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- PDB-1fn6: CRYSTAL STRUCTURE OF PORCINE BETA TRYPSIN WITH 0.1% POLYDOCANOL -

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Basic information

Entry
Database: PDB / ID: 1fn6
TitleCRYSTAL STRUCTURE OF PORCINE BETA TRYPSIN WITH 0.1% POLYDOCANOL
ComponentsTRYPSIN
KeywordsHYDROLASE / SERINE PROTEASE
Function / homology
Function and homology information


trypsin / digestion / 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
Biological speciesSus scrofa (pig)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.8 Å
AuthorsDeepthi, S. / Johnson, A. / Pattabhi, V.
Citation
Journal: Acta Crystallogr.,Sect.D / Year: 2001
Title: Structures of porcine beta-trypsin-detergent complexes: the stabilization of proteins through hydrophilic binding of polydocanol.
Authors: Deepthi, S. / Johnson, A. / Pattabhi, V.
#1: Journal: BIOCHIM.BIOPHYS.ACTA / Year: 1999
Title: Crystal Structure at 1.63 Angstroms Resolution of the Native Form of Porcine Beta Trypsin : Revealing an Acetate Ion Binding Site and Functional Water Network
Authors: Johnson, A. / Gautham, N. / Pattabhi, V.
#2: Journal: Acta Crystallogr.,Sect.D / Year: 1997
Title: The First Structure at 1.8 Angstroms Resolution of an Active Autolysate Form of Porcine Alpha Trypsin
Authors: Johnson, A. / Krishnaswamy, S. / Sundaram, P.V. / Pattabhi, V.
History
DepositionAug 21, 2000Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 13, 2000Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 4, 2017Group: Refinement description / Category: software
Revision 1.4Apr 4, 2018Group: Data collection / Category: diffrn_source / Item: _diffrn_source.type
Revision 1.5Aug 9, 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.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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: TRYPSIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)23,7846
Polymers23,4921
Non-polymers2925
Water2,810156
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)77.904, 54.043, 47.238
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 A

#1: Protein TRYPSIN /


Mass: 23491.525 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / Organ: PANCREAS / References: UniProt: P00761, trypsin

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Non-polymers , 5 types, 161 molecules

#2: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#3: Chemical ChemComp-SO4 / SULFATE ION / Sulfate


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4
#4: Chemical ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL / Ethylene glycol


Mass: 62.068 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C2H6O2
#5: Chemical ChemComp-MOH / METHANOL / Methanol


Mass: 32.042 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: CH4O
#6: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 156 / Source method: isolated from a natural source / Formula: H2O

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Details

Sequence detailsTHE 223 AMINO ACIDS OF TRYPSIN ARE IDENTIFIED BY THE RESIDUE NUMBERS OF THE HOMOLOGOUS CHYMOTRYPSINOGEN.

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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: 2.12 Å3/Da / Density % sol: 41.86 %
Crystal growMethod: vapor diffusion, hanging drop / pH: 6.7 / Details: pH 6.70, VAPOR DIFFUSION, HANGING DROP
Crystal grow
*PLUS
Temperature: 293 K / pH: 6.7
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
115 mg/mlprotein1drop
20.05 Msodium acetate1drop
320 mM1dropCaCl2
51.5 Mammonium sulfate1reservoir
60.7 Mammonium sulfate1reservoir
4polydocanol1drop

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Data collection

DiffractionMean temperature: 293 K
Diffraction sourceSource: ROTATING ANODE / Type: OTHER / Wavelength: 1.54
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Mar 16, 1998
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 1.8→26.26 Å / Num. obs: 17686 / % possible obs: 92.63 % / Observed criterion σ(I): 0 / Redundancy: 3.84 % / Rmerge(I) obs: 0.0677 / Net I/σ(I): 14.61
Reflection shellResolution: 1.8→1.9 Å / Redundancy: 3.3 % / Rmerge(I) obs: 0.4495 / Mean I/σ(I) obs: 1.35 / % possible all: 88.4
Reflection
*PLUS
Num. measured all: 67986
Reflection shell
*PLUS
Num. unique obs: 4514 / Rmerge(I) obs: 0.361

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Processing

Software
NameClassification
XDSdata scaling
AUTOMARdata reduction
X-PLORmodel building
X-PLORrefinement
REFMACrefinement
XDSdata reduction
X-PLORphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1QQU

1qqu


Resolution: 1.8→8 Å / Cross valid method: FREE R / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.242 608 4.85 %RANDOM R VALUE (WORKING + TEST SET) : 0.162
Rwork0.161 ---
obs0.161 17473 92.7 %-
Refinement stepCycle: LAST / Resolution: 1.8→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1642 0 14 158 1814
Software
*PLUS
Name: X-PLOR,REFMAC / Classification: refinement
Refinement
*PLUS
Highest resolution: 1.8 Å / % reflection Rfree: 4.85 % / Rfactor all: 0.162 / Rfactor obs: 0.157 / Rfactor Rfree: 0.238
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_bond_d0.015
X-RAY DIFFRACTIONp_angle_d
X-RAY DIFFRACTIONp_angle_deg2.5
X-RAY DIFFRACTIONp_dihedral_angle_d
X-RAY DIFFRACTIONp_dihedral_angle_deg28
X-RAY DIFFRACTIONp_improper_angle_d
X-RAY DIFFRACTIONp_improper_angle_deg2.6
X-RAY DIFFRACTIONp_mcbond_it
X-RAY DIFFRACTIONp_scbond_it
X-RAY DIFFRACTIONp_mcangle_it
X-RAY DIFFRACTIONp_scangle_it

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