2NTQ	Hydrolase	date	Nov 08, 2006
title	Crystal Structure Of Pectin Methylesterase In Complex With Hexasaccharide Vii
authors	M.Fries, K.Brocklehurst, V.E.Shevchik, R.W.Pickersgill
compound		source
Molecule: Pectinesterase A Chain: A, B Synonym: Pectin Methylesterase A, Pe A Ec: 3.1.1.11 Engineered: Yes		Organism_scientific: Erwinia Chrysanthemi Organism_taxid: 198628 Strain: 3937 Gene: Pema, Pem Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Nm522 Expression_system_vector_type: Plasmid Expression_system_vector: Pbcks Expression_system_plasmid: Pbckspema
symmetry	Space Group: P 1 21 1	R_factor 0.180 R_Free 0.211
crystal cell	length a length b length c angle alpha angle beta angle gamma 51.193 85.018 97.514 90.00 93.43 90.00
method	X-Ray Diffraction	resolution	1.80 Å
ligand	ADA, M8C	enzyme	Hydrolase E.C.3.1.1.11 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Molecular basis of the activity of the phytopathogen pectin methylesterase., Fries M, Ihrig J, Brocklehurst K, Shevchik VE, Pickersgill RW, EMBO J. 2007 Sep 5;26(17):3879-87. Epub 2007 Aug 23. PMID:17717531

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (132 Kb) [Save to disk] Biological Unit Coordinates (2ntq.pdb1.gz) 64 Kb Biological Unit Coordinates (2ntq.pdb2.gz) 65 Kb LPC: Ligand-Protein Contacts for 2NTQ CSU: Contacts of Structural Units for 2NTQ Likely Quarternary Molecular Structure file(s) for 2NTQ Structure Factors (1141 Kb) Retrieve 2NTQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2NTQ from S2C, [Save to disk] Re-refined 2ntq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2NTQ 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 2NTQ

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 2NTQ, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2ntq] [2ntq_A] [2ntq_B] SWISS-PROT database: [P0C1A9] Domain organization of [PMEA_DICD3] by SWISSPFAM

Other resources with information on 2NTQ

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

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