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- PDB-7est: Interaction of the peptide CF3-LEU-ALA-NH-C6H4-CF3(TFLA) with por... -

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Basic information

Entry
Database: PDB / ID: 7est
TitleInteraction of the peptide CF3-LEU-ALA-NH-C6H4-CF3(TFLA) with porcine pancreatic elastase. X-ray studies at 1.8 Angstroms
ComponentsELASTASE
KeywordsHYDROLASE/HYDROLASE INHIBITOR / SERINE PROTEINASE / HYDROLASE-HYDROLASE INHIBITOR complex
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 / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin family, histidine active site. / Serine proteases, trypsin domain profile. / Serine proteases, trypsin family, serine active site. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin / Trypsin-like serine proteases ...Serine proteases, trypsin family, histidine active site / Serine proteases, trypsin family, serine active site / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin family, histidine active site. / Serine proteases, trypsin domain profile. / Serine proteases, trypsin family, serine active site. / 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
TRIFLUOROACETYL-L-LEUCYL-L-ALANYL-P-TRIFLUOROMETHYLPHENYLANILIDE / Chem-0Z2 / DIMETHYLFORMAMIDE / Chymotrypsin-like elastase family member 1
Similarity search - Component
Biological speciesSus scrofa (pig)
MethodX-RAY DIFFRACTION / Resolution: 1.8 Å
AuthorsLi De Lasierra, I. / Prange, T.
Citation
Journal: J.Mol.Recog. / Year: 1990
Title: Interaction of the peptide CF3-Leu-Ala-NH-C6H4-CF3 (TFLA) with porcine pancreatic elastase. X-ray studies at 1.8 A.
Authors: de la Sierra, I.L. / Papamichael, E. / Sakarellos, C. / Dimicoli, J.L. / Prange, T.
#1: Journal: J.Mol.Biol. / Year: 1978
Title: The Atomic Structure of Crystalline Porcine Pancreatic Elastase at 2.5 Angstroms Resolution. Comparisons with the Structure of Alpha-Chymotrypsin
Authors: Sawyer, L. / Shotton, C.M. / Campbell, J.W. / Wendell, P.L. / Muirhead, H. / Watson, H.C. / Diamond, R. / Ladner, R.C.
#2: Journal: Eur.J.Biochem. / Year: 1980
Title: The Indirect Mechanism of Action of the Trifluoroacetyl Peptides on Elastase
Authors: Dimicoli, J.-L. / Renaud, A. / Bieth, J.
#3: Journal: J.Mol.Biol. / Year: 1982
Title: Crystallographic Study of the Binding of a Tri-Fluoroacetyl Dipeptide Anilide Inhibitor with Elastase
Authors: Hughes, D.L. / Diecker, L.C. / Bieth, L.C. / Dimicoli, J.-L.
#4: Journal: Acta Crystallogr B / Year: 1988
Title: Structure of native porcine pancreatic elastase at 1.65 A resolutions.
Authors: Meyer, E. / Cole, G. / Radhakrishnan, R. / Epp, O.
#5: Journal: J.Mol.Biol. / Year: 1986
Title: Structure of the Product Complex of Acetyl-Ala-Pro-Ala with Porcine Pancreatic Elastase at 1.65 A Resolution
Authors: Meyer, E. / Radhakrishnan, R. / Cole, G. / Presta, L.G.
History
DepositionJun 15, 1990Processing site: BNL
Revision 1.0Oct 15, 1991Provider: repository / Type: Initial release
Revision 1.1Mar 3, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Atomic model / Database references ...Atomic model / Database references / Derived calculations / Non-polymer description / Structure summary / Version format compliance
Revision 1.3Dec 21, 2011Group: Database references
Revision 1.4Dec 12, 2012Group: Other
Revision 1.5Aug 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_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.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
Remark 700SHEET THE TWO SEVEN STRANDED SHEETS IN THIS STRUCTURE ARE REALLY SIX STRANDED BETA BARRELS. THIS IS ...SHEET THE TWO SEVEN STRANDED SHEETS IN THIS STRUCTURE ARE REALLY SIX STRANDED BETA BARRELS. THIS IS DENOTED BY THE FIRST STRAND RECURRING AS THE LAST STRAND.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
E: ELASTASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)26,8719
Polymers25,9281
Non-polymers9438
Water1,856103
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)52.530, 57.470, 75.260
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 1 types, 1 molecules E

#1: Protein ELASTASE


Mass: 25928.031 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Sus scrofa (pig) / Organ: PANCREAS / References: UniProt: P00772, pancreatic elastase

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Non-polymers , 5 types, 111 molecules

#2: Chemical ChemComp-0Z2 / N-(trifluoroacetyl)-L-leucyl-N-[4-(trifluoromethyl)phenyl]-L-alaninamide / TFLA


Type: peptide-like, Peptide-like / Class: Inhibitor / Mass: 441.368 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C18H21F6N3O3
References: TRIFLUOROACETYL-L-LEUCYL-L-ALANYL-P-TRIFLUOROMETHYLPHENYLANILIDE
#3: Chemical ChemComp-SO4 / SULFATE ION


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


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#5: Chemical
ChemComp-DMF / DIMETHYLFORMAMIDE


Mass: 73.094 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C3H7NO
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 103 / Source method: isolated from a natural source / Formula: H2O

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Details

Sequence detailsTHE RESIDUE NUMBERING SCHEME USED FOR ELASTASE WAS CHOSEN TO MAXIMIZE HOMOLOGY WITH THE NUMBERING ...THE RESIDUE NUMBERING SCHEME USED FOR ELASTASE WAS CHOSEN TO MAXIMIZE HOMOLOGY WITH THE NUMBERING FOR CHYMOTRYPSINOGEN A.

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.15 Å3/Da / Density % sol: 42.88 %
Crystal growpH: 5.7 / Details: 10% DMF SOLUTION BUFFERED AT PH 5.7 WITH ACETATE
Crystal grow
*PLUS
pH: 5.7 / Method: vapor diffusion, sitting drop
Components of the solutions
*PLUS
IDCommon nameCrystal-IDSol-IDDetails
1PPE11
2acetate11
3TFLA11
4DME1110:1 excess
5ammonium sulfate11

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Data collection

RadiationScattering type: x-ray
Radiation wavelengthRelative weight: 1
Reflection
*PLUS
Highest resolution: 2 Å / Num. all: 19661 / Num. obs: 11021 / Num. measured all: 10569 / Rmerge(I) obs: 0.039

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Processing

SoftwareName: X-PLOR / Classification: refinement
RefinementStarting model: ELASTASE COMPLEXED WITH A TRIFLUOROACETYL DIPEPTIDE INHIBITOR, (PDB ENTRY 2EST)

2est


Rfactor Rwork: 0.19 / Highest resolution: 1.8 Å
Refinement stepCycle: LAST / Highest resolution: 1.8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1822 0 61 103 1986
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.02
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_deg2
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
Refinement
*PLUS
Highest resolution: 2.2 Å / Rfactor all: 0.169
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: x_angle_d / Dev ideal: 2

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