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- PDB-2zft: Exploring trypsin S3 pocket -

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Basic information

Entry
Database: PDB / ID: 2zft
TitleExploring trypsin S3 pocket
ComponentsCationic trypsin
KeywordsHydrolase/Hydrolase Inhibitor / Hydrolase inhibitors / Digestion / Metal-binding / Protease / Secreted / Serine protease / Zymogen / Hydrolase-Hydrolase Inhibitor complex
Function / homology
Function and homology information


trypsin / serpin family protein binding / serine protease inhibitor complex / digestion / endopeptidase activity / 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
(S)-N-(4-carbamimidoylbenzyl)-1-(2-(cyclopentylamino)ethanoyl)pyrrolidine-2-carboxamide / Chem-10U / Serine protease 1
Similarity search - Component
Biological speciesBos taurus (domestic cattle)
MethodX-RAY DIFFRACTION / FOURIER SYNTHESIS / Resolution: 1.76 Å
AuthorsBrandt, T. / Baum, B. / Heine, A. / Klebe, G.
CitationJournal: J.Mol.Biol. / Year: 2011
Title: Congeneric but still distinct: how closely related trypsin ligands exhibit different thermodynamic and structural properties
Authors: Brandt, T. / Holzmann, N. / Muley, L. / Khayat, M. / Wegscheid-Gerlach, C. / Baum, B. / Heine, A. / Hangauer, D. / Klebe, G.
History
DepositionJan 11, 2008Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jan 13, 2009Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 1.2Feb 27, 2013Group: Other
Revision 1.3Jan 22, 2014Group: Database references
Revision 1.4Nov 1, 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 / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.5Nov 13, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Cationic trypsin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)24,1828
Polymers23,3241
Non-polymers8587
Water3,099172
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)54.6, 54.6, 108.5
Angle α, β, γ (deg.)90.0, 90.0, 120.0
Int Tables number152
Space group name H-MP3121

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Cationic trypsin


Mass: 23324.287 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (domestic cattle) / Tissue: Pancreas / References: UniProt: P00760, trypsin

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Non-polymers , 5 types, 179 molecules

#2: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#3: Chemical ChemComp-10U / (S)-N-(4-carbamimidoylbenzyl)-1-(2-(cyclopentylamino)ethanoyl)pyrrolidine-2-carboxamide / (2S)-1-[cyclopentylamino)acetyl-N-{4-[amino(imino)methyl]benzyl}pyrrolidine-2-carboxamide


Type: peptide-like, Peptide-like / Class: Thrombin inhibitor / Mass: 371.477 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C20H29N5O2
References: (S)-N-(4-carbamimidoylbenzyl)-1-(2-(cyclopentylamino)ethanoyl)pyrrolidine-2-carboxamide
#4: Chemical ChemComp-DMS / DIMETHYL SULFOXIDE


Mass: 78.133 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H6OS / Comment: DMSO, precipitant*YM
#5: Chemical
ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C3H8O3
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 172 / Source method: isolated from a natural source / Formula: H2O

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Details

Has protein modificationY

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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 Å3/Da / Density % sol: 38.55 %
Crystal growTemperature: 289 K / Method: vapor diffusion, sitting drop / pH: 8
Details: 0.1M Imidazole buffer, 0.1M ammonium sulfate, 30% PEG8000, pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 289K

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Data collection

DiffractionMean temperature: 113 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH3R / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Dec 19, 2007
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.76→50 Å / Num. all: 19216 / Num. obs: 19216 / % possible obs: 99.6 % / Redundancy: 5.8 % / Biso Wilson estimate: 23.2 Å2 / Rsym value: 0.077 / Net I/σ(I): 21.6
Reflection shellResolution: 1.76→1.79 Å / Redundancy: 3.6 % / Mean I/σ(I) obs: 2.3 / Num. unique all: 897 / Rsym value: 0.48 / % possible all: 96.3

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Processing

Software
NameClassification
SHELXmodel building
SHELXL-97refinement
CrystalCleardata collection
HKL-2000data reduction
HKL-2000data scaling
CNSphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: PDB entry 2ZDK

2zdk


Resolution: 1.76→10 Å / Num. parameters: 7547 / Num. restraintsaints: 7107 / Cross valid method: FREE R / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.2307 892 4.8 %RANDOM
Rwork0.1545 ---
all0.1623 18567 --
obs0.1597 16114 97.4 %-
Refine analyzeNum. disordered residues: 4 / Occupancy sum hydrogen: 1591 / Occupancy sum non hydrogen: 1857
Refinement stepCycle: LAST / Resolution: 1.76→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1629 0 56 172 1857
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONs_bond_d0.007
X-RAY DIFFRACTIONs_angle_d0.025
X-RAY DIFFRACTIONs_similar_dist0
X-RAY DIFFRACTIONs_from_restr_planes0.0287
X-RAY DIFFRACTIONs_zero_chiral_vol0.039
X-RAY DIFFRACTIONs_non_zero_chiral_vol0.042
X-RAY DIFFRACTIONs_anti_bump_dis_restr0.017
X-RAY DIFFRACTIONs_rigid_bond_adp_cmpnt0
X-RAY DIFFRACTIONs_similar_adp_cmpnt0.061
X-RAY DIFFRACTIONs_approx_iso_adps0

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