1Y18	Immune System	date	Nov 17, 2004
title	Fab Fragment Of Catalytic Elimination Antibody 34e4 E(H50)D Complex With Hapten
authors	E.W.Debler, S.Ito, A.Heine, I.A.Wilson
compound		source
Molecule: Catalytic Antibody 34e4 Light Chain Chain: L, A, C, E Engineered: Yes Mutation: Yes Other_details: The Variable Domain (Residues 1-107) Is From Source And The Constant Domain (108-214) Is From A Human So		Organism_scientific: Mus Musculus, Homo Sapiens Organism_common: House Mouse, Human Organism_taxid: 10090,9606 Strain: , Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Topp2 Expression_system_vector_type: Plasmid Expression_system_plasmid: P4xh-M13
Molecule: Catalytic Antibody 34e4 Heavy Chain Chain: H, B, D, F Engineered: Yes Mutation: Yes Other_details: The Variable Domain (Residues 1-113) Is From Source And The Constant Domain (108-233) Is From A Human So		Organism_scientific: Mus Musculus, Homo Sapiens Organism_common: House Mouse, Human Organism_taxid: 10090,9606 Strain: , Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Topp2 Expression_system_vector_type: Plasmid Expression_system_plasmid: P4xh-M13
symmetry	Space Group: P 32 2 1	R_factor 0.215 R_Free 0.252
crystal cell	length a length b length c angle alpha angle beta angle gamma 163.000 163.000 151.200 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand	CL, HAN	enzyme
related structures	by homologous chain: 1F4Y, 1FL6, 1MHP
Primary reference	Structural origins of efficient proton abstraction from carbon by a catalytic antibody., Debler EW, Ito S, Seebeck FP, Heine A, Hilvert D, Wilson IA, Proc Natl Acad Sci U S A 2005 Apr 5;102(14):4984-9. Epub 2005 Mar 23. PMID:15788533

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (278 Kb) [Save to disk] Biological Unit Coordinates (1y18.pdb1.gz) 73 Kb Biological Unit Coordinates (1y18.pdb2.gz) 72 Kb Biological Unit Coordinates (1y18.pdb3.gz) 72 Kb Biological Unit Coordinates (1y18.pdb4.gz) 73 Kb LPC: Ligand-Protein Contacts for 1Y18 CSU: Contacts of Structural Units for 1Y18 Likely Quarternary Molecular Structure file(s) for 1Y18 Structure Factors (414 Kb) Retrieve 1Y18 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1Y18 from S2C, [Save to disk] Re-refined 1y18 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1Y18 in 3D

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Visual 3D analysis of 1Y18

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 1Y18, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1y18_F] [1y18_D] [1y18_A] [1y18_H] [1y18_E] [1y18_L] [1y18_B] [1y18_C] [1y18] SWISS-PROT database: Domain organization of by SWISSPFAM Domains found in 1Y18: [IG_like] [IGv ] by SMART

Other resources with information on 1Y18

Community annotation for 1Y18 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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