1SNG	Hydrolase Inhibitor	date	Mar 10, 2004
title	Structure Of A Thermophilic Serpin In The Native State
authors	K.F.Fulton, A.M.Buckle, L.D.Cabrita, J.A.Irving, R.E.Butcher, I.S S.Reeve, A.M.Lesk, S.P.Bottomley, J.Rossjohn, J.C.Whisstock
compound		source
Molecule: Cog4826: Serine Protease Inhibitor Chain: A Engineered: Yes		Organism_scientific: Thermobifida Fusca Organism_taxid: 2021 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Sg13009(Prep4) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pqe30
symmetry	Space Group: P 21 21 21	R_factor 0.186 R_Free 0.223
crystal cell	length a length b length c angle alpha angle beta angle gamma 45.354 81.171 106.625 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.76 Å
ligand	CAF, SO4	enzyme
related structures	by homologous chain: 1MTP
Gene Ontology	Chain Function Process Component A
Primary reference	The high resolution crystal structure of a native thermostable serpin reveals the complex mechanism underpinning the stressed to relaxed transition., Fulton KF, Buckle AM, Cabrita LD, Irving JA, Butcher RE, Smith I, Reeve S, Lesk AM, Bottomley SP, Rossjohn J, Whisstock JC, J Biol Chem 2005 Mar 4;280(9):8435-42. Epub 2004 Dec 7. PMID:15590653

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (69 Kb) [Save to disk] Biological Unit Coordinates (1sng.pdb1.gz) 64 Kb LPC: Ligand-Protein Contacts for 1SNG CSU: Contacts of Structural Units for 1SNG Likely Quarternary Molecular Structure file(s) for 1SNG Structure Factors (294 Kb) Retrieve 1SNG in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SNG from S2C, [Save to disk] Re-refined 1sng structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1SNG 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 1SNG

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 1SNG, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1snga_, region A [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1sng_A] [1sng] SWISS-PROT database: [Q47NK3] Domain organization of [Q47NK3_THEFY] by SWISSPFAM Domain found in 1SNG: [SERPIN ] by SMART

Other resources with information on 1SNG

Community annotation for 1SNG at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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