1CHD	Carboxyl Methylesterase	date	Mar 09, 1995
title	Cheb Methylesterase Domain
authors	A.H.West, E.Martinez-Hackert, A.M.Stock
compound		source
Molecule: Cheb Methylesterase Chain: A Ec: 3.1.1.61 Engineered: Yes		Organism_scientific: Salmonella Typhimurium Organism_taxid: 99287 Strain: Lt2 Gene: Cheb Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Dh5alpha Expression_system_vector_type: Bacterial Expression_system_plasmid: Pcp1 (Puc12 Vector) Expression_system_gene: Cheb
symmetry	Space Group: P 32 2 1	R_factor R_Free 0.230
crystal cell	length a length b length c angle alpha angle beta angle gamma 63.380 63.380 87.010 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.75 Å
ligand		enzyme	Hydrolase E.C.3.1.1.61 BRENDA
related structures	by homologous chain: 1A2O
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal structure of the catalytic domain of the chemotaxis receptor methylesterase, CheB., West AH, Martinez-Hackert E, Stock AM, J Mol Biol 1995 Jul 7;250(2):276-90. PMID:7608974

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (36 Kb) [Save to disk] Biological Unit Coordinates (1chd.pdb1.gz) 31 Kb CSU: Contacts of Structural Units for 1CHD Likely Quarternary Molecular Structure file(s) for 1CHD Structure Factors (192 Kb) Retrieve 1CHD in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1CHD from S2C, [Save to disk] Re-refined 1chd structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1CHD 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 1CHD

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 1CHD, from MSDmotif at EBI Genome occurence of 1CHD's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1chd__, region [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: [1chd_A] [1chd] SWISS-PROT database: [P04042] Domain organization of [CHEB_SALTY] by SWISSPFAM

Other resources with information on 1CHD

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

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