1IK4	Lyase	date	May 02, 2001
title	X-Ray Structure Of Methylglyoxal Synthase From E. Coli Complexed With Phosphoglycolohydroxamic Acid
authors	G.T.Marks, T.K.Harris, M.A.Massiah, A.S.Mildvan, D.H.T.Harrison
compound		source
Molecule: Methylglyoxal Synthase Chain: A, B, C, D, E, F Synonym: Mgs Ec: 4.2.3.3 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Mgsa Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet16b
symmetry	Space Group: P 21 21 21	R_factor 0.169 R_Free 0.206
crystal cell	length a length b length c angle alpha angle beta angle gamma 53.050 129.530 178.540 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	PGH	enzyme	Lyase E.C.4.2.3.3 BRENDA
related structures	by homologous chain: 1B93, 1EGH
Gene Ontology	Chain Function Process Component F, A, D, C, E, B
Primary reference	Mechanistic implications of methylglyoxal synthase complexed with phosphoglycolohydroxamic acid as observed by X-ray crystallography and NMR spectroscopy., Marks GT, Harris TK, Massiah MA, Mildvan AS, Harrison DH, Biochemistry 2001 Jun 12;40(23):6805-18. PMID:11389594

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (155 Kb) [Save to disk] Biological Unit Coordinates (1ik4.pdb1.gz) 151 Kb LPC: Ligand-Protein Contacts for 1IK4 CSU: Contacts of Structural Units for 1IK4 Likely Quarternary Molecular Structure file(s) for 1IK4 Structure Factors (626 Kb) Retrieve 1IK4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1IK4 from S2C, [Save to disk] Re-refined 1ik4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1IK4 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 1IK4

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 1IK4, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ik4a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1ik4b_, region B [Jmol] [rasmolscript] [script source]     - Domain d1ik4c_, region C [Jmol] [rasmolscript] [script source]     - Domain d1ik4d_, region D [Jmol] [rasmolscript] [script source]     - Domain d1ik4e_, region E [Jmol] [rasmolscript] [script source]     - Domain d1ik4f_, region F [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1ik4_F] [1ik4_C] [1ik4_D] [1ik4_B] [1ik4_A] [1ik4] [1ik4_E] SWISS-PROT database: [P0A731] Domain organization of [MGSA_ECOLI] by SWISSPFAM Domain found in 1IK4: [MGS ] by SMART

Other resources with information on 1IK4

Community annotation for 1IK4 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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