3B3Q	Cell Adhesion	date	Oct 22, 2007
title	Crystal Structure Of A Synaptic Adhesion Complex
authors	X.Chen, H.Liu, A.Shim, P.Focia, X.He
compound		source
Molecule: Nlgn1 Protein Chain: A, B Fragment: Cholinesterase-Like Domain Engineered: Yes Mutation: Yes		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Gene: Nlgn1 Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pacgp67a
Molecule: Nrxn1 Protein Chain: E, F Fragment: Lns Domain Or Lg Domain Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Nrxn1 Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pacgp67a
symmetry	Space Group: P 21 21 21	R_factor 0.242 R_Free 0.261
crystal cell	length a length b length c angle alpha angle beta angle gamma 116.590 125.400 131.860 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.40 Å
ligand	CA, NAG	enzyme
Gene Ontology	Chain Function Process Component A, B
Primary reference	Structural basis for synaptic adhesion mediated by neuroligin-neurexin interactions., Chen X, Liu H, Shim AH, Focia PJ, He X, Nat Struct Mol Biol. 2008 Jan;15(1):50-6. Epub 2007 Dec 16. PMID:18084303

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (264 Kb) [Save to disk] Biological Unit Coordinates (3b3q.pdb1.gz) 257 Kb LPC: Ligand-Protein Contacts for 3B3Q CSU: Contacts of Structural Units for 3B3Q Likely Quarternary Molecular Structure file(s) for 3B3Q Structure Factors (732 Kb) Retrieve 3B3Q in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3B3Q from S2C, [Save to disk] Re-refined 3b3q structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3B3Q 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 3B3Q

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 3D motif for 3B3Q, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3b3q] [3b3q_B] [3b3q_F] [3b3q_A] [3b3q_E] SWISS-PROT database: [Q99K10] [Q9ULB1] Belongs to the tm9 or phg1 targeting receptor (ppg1) family according to TCDB. Domain organization of [NLGN1_MOUSE] [NRX1A_HUMAN] by SWISSPFAM Domain found in 3B3Q: [LamG ] by SMART

Other resources with information on 3B3Q

Community annotation for 3B3Q at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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