1LNU Sugar Binding Protein date May 03, 2002
title Crystal Structure Of Class II Mhc Molecule Iab Bound To Ealp Peptide
authors X.Liu, S.Dai, F.Crawford, R.Fruge, P.Marrack, J.Kappler
compound source
Molecule: H-2 Class II Histocompatibility Antigen, A-B Alph
Chain: A, C, E, G
Synonym: Iaalpha
Engineered: Yes
Organism_scientific: Mus Musculus
Organism_common: House Mouse
Organism_taxid: 10090
Expression_system: Spodoptera Frugiperda
Expression_system_common: Fall Armyworm
Expression_system_taxid: 7108
Expression_system_cell_line: Sf9
Expression_system_vector_type: Baculovirus

Molecule: H-2 Class II Histocompatibility Antigen, A Beta C
Chain: B, D, F, H
Engineered: Yes

Organism_scientific: Mus Musculus
Organism_common: House Mouse
Organism_taxid: 10090
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_cell_line: Sf9
Expression_system_vector_type: Baculovirus
symmetry Space Group: P 1 21 1
R_factor 0.211 R_Free 0.245
length a length b length c angle alpha angle beta angle gamma
65.040 274.180 65.120 90.00 111.42 90.00
method X-Ray Diffractionresolution 2.50 Å
ligand NAG enzyme
related structures by homologous chain: 1ES0, 1R5V, 1T5X, 1U3H
A, E, C, G

F, B, H, D

Primary referenceAlternate interactions define the binding of peptides to the MHC molecule IA(b)., Liu X, Dai S, Crawford F, Fruge R, Marrack P, Kappler J, Proc Natl Acad Sci U S A 2002 Jun 25;99(13):8820-5. PMID:12084926
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (267 Kb) [Save to disk]
  • Biological Unit Coordinates (1lnu.pdb1.gz) 68 Kb
  • Biological Unit Coordinates (1lnu.pdb2.gz) 67 Kb
  • Biological Unit Coordinates (1lnu.pdb3.gz) 69 Kb
  • Biological Unit Coordinates (1lnu.pdb4.gz) 69 Kb
  • LPC: Ligand-Protein Contacts for 1LNU
  • CSU: Contacts of Structural Units for 1LNU
  • Likely Quarternary Molecular Structure file(s) for 1LNU
  • Structure Factors (397 Kb)
  • Retrieve 1LNU in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1LNU from S2C, [Save to disk]
  • Re-refined 1lnu structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1LNU 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 1LNU
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1LNU, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1lnua2, region A:1-83 [Jmol] [rasmolscript] [script source]
        - Domain d1lnua1, region A:84-182 [Jmol] [rasmolscript] [script source]
        - Domain d1lnub2, region B:1-120 [Jmol] [rasmolscript] [script source]
        - Domain d1lnub1, region B:121-217 [Jmol] [rasmolscript] [script source]
        - Domain d1lnuc2, region C:1-83 [Jmol] [rasmolscript] [script source]
        - Domain d1lnuc1, region C:84-182 [Jmol] [rasmolscript] [script source]
        - Domain d1lnud2, region D:1-120 [Jmol] [rasmolscript] [script source]
        - Domain d1lnud1, region D:121-217 [Jmol] [rasmolscript] [script source]
        - Domain d1lnue2, region E:1-83 [Jmol] [rasmolscript] [script source]
        - Domain d1lnue1, region E:84-182 [Jmol] [rasmolscript] [script source]
        - Domain d1lnuf2, region F:1-120 [Jmol] [rasmolscript] [script source]
        - Domain d1lnuf1, region F:121-217 [Jmol] [rasmolscript] [script source]
        - Domain d1lnug2, region G:1-83 [Jmol] [rasmolscript] [script source]
        - Domain d1lnug1, region G:84-182 [Jmol] [rasmolscript] [script source]
        - Domain d1lnuh2, region H:1-120 [Jmol] [rasmolscript] [script source]
        - Domain d1lnuh1, region H:121-217 [Jmol] [rasmolscript] [script source]
  • Fold representative 1lnu 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: [1lnu_F] [1lnu_B] [1lnu_A] [1lnu] [1lnu_C] [1lnu_D] [1lnu_E] [1lnu_H] [1lnu_G]
  • SWISS-PROT database: [P14434] [P14483]
  • Domain organization of [HA2B_MOUSE] [HB2A_MOUSE] by SWISSPFAM
  • Domains found in 1LNU: [IGc1] [MHC_II_alpha] [MHC_II_beta ] by SMART
  • Other resources with information on 1LNU
  • Community annotation for 1LNU at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

  • You may enter another PDB ID code
    Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]
    OCA© by Jaime Prilusky, 1996-2014
    Bioinformatics Unit
    Weizmann Institute of Science