2QTB	Hydrolase	date	Aug 01, 2007
title	Human Dipeptidyl Peptidase Ivcd26 In Complex With A 4-Aryl Cyclohexylalanine Inhibitor
authors	G.Scapin
compound		source
Molecule: Dipeptidyl Peptidase 4 Chain: A, B Synonym: Dipeptidyl Peptidase Iv, Dpp Iv, T-Cell Activation Cd26, Tp103, Adenosine Deaminase Complexing Protein 2, Adab Ec: 3.4.14.5 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Dpp4, Adcp2, Cd26 Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108 Expression_system_strain: Hi5 Expression_system_vector_type: Baculovirus Expression_system_plasmid: Pbluebac4.5
symmetry	Space Group: P 21 21 21	R_factor 0.187 R_Free 0.228
crystal cell	length a length b length c angle alpha angle beta angle gamma 117.863 125.629 136.806 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.25 Å
ligand	474, NA, NAG, NDG BindingDB	enzyme	Hydrolase E.C.3.4.14.5 BRENDA
Gene Ontology	Chain Function Process Component A, B virus receptor activity chemorepellent activity
Primary reference	4-arylcyclohexylalanine analogs as potent, selective, and orally active inhibitors of dipeptidyl peptidase IV., Kaelin DE, Smenton AL, Eiermann GJ, He H, Leiting B, Lyons KA, Patel RA, Patel SB, Petrov A, Scapin G, Wu JK, Thornberry NA, Weber AE, Duffy JL, Bioorg Med Chem Lett. 2007 Nov 1;17(21):5806-11. Epub 2007 Aug 26. PMID:17851076

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (268 Kb) [Save to disk] Biological Unit Coordinates (2qtb.pdb1.gz) 260 Kb LPC: Ligand-Protein Contacts for 2QTB CSU: Contacts of Structural Units for 2QTB Likely Quarternary Molecular Structure file(s) for 2QTB Structure Factors (833 Kb) Retrieve 2QTB in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2QTB from S2C, [Save to disk] Re-refined 2qtb structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2QTB 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 2QTB

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 2QTB, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2qtb_B] [2qtb_A] [2qtb] SWISS-PROT database: [P27487] Domain organization of [DPP4_HUMAN] by SWISSPFAM

Other resources with information on 2QTB

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

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