1R9N	Hydrolase	date	Oct 30, 2003
title	Crystal Structure Of Human Dipeptidyl Peptidase Iv In Comple Decapeptide (Tnpy) At 2.3 Ang. Resolution
authors	K.Aertgeerts, S.Ye, M.G.Tennant, B.Collins, J.Rogers, B.C.Sang, R D.R.Webb, G.S.Prasad
compound		source
Molecule: Dipeptidyl Peptidase Iv Chain: A, B, C, D Synonym: Dpp Iv, T-Cell Activation Antigen Cd26, Tp103, Ade Deaminase Complexing Protein-2, Adabp; Ec: 3.4.14.5 Engineered: 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_vector_type: Baculovirus Expression_system_plasmid: Pfastbachtb
Molecule: Neuropeptide Y Chain: E, F, G, H Engineered: Yes		Synthetic: Yes Other_details: Sequence Is The Same As In The Natural Sourc
symmetry	Space Group: P 1 21 1	R_factor 0.211 R_Free 0.251
crystal cell	length a length b length c angle alpha angle beta angle gamma 122.606 122.701 145.405 90.00 114.88 90.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	NAG	enzyme	Hydrolase E.C.3.4.14.5 BRENDA
related structures	by homologous chain: 1N1M, 1RWQ
Gene Ontology	Chain Function Process Component A, D, C, B virus receptor activity chemorepellent activity
Primary reference	Crystal structure of human dipeptidyl peptidase IV in complex with a decapeptide reveals details on substrate specificity and tetrahedral intermediate formation., Aertgeerts K, Ye S, Tennant MG, Kraus ML, Rogers J, Sang BC, Skene RJ, Webb DR, Prasad GS, Protein Sci 2004 Feb;13(2):412-21. Epub 2004 Jan 10. PMID:14718659

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (505 Kb) [Save to disk] Biological Unit Coordinates (1r9n.pdb1.gz) 254 Kb Biological Unit Coordinates (1r9n.pdb2.gz) 248 Kb Biological Unit Coordinates (1r9n.pdb3.gz) 248 Kb LPC: Ligand-Protein Contacts for 1R9N CSU: Contacts of Structural Units for 1R9N Likely Quarternary Molecular Structure file(s) for 1R9N Retrieve 1R9N in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1R9N from S2C, [Save to disk]

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Visual 3D analysis of 1R9N

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Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1R9N, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1r9n] [1r9n_H] [1r9n_E] [1r9n_A] [1r9n_F] [1r9n_C] [1r9n_G] [1r9n_B] [1r9n_D] SWISS-PROT database: [P27487] [Q9XSW6] Domain organization of [DPP4_HUMAN] [NPY_MACMU] by SWISSPFAM

Other resources with information on 1R9N

Community annotation for 1R9N at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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