2B3U	Transferase	date	Sep 21, 2005
title	Human Spermine Spermidine Acetyltransferase K26r Mutant
authors	M.C.Bewley, V.Graziano, J.S.Jiang, E.Matz, F.W.Studier, A.P.Pegg, C.S.Coleman, J.M.Flanagan, S.K.Burley, New York Sgx Research C Structural Genomics (Nysgxrc)
compound		source
Molecule: Diamine Acetyltransferase 1 Chain: A, B Synonym: Spermidinespermine N1, - Acetyltransferase 1, Ssa Putrescine Acetyltransferase, Polyamine N-Acetyltransferase Ec: 2.3.1.57 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Sat Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: B834(De3)Ril Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet13a
symmetry	Space Group: P 43	R_factor 0.210 R_Free 0.240
crystal cell	length a length b length c angle alpha angle beta angle gamma 74.300 74.300 63.300 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.85 Å
ligand	MSE, SO4	enzyme	Transferase E.C.2.3.1.57 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Structures of wild-type and mutant human spermidine/spermine N1-acetyltransferase, a potential therapeutic drug target., Bewley MC, Graziano V, Jiang J, Matz E, Studier FW, Pegg AE, Coleman CS, Flanagan JM, Proc Natl Acad Sci U S A. 2006 Feb 14;103(7):2063-8. Epub 2006 Feb 2. PMID:16455797

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (62 Kb) [Save to disk] Biological Unit Coordinates (2b3u.pdb1.gz) 57 Kb LPC: Ligand-Protein Contacts for 2B3U CSU: Contacts of Structural Units for 2B3U Likely Quarternary Molecular Structure file(s) for 2B3U Structure Factors (457 Kb) Retrieve 2B3U in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2B3U from S2C, [Save to disk] Re-refined 2b3u structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2B3U 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 2B3U

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2B3U, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2b3u_A] [2b3u_B] [2b3u] SWISS-PROT database: [P21673] Domain organization of [SAT1_HUMAN] by SWISSPFAM

Other resources with information on 2B3U

Community annotation for 2B3U at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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