3RK2	Membrane Protein Exocytosis	date	Apr 17, 2011
title	Truncated Snare Complex
authors	D.Kuemmel, K.M.Reinisch
compound		source
Molecule: Vesicle-Associated Membrane Protein 2 Chain: A, E Fragment: Unp Residues 28-60 Synonym: Vamp-2, Synaptobrevin-2 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Vamp2, Syb2 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Syntaxin-1a Chain: B, F Fragment: Unp Residues 191-253 Synonym: Neuron-Specific Antigen Hpc-1, Synaptotagmin-Assoc Kda Protein, P35a; Engineered: Yes		Organism_scientific: Rattus Norvegicus Organism_common: Brown Rat,Rat,Rats Organism_taxid: 10116 Gene: Stx1a, Sap Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Synaptosomal-Associated Protein 25 Chain: C, G Fragment: Unp Residues 7-82 Synonym: Snap-25, Super Protein, Sup, Synaptosomal-Associat Protein; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Snap25, Snap Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Synaptosomal-Associated Protein 25 Chain: D, H Fragment: Unp Residues 141-203 Synonym: Snap-25, Super Protein, Sup, Synaptosomal-Associat Protein; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Snap25, Snap Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 1	R_factor 0.227 R_Free 0.268
crystal cell	length a length b length c angle alpha angle beta angle gamma 27.627 39.769 102.275 83.38 89.94 89.87
method	X-Ray Diffraction	resolution	2.20 Å
ligand	CA	enzyme
Gene Ontology	Chain Function Process Component A, E F, B H, C, D, G
Primary reference	Complexin cross-links prefusion SNAREs into a zigzag array., Kummel D, Krishnakumar SS, Radoff DT, Li F, Giraudo CG, Pincet F, Rothman JE, Reinisch KM, Nat Struct Mol Biol. 2011 Jul 24;18(8):927-33. doi: 10.1038/nsmb.2101. PMID:21785414

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (165 Kb) [Save to disk] Biological Unit Coordinates (3rk2.pdb1.gz) 79 Kb Biological Unit Coordinates (3rk2.pdb2.gz) 79 Kb LPC: Ligand-Protein Contacts for 3RK2 CSU: Contacts of Structural Units for 3RK2 Structure Factors (537 Kb) Retrieve 3RK2 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3RK2 from S2C, [Save to disk] Re-refined 3rk2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3RK2 in 3D

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Visual 3D analysis of 3RK2

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 3RK2, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3rk2_D] [3rk2] [3rk2_C] [3rk2_H] [3rk2_F] [3rk2_A] [3rk2_G] [3rk2_E] [3rk2_B] SWISS-PROT database: Domain organization of by SWISSPFAM Domain found in 3RK2: [t_SNARE ] by SMART

Other resources with information on 3RK2

Community annotation for 3RK2 at PDBWiki (http://pdbwiki.org)

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