2B2C	Transferase	date	Sep 19, 2005
title	Cloning, Expression, Characterisation And Three- Dimensional Determination Of The Caenorhabditis Elegans Spermidine Synt
authors	V.T.Dufe, K.Luersen, M.L.Eschbach, N.Haider, T.Karlberg, R.D.Walt Karadaghi
compound		source
Molecule: Spermidine Synthase Chain: A, B Ec: 2.5.1.16 Engineered: Yes		Organism_scientific: Caenorhabditis Elegans Organism_taxid: 6239 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Ptrchisb
symmetry	Space Group: P 1 21 1	R_factor 0.219 R_Free 0.254
crystal cell	length a length b length c angle alpha angle beta angle gamma 59.990 99.230 67.850 90.00 107.20 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand		enzyme	Transferase E.C.2.5.1.16 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Cloning, expression, characterisation and three-dimensional structure determination of Caenorhabditis elegans spermidine synthase., Dufe VT, Luersen K, Eschbach ML, Haider N, Karlberg T, Walter RD, Al-Karadaghi S, FEBS Lett 2005 Nov 7;579(27):6037-43. Epub 2005 Oct 5. PMID:16226262

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (93 Kb) [Save to disk] Biological Unit Coordinates (2b2c.pdb1.gz) 88 Kb CSU: Contacts of Structural Units for 2B2C Likely Quarternary Molecular Structure file(s) for 2B2C Structure Factors (221 Kb) Retrieve 2B2C in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2B2C from S2C, [Save to disk] Re-refined 2b2c structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2B2C 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 2B2C

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 2B2C, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2b2c] [2b2c_A] [2b2c_B] SWISS-PROT database: [Q9U2F0] Domain organization of [Q9U2F0_CAEEL] by SWISSPFAM

Other resources with information on 2B2C

Community annotation for 2B2C at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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