3M18	Immune System	date	Mar 04, 2010
title	Crystal Structure Of Variable Lymphocyte Receptor Vlra.R2.1 With Hen Egg Lysozyme
authors	L.Deng, C.A.Velikovsky, R.A.Mariuzza
compound		source
Molecule: Variable Lymphocyte Receptor A Diversity Region Chain: A Fragment: Ectodomain Engineered: Yes		Organism_scientific: Petromyzon Marinus Organism_common: Marine Lamprey Organism_taxid: 7757 Gene: Vlra Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21-Codonplus(De3) Expression_system_vector_type: Plasmid Expression_system_vector: Pt7-7
Molecule: Lysozyme C Chain: B Synonym: 1,4-Beta-N-Acetylmuramidase C, Allergen Gal D Iv Ec: 3.2.1.17		Organism_scientific: Gallus Gallus Organism_common: Bantam,Chickens Organism_taxid: 9031
symmetry	Space Group: P 1 21 1	R_factor 0.181 R_Free 0.240
crystal cell	length a length b length c angle alpha angle beta angle gamma 46.794 68.116 59.751 90.00 110.94 90.00
method	X-Ray Diffraction	resolution	1.95 Å
ligand	PO4	enzyme	Hydrolase E.C.3.2.1.17 BRENDA
Gene Ontology	Chain Function Process Component B
Primary reference	A structural basis for antigen recognition by the T cell-like lymphocytes of sea lamprey., Deng L, Velikovsky CA, Xu G, Iyer LM, Tasumi S, Kerzic MC, Flajnik MF, Aravind L, Pancer Z, Mariuzza RA, Proc Natl Acad Sci U S A. 2010 Jul 8. PMID:20616002

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (66 Kb) [Save to disk] Biological Unit Coordinates (3m18.pdb1.gz) 61 Kb LPC: Ligand-Protein Contacts for 3M18 CSU: Contacts of Structural Units for 3M18 Structure Factors (228 Kb) Retrieve 3M18 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3M18 from S2C, [Save to disk] Re-refined 3m18 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3M18 in 3D

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Visual 3D analysis of 3M18

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Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 3M18, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3m18_A] [3m18_B] [3m18] SWISS-PROT database: Domain organization of by SWISSPFAM Domains found in 3M18: [LRRNT] [LRR_TYP] [LYZ1 ] by SMART

Other resources with information on 3M18

Community annotation for 3M18 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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