2HOS Transcription Dna date Jul 16, 2006
title Phage-Selected Homeodomain Bound To Unmodified Dna
authors K.M.Shokat, M.E.Feldman, M.D.Simon
compound source
Molecule: 5'-D(Tptptptpgpcpcpaptpgptpapaptpc Gpgpa)-3';
Chain: C
Engineered: Yes
Synthetic: Yes
Other_details: Commercial Solid Phase Synthesis

Molecule: 5'-D(Aptpcpcpgpgpgpgpaptptpapcpapt Apapa)-3';
Chain: D
Engineered: Yes

Synthetic: Yes
Other_details: Commercial Solid Phase Synthesis

Molecule: Segmentation Polarity Homeobox Protein Engrailed
Chain: A, B
Fragment: Engrailed Homeodomain
Synonym: Homeobox
Engineered: Yes
Mutation: Yes

Organism_scientific: Drosophila Melanogaster
Organism_common: Fruit Fly
Organism_taxid: 7227
Gene: En
Expression_system: Escherichia Coli Bl21
Expression_system_taxid: 511693
Expression_system_strain: Bl21
Expression_system_vector_type: Pmal-C2
Expression_system_plasmid: Pmal-Enhdf
symmetry Space Group: C 1 2 1
R_factor 0.223 R_Free 0.257
length a length b length c angle alpha angle beta angle gamma
127.097 45.025 73.081 90.00 118.41 90.00
method X-Ray Diffractionresolution 1.90 Å
ligand 3MO, GOL enzyme
A, B

Primary referenceStructure and properties of a re-engineered homeodomain protein-DNA interface., Simon MD, Feldman ME, Rauh D, Maris AE, Wemmer DE, Shokat KM, ACS Chem Biol. 2006 Dec 15;1(12):755-60. PMID:17240973
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (46 Kb) [Save to disk]
  • Biological Unit Coordinates (2hos.pdb1.gz) 40 Kb
  • LPC: Ligand-Protein Contacts for 2HOS
  • CSU: Contacts of Structural Units for 2HOS
  • Likely Quarternary Molecular Structure file(s) for 2HOS
  • Structure Factors (407 Kb)
  • Retrieve 2HOS in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2HOS from S2C, [Save to disk]
  • Re-refined 2hos structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2HOS 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 2HOS
  • 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 2HOS, from MSDmotif at EBI
  • Fold representative 2hos from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2hos_A] [2hos] [2hos_D] [2hos_C] [2hos_B]
  • SWISS-PROT database: [P02836]
  • Domain organization of [HMEN_DROME] by SWISSPFAM
  • Domain found in 2HOS: [HOX ] by SMART
  • Other resources with information on 2HOS
  • Community annotation for 2HOS 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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