1AQD date
compound source
length a length b length c angle alpha angle beta angle gamma
method X-Ray Diffractionresolution
related structures by homologous chain: 1D5X, 1D6E
A, D, G, J

H, K, E, B

Primary referenceThe class II MHC protein HLA-DR1 in complex with an endogenous peptide: implications for the structural basis of the specificity of peptide binding., Murthy VL, Stern LJ, Structure 1997 Oct 15;5(10):1385-96. PMID:9351812
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (258 Kb) [Save to disk]
  • Biological Unit Coordinates (1aqd.pdb1.gz) 66 Kb
  • Biological Unit Coordinates (1aqd.pdb2.gz) 66 Kb
  • Biological Unit Coordinates (1aqd.pdb3.gz) 66 Kb
  • Biological Unit Coordinates (1aqd.pdb4.gz) 67 Kb
  • CSU: Contacts of Structural Units for 1AQD
  • Likely Quarternary Molecular Structure file(s) for 1AQD
  • Structure Factors (676 Kb)
  • Retrieve 1AQD in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1AQD from S2C, [Save to disk]
  • Re-refined 1aqd structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1AQD 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.
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1aqd] [1aqd_A] [1aqd_B] [1aqd_C] [1aqd_D] [1aqd_E] [1aqd_F] [1aqd_G] [1aqd_H] [1aqd_I] [1aqd_J] [1aqd_K] [1aqd_L]
  • SWISS-PROT database: [P01892] [P04229] [P01903]
  • Domains found in 1AQD: [IGc1] [MHC_II_alpha] [MHC_II_beta ] by SMART

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