2B61	Transferase	date	Sep 29, 2005
title	Crystal Structure Of Homoserine Transacetylase
authors	I.A.Mirza, I.Nazi, M.Korczynska, G.D.Wright, A.M.Berghuis
compound		source
Molecule: Homoserine O-Acetyltransferase Chain: A Synonym: Homoserine O-Trans-Acetylase, Homoserine Transacet Hta; Ec: 2.3.1.31 Engineered: Yes		Organism_scientific: Haemophilus Influenzae Organism_taxid: 727 Gene: Metx, Met2 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: B834 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet28+Hom2
symmetry	Space Group: P 31 2 1	R_factor 0.163 R_Free 0.187
crystal cell	length a length b length c angle alpha angle beta angle gamma 85.264 85.264 120.263 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.65 Å
ligand	MSE	enzyme	Transferase E.C.2.3.1.31 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal Structure of Homoserine Transacetylase from Haemophilus influenzae Reveals a New Family of alpha/beta-Hydrolases(,)., Mirza IA, Nazi I, Korczynska M, Wright GD, Berghuis AM, Biochemistry 2005 Dec 6;44(48):15768-15773. PMID:16313180

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (71 Kb) [Save to disk] Biological Unit Coordinates (2b61.pdb1.gz) 130 Kb LPC: Ligand-Protein Contacts for 2B61 CSU: Contacts of Structural Units for 2B61 Likely Quarternary Molecular Structure file(s) for 2B61 Structure Factors (443 Kb) Retrieve 2B61 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2B61 from S2C, [Save to disk] Re-refined 2b61 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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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 2B61

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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 2B61, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2b61_A] [2b61] SWISS-PROT database: [P45131] Domain organization of [METX_HAEIN] by SWISSPFAM

Other resources with information on 2B61

Community annotation for 2B61 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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