3HXQ	Blood Clotting Blood Clotting Regulator	date	Jun 21, 2009
title	Crystal Structure Of Von Willebrand Factor (Vwf) A1 Domain I With Dna Aptamer Arc1172, An Inhibitor Of Vwf-Platelet Bind
authors	R.H.Huang, J.E.Sadler, D.H.Fremont, J.L.Diener, R.G.Schaub
compound		source
Molecule: Von Willebrand Factor Chain: A Fragment: Von Willebrand Factor (Vwf) A1 Domain (Residues 1 Synonym: Vwf, Von Willebrand Antigen 2, Von Willebrand Anti Engineered: Yes		Organism_scientific: Homo Sapiens Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Aptamer Arc1172 Chain: B Fragment: Aptamer Arc1172 Engineered: Yes		Synthetic: Yes Other_details: Arc1172 Is A Dna Oligonucleotides That Bind Target Molecules, Identified By Selection In Vitro From Lar Sequence Libraries (Termed Selex: Systematic Evolution Of L Exponential Enrichment)
symmetry	Space Group: P 21 21 2	R_factor 0.221 R_Free 0.279
crystal cell	length a length b length c angle alpha angle beta angle gamma 117.781 48.512 62.160 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.69 Å
Primary reference	A structural explanation for the antithrombotic activity of ARC1172, a DNA aptamer that binds von Willebrand factor domain A1., Huang RH, Fremont DH, Diener JL, Schaub RG, Sadler JE, Structure. 2009 Nov 11;17(11):1476-84. PMID:19913482

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (115 Kb) [Save to disk] Biological Unit Coordinates (3hxq.pdb1.gz) 110 Kb CSU: Contacts of Structural Units for 3HXQ Structure Factors (73 Kb) Retrieve 3HXQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3HXQ from S2C, [Save to disk] Re-refined 3hxq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3HXQ 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 3HXQ

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 3HXQ, from MSDmotif at EBI Fold representative 3hxq from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3hxq_A] [3hxq_B] SWISS-PROT database: [P04275] Domain organization of [VWF_HUMAN] by SWISSPFAM Domain found in 3HXQ: [VWA ] by SMART Alignments of the sequence of 3HXQ with the sequences similar proteins can be viewed for 3HXQ's classification [VWF_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [VWF_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 3HXQ

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

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