1MEG Hydrolase date May 04, 1996
title Crystal Structure Of A Caricain D158e Mutant In Complex With E-64
authors N.A.Katerelos
compound source
Molecule: Caricain
Chain: A
Synonym: Papaya Proteinase, Protease Omega
Engineered: Yes
Mutation: Yes
Organism_scientific: Carica Papaya
Organism_common: Papaya
Organism_taxid: 3649
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Pet
Expression_system_vector_type: Pet
Expression_system_vector: Pet Vector
Expression_system_plasmid: Plyss
symmetry Space Group: C 1 2 1
R_factor 0.193 R_Free NULL
length a length b length c angle alpha angle beta angle gamma
53.450 65.330 64.370 90.00 111.60 90.00
method X-Ray Diffractionresolution 2.00 Å
ligand E64, EOH enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1KHP, 1PE6

Primary referenceCrystal structure of a caricain D158E mutant in complex with E-64., Katerelos NA, Taylor MA, Scott M, Goodenough PW, Pickersgill RW, FEBS Lett 1996 Aug 19;392(1):35-9. PMID:8769310
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (40 Kb) [Save to disk]
  • Biological Unit Coordinates (1meg.pdb1.gz) 37 Kb
  • LPC: Ligand-Protein Contacts for 1MEG
  • CSU: Contacts of Structural Units for 1MEG
  • Likely Quarternary Molecular Structure file(s) for 1MEG
  • Structure Factors (87 Kb)
  • Retrieve 1MEG in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1MEG from S2C, [Save to disk]
  • Re-refined 1meg structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1MEG 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 1MEG
  • 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 1MEG, from MSDmotif at EBI
  • Genome occurence of 1MEG's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1meg__, region [Jmol] [rasmolscript] [script source]
  • Fold representative 1meg 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: [1meg_A] [1meg]
  • SWISS-PROT database: [P10056]
  • Domain organization of [PAPA3_CARPA] by SWISSPFAM
  • Domain found in 1MEG: [Pept_C1 ] by SMART
  • Other resources with information on 1MEG
  • Community annotation for 1MEG 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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