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- PDB-1fmg: CRYSTAL STRUCTURE OF PORCINE BETA TRYPSIN WITH 0.04% POLYDOCANOL -

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Basic information

Entry
Database: PDB / ID: 1fmg
TitleCRYSTAL STRUCTURE OF PORCINE BETA TRYPSIN WITH 0.04% 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 / 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
Biological speciesSus scrofa (pig)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.9 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 17, 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.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _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.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_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.6Dec 25, 2024Group: Advisory / Derived calculations / Structure summary
Category: pdbx_entry_details / pdbx_modification_feature ...pdbx_entry_details / pdbx_modification_feature / pdbx_validate_close_contact / pdbx_validate_symm_contact / struct_conn / struct_conn_type
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: TRYPSIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)23,9388
Polymers23,4921
Non-polymers4467
Water3,135174
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)77.947, 54.155, 47.274
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 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
#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


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


Mass: 62.068 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C2H6O2
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 174 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY
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: 42.06 %
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 18, 1998
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 1.9→23.64 Å / Num. obs: 15084 / % possible obs: 92.39 % / Observed criterion σ(I): 0 / Redundancy: 3.7 % / Rmerge(I) obs: 0.07 / Net I/σ(I): 12.73
Reflection shellResolution: 1.9→2 Å / Redundancy: 3.2 % / Rmerge(I) obs: 0.3677 / Mean I/σ(I) obs: 1.64 / % possible all: 88.6
Reflection
*PLUS
Num. measured all: 55748 / Rmerge(I) obs: 0.07
Reflection shell
*PLUS
Num. unique obs: 2021

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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: 1.9→8 Å / Cross valid method: FREE R / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.234 504 4.929 %RANDOM R VALUE (WORKING + TEST SET) : 0.162
Rwork0.158 ---
obs0.158 14881 92.6 %-
Refinement stepCycle: LAST / Resolution: 1.9→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1642 0 26 174 1842
Software
*PLUS
Name: X-PLOR,REFMAC / Classification: refinement
Refinement
*PLUS
Highest resolution: 1.9 Å / Rfactor all: 0.162 / Rfactor obs: 0.156 / Rfactor Rfree: 0.231
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_bond_d0.012
X-RAY DIFFRACTIONp_angle_d
X-RAY DIFFRACTIONp_angle_deg2.3
X-RAY DIFFRACTIONp_dihedral_angle_d
X-RAY DIFFRACTIONp_dihedral_angle_deg28
X-RAY DIFFRACTIONp_improper_angle_d
X-RAY DIFFRACTIONp_improper_angle_deg2.4
X-RAY DIFFRACTIONp_mcbond_it
X-RAY DIFFRACTIONp_scbond_it
X-RAY DIFFRACTIONp_mcangle_it
X-RAY DIFFRACTIONp_scangle_it

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