4K55 Signaling Protein date Apr 13, 2013
title Structure Of The Extracellular Domain Of Butyrophilin Btn3a1 Complex With (E)-4-Hydroxy-3-Methyl-But-2-Enyl Pyrophosphat
authors A.Kumar, L.Mori, G.De Libero
compound source
Molecule: Butyrophilin Subfamily 3 Member A1
Chain: A
Fragment: Unp Residues 28-143
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Bt3.2, Btf3, Btf4, Btf5, Btn3a1, Btn3a2, Butyrophilin Subfamily 3 Member A1;
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet22b(+)-His6
symmetry Space Group: P 21 21 21
R_factor 0.192 R_Free 0.256
length a length b length c angle alpha angle beta angle gamma
35.766 107.744 32.716 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.91 Å
ligand H6P enzyme
Primary referenceButyrophilin 3A1 binds phosphorylated antigens and stimulates human gammadelta T cells., Vavassori S, Kumar A, Wan GS, Ramanjaneyulu GS, Cavallari M, El Daker S, Beddoe T, Theodossis A, Williams NK, Gostick E, Price DA, Soudamini DU, Voon KK, Olivo M, Rossjohn J, Mori L, De Libero G, Nat Immunol. 2013 Sep;14(9):908-16. doi: 10.1038/ni.2665. Epub 2013 Jul 21. PMID:23872678
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (26 Kb) [Save to disk]
  • Biological Unit Coordinates (4k55.pdb1.gz) 22 Kb
  • LPC: Ligand-Protein Contacts for 4K55
  • CSU: Contacts of Structural Units for 4K55
  • Structure Factors (140 Kb)
  • Retrieve 4K55 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4K55 from S2C, [Save to disk]
  • Re-refined 4k55 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4K55 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 4K55
  • 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 4K55, from MSDmotif at EBI
  • Fold representative 4k55 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4k55_A] [4k55]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Domain found in 4K55: [IG ] by SMART
  • Other resources with information on 4K55
  • Community annotation for 4K55 at PDBWiki (http://pdbwiki.org)

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