2ANT	Serpin	date	Jan 28, 1997
title	The 2.6 A Structure Of Antithrombin Indicates A Conformation At The Heparin Binding Site
authors	R.Skinner, J.P.Abrahams, J.C.Whisstock, A.M.Lesk, R.W.Carrell, M.R.Wardell
compound		source
Molecule: Antithrombin Chain: L, I Other_details: Antithrombin Crystallised As A Dimer Between Molecule And One Active Molecule		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Tissue: Plasma
symmetry	Space Group: P 1 21 1	R_factor 0.217 R_Free 0.290
crystal cell	length a length b length c angle alpha angle beta angle gamma 61.410 98.310 90.410 90.00 103.32 90.00
method	X-Ray Diffraction	resolution	2.60 Å
ligand	NAA	enzyme
related structures	by homologous chain: 1E05, 1NQ9
Gene Ontology	Chain Function Process Component I, L
Primary reference	The 2.6 A structure of antithrombin indicates a conformational change at the heparin binding site., Skinner R, Abrahams JP, Whisstock JC, Lesk AM, Carrell RW, Wardell MR, J Mol Biol 1997 Feb 28;266(3):601-9. PMID:9067613

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (139 Kb) [Save to disk] Biological Unit Coordinates (2ant.pdb1.gz) 66 Kb Biological Unit Coordinates (2ant.pdb2.gz) 70 Kb LPC: Ligand-Protein Contacts for 2ANT CSU: Contacts of Structural Units for 2ANT Likely Quarternary Molecular Structure file(s) for 2ANT Structure Factors (186 Kb) Retrieve 2ANT in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2ANT from S2C, [Save to disk] Re-refined 2ant structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2ANT 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 2ANT

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 2ANT, from MSDmotif at EBI Genome occurence of 2ANT's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d2anti_, region I [Jmol] [rasmolscript] [script source]     - Domain d2antl_, region L [Jmol] [rasmolscript] [script source] 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: [2ant_L] [2ant_I] [2ant] SWISS-PROT database: [P01008] Domain organization of [ANT3_HUMAN] by SWISSPFAM Domain found in 2ANT: [SERPIN ] by SMART

Other resources with information on 2ANT

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

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