1XLV	Hydrolase	date	Sep 30, 2004
title	Ethylphosphorylated Butyrylcholinesterase (Aged) Obtained By With Echothiophate
authors	F.Nachon, O.A.Asojo, G.E.O.Borgstahl, P.Masson, O.Lockridge
compound		source
Molecule: Butyrylcholinesterase Chain: A Synonym: Acylcholine Acylhydrolase; Choline Esterase II Butyrylcholine Esterase; Pseudocholinesterase; Ec: 3.1.1.8 Engineered: Yes Mutation: Yes Other_details: Aged, Ser 198 Covalently Bound To Efs		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Cricetulus Griseus Expression_system_common: Chinese Hamster Expression_system_taxid: 10029 Expression_system_cell: Baby Hampster Kidney Cells Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgs
symmetry	Space Group: I 4 2 2	R_factor 0.183 R_Free 0.247
crystal cell	length a length b length c angle alpha angle beta angle gamma 154.587 154.587 126.706 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.25 Å
ligand	CL, CSS, EFS, FUL, GOL, NAG, SO4	enzyme	Hydrolase E.C.3.1.1.8 BRENDA
related structures	by homologous chain: 1P0P, 1XLU
Gene Ontology	Chain Function Process Component A beta-amyloid binding catalytic activity acetylcholinesterase activit... carboxylesterase activity cholinesterase activity hydrolase activity enzyme binding synaptic transmission, choli... choline metabolic process cellular protein metabolic p... cocaine metabolic process extracellular region extracellular space nuclear envelope lumen endoplasmic reticulum endoplasmic reticulum lumen
Primary reference	Role of Water in Aging of Human Butyrylcholinesterase Inhibited by Echothiophate: The Crystal Structure Suggests Two Alternative Mechanisms of Aging(,)., Nachon F, Asojo OA, Borgstahl GE, Masson P, Lockridge O, Biochemistry 2005 Feb 1;44(4):1154-1162. PMID:15667209

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (103 Kb) [Save to disk] Biological Unit Coordinates (1xlv.pdb1.gz) 189 Kb Biological Unit Coordinates (1xlv.pdb2.gz) 96 Kb LPC: Ligand-Protein Contacts for 1XLV CSU: Contacts of Structural Units for 1XLV Likely Quarternary Molecular Structure file(s) for 1XLV Structure Factors (265 Kb) Retrieve 1XLV in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1XLV from S2C, [Save to disk] Re-refined 1xlv structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1XLV 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 1XLV

Cartoon representation from PDB Cartoon 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 Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 1XLV, from MSDmotif at EBI Fold representative 1xlv from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1xlv_A] SWISS-PROT database: [P06276] Domain organization of [CHLE_HUMAN] by SWISSPFAM Alignments of the sequence of 1XLV with the sequences similar proteins can be viewed for 1XLV's classification [CHLE_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [CHLE_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 1XLV

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

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