1P2O Hydrolase Hydrolase Inhibitor date Apr 15, 2003
title Structural Consequences Of Accommodation Of Four Non- Cognate Amino-Acid Residues In The S1 Pocket Of Bovine Trypsin And Chymotrypsin
authors R.Helland, H.Czapinska, I.Leiros, M.Olufsen, J.Otlewski, A.O.Smalaas
compound source
Molecule: Chymotrypsinogen A
Chain: A, C
Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913

Molecule: Pancreatic Trypsin Inhibitor
Chain: B, D
Synonym: Basic Protease Inhibitor, Bpi, Bpti, Aprotinin
Engineered: Yes
Mutation: Yes

Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21 (De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Paed4
Other_details: T7 Promoter
symmetry Space Group: P 61
R_factor 0.227 R_Free 0.253
length a length b length c angle alpha angle beta angle gamma
100.170 100.170 206.140 90.00 90.00 120.00
method X-Ray Diffractionresolution 2.00 Å
ligand SO4 enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1BPT, 1N8O, 3BTW, 6GCH
A, C

D, B

Primary referenceStructural consequences of accommodation of four non-cognate amino acid residues in the S1 pocket of bovine trypsin and chymotrypsin., Helland R, Czapinska H, Leiros I, Olufsen M, Otlewski J, Smalas AO, J Mol Biol 2003 Oct 31;333(4):845-61. PMID:14568540
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (100 Kb) [Save to disk]
  • Biological Unit Coordinates (1p2o.pdb1.gz) 50 Kb
  • Biological Unit Coordinates (1p2o.pdb2.gz) 49 Kb
  • Biological Unit Coordinates (1p2o.pdb3.gz) 96 Kb
  • Biological Unit Coordinates (1p2o.pdb4.gz) 49 Kb
  • Biological Unit Coordinates (1p2o.pdb5.gz) 49 Kb
  • LPC: Ligand-Protein Contacts for 1P2O
  • CSU: Contacts of Structural Units for 1P2O
  • Likely Quarternary Molecular Structure file(s) for 1P2O
  • Structure Factors (443 Kb)
  • Retrieve 1P2O in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1P2O from S2C, [Save to disk]
  • Re-refined 1p2o structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1P2O in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 1P2O
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1P2O, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1p2oa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1p2ob_, region B [Jmol] [rasmolscript] [script source]
        - Domain d1p2oc_, region C [Jmol] [rasmolscript] [script source]
        - Domain d1p2od_, region D [Jmol] [rasmolscript] [script source]
  • Fold representative 1p2o from FSSP and Dali (Families of Structurally Similar Proteins)
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1p2o_A] [1p2o_B] [1p2o] [1p2o_C] [1p2o_D]
  • SWISS-PROT database: [P00974] [P00766]
  • Domain organization of [BPT1_BOVIN] [CTRA_BOVIN] by SWISSPFAM
  • Domains found in 1P2O: [KU] [Tryp_SPc ] by SMART
  • Other resources with information on 1P2O
  • Community annotation for 1P2O at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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