2DF3	Cell Adhesion	date	Feb 23, 2006
title	The Structure Of Siglec-7 In Complex With Alpha(2,3)Alpha(2 Disialyl Lactotetraosyl 2-(Trimethylsilyl)Ethyl
authors	H.Attrill
compound		source
Molecule: Sialic Acid-Binding Ig-Like Lectin 7 Chain: A Fragment: Ig-Like V-Type Synonym: Siglec-7,Adhesion Inhibitory Receptor Molecule 1,A Cdw328,D-Siglec,Qa79 Membrane Protein,P75; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Siglec7, Airm1 Expression_system: Cricetulus Griseus Expression_system_common: Chinese Hamster Expression_system_taxid: 10029 Expression_system_cell_line: Cho Lec1 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pdef
symmetry	Space Group: P 41 21 2	R_factor 0.195 R_Free 0.237
crystal cell	length a length b length c angle alpha angle beta angle gamma 53.070 53.070 92.880 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	CYS, GAL, NAG, SIA	enzyme
Primary reference	The structure of Siglec-7 in complex with sialosides: leads for rational structure-based inhibitor design., Attrill H, Takazawa H, Witt S, Kelm S, Isecke R, Brossmer R, Ando T, Ishida H, Kiso M, Crocker PR, van Aalten DM, Biochem J. 2006 Apr 20;. PMID:16623661

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (28 Kb) [Save to disk] Biological Unit Coordinates (2df3.pdb1.gz) 23 Kb LPC: Ligand-Protein Contacts for 2DF3 CSU: Contacts of Structural Units for 2DF3 Likely Quarternary Molecular Structure file(s) for 2DF3 Structure Factors (86 Kb) Retrieve 2DF3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2DF3 from S2C, [Save to disk] Re-refined 2df3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2DF3 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 2DF3

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 2DF3, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2df3] [2df3_A] SWISS-PROT database: [Q9Y286] Domain organization of [SIGL7_HUMAN] by SWISSPFAM Domain found in 2DF3: [IG ] by SMART

Other resources with information on 2DF3

Community annotation for 2DF3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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