X-RAY DIFFRACTIONo_angle_d
X-RAY DIFFRACTIONo_angle_d_na
X-RAY DIFFRACTIONo_angle_d_prot
X-RAY DIFFRACTIONo_angle_deg2.8
X-RAY DIFFRACTIONo_angle_deg_na
X-RAY DIFFRACTIONo_angle_deg_prot
X-RAY DIFFRACTIONo_dihedral_angle_d
X-RAY DIFFRACTIONo_dihedral_angle_d_na
X-RAY DIFFRACTIONo_dihedral_angle_d_prot
X-RAY DIFFRACTIONo_improper_angle_d
X-RAY DIFFRACTIONo_improper_angle_d_na
X-RAY DIFFRACTIONo_improper_angle_d_prot
X-RAY DIFFRACTIONo_mcbond_it
X-RAY DIFFRACTIONo_mcangle_it
X-RAY DIFFRACTIONo_scbond_it
X-RAY DIFFRACTIONo_scangle_it
Software
*PLUS
Name: EREF / Classification: refinement
Refinement
*PLUS
Highest resolution: 1.76 Å / Lowest resolution: 7 Å / Num. reflection obs: 6320 / Rfactor obs: 0.172
Solvent computation
*PLUS
Displacement parameters
*PLUS
Biso mean: 16.7 Å2
Refine LS restraints
*PLUS
Type: o_angle_d / Dev ideal: 2.8

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