1S94	Endocytosis Exocytosis	date	Feb 03, 2004
title	Crystal Structure Of The Habc Domain Of Neuronal Syntaxin Fr Squid Loligo Pealei
authors	A.Bracher, W.Weissenhorn
compound		source
Molecule: S-Syntaxin Chain: A, B Fragment: Habc Domain Engineered: Yes Mutation: Yes		Organism_scientific: Loligo Pealei Organism_taxid: 6621 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Pubs Expression_system_vector_type: Plasmid Expression_system_plasmid: Pqe30
symmetry	Space Group: P 43 21 2	R_factor 0.309 R_Free 0.375
crystal cell	length a length b length c angle alpha angle beta angle gamma 73.056 73.056 224.434 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.34 Å
note	1S94 is a representative structure
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of the Habc domain of neuronal syntaxin from the squid Loligo pealei reveals conformational plasticity at its C-terminus., Bracher A, Weissenhorn W, BMC Struct Biol 2004 Mar 15;4(1):6. PMID:15113421

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (39 Kb) [Save to disk] Biological Unit Coordinates (1s94.pdb1.gz) 16 Kb Biological Unit Coordinates (1s94.pdb2.gz) 17 Kb CSU: Contacts of Structural Units for 1S94 Likely Quarternary Molecular Structure file(s) for 1S94 Structure Factors (67 Kb) Retrieve 1S94 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1S94 from S2C, [Save to disk] Re-refined 1s94 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1S94 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 1S94

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 1S94, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1s94a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1s94b_, region B [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1s94] [1s94_A] [1s94_B] SWISS-PROT database: [O46345] Domain organization of [O46345_LOLPE] by SWISSPFAM Domain found in 1S94: [SynN ] by SMART

Other resources with information on 1S94

Community annotation for 1S94 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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