1N3R	Hydrolase	date	Oct 29, 2002
title	Biosynthesis Of Pteridins. Reaction Mechanism Of Gtp Cyclohy
authors	J.Rebelo, G.Auerbach, G.Bader, A.Bracher, H.Nar, C.Hoesl, N.Schram J.Kaiser, A.Bacher, R.Huber, M.Fischer
compound		source
Molecule: Gtp Cyclohydrolase I Chain: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O Ec: 3.5.4.16 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pnc0
symmetry	Space Group: C 2 2 21	R_factor 0.218 R_Free 0.272
crystal cell	length a length b length c angle alpha angle beta angle gamma 224.466 313.258 130.181 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand	GTP	enzyme	Hydrolase E.C.3.5.4.16 BRENDA
related structures	by homologous chain: 1A9C, 1FBX
Gene Ontology	Chain Function Process Component F, A, O, J, N, K, E, B, H, M, C, D, I, G, L
Primary reference	Biosynthesis of pteridines. Reaction mechanism of GTP cyclohydrolase I., Rebelo J, Auerbach G, Bader G, Bracher A, Nar H, Hosl C, Schramek N, Kaiser J, Bacher A, Huber R, Fischer M, J Mol Biol 2003 Feb 14;326(2):503-16. PMID:12559918

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (541 Kb) [Save to disk] Biological Unit Coordinates (1n3r.pdb1.gz) 179 Kb Biological Unit Coordinates (1n3r.pdb2.gz) 180 Kb Biological Unit Coordinates (1n3r.pdb3.gz) 179 Kb Biological Unit Coordinates (1n3r.pdb4.gz) 351 Kb Biological Unit Coordinates (1n3r.pdb5.gz) 351 Kb LPC: Ligand-Protein Contacts for 1N3R CSU: Contacts of Structural Units for 1N3R Likely Quarternary Molecular Structure file(s) for 1N3R Retrieve 1N3R in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1N3R from S2C, [Save to disk]

View 1N3R 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 1N3R

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1N3R, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1n3ra_, region A [Jmol] [rasmolscript] [script source]     - Domain d1n3rb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1n3rc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1n3rd_, region D [Jmol] [rasmolscript] [script source]     - Domain d1n3re_, region E [Jmol] [rasmolscript] [script source]     - Domain d1n3rf_, region F [Jmol] [rasmolscript] [script source]     - Domain d1n3rg_, region G [Jmol] [rasmolscript] [script source]     - Domain d1n3rh_, region H [Jmol] [rasmolscript] [script source]     - Domain d1n3ri_, region I [Jmol] [rasmolscript] [script source]     - Domain d1n3rj_, region J [Jmol] [rasmolscript] [script source]     - Domain d1n3rk_, region K [Jmol] [rasmolscript] [script source]     - Domain d1n3rl_, region L [Jmol] [rasmolscript] [script source]     - Domain d1n3rm_, region M [Jmol] [rasmolscript] [script source]     - Domain d1n3rn_, region N [Jmol] [rasmolscript] [script source]     - Domain d1n3ro_, region O [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1n3r_E] [1n3r_O] [1n3r_L] [1n3r] [1n3r_K] [1n3r_H] [1n3r_B] [1n3r_A] [1n3r_J] [1n3r_F] [1n3r_D] [1n3r_M] [1n3r_C] [1n3r_I] [1n3r_G] [1n3r_N] SWISS-PROT database: [P0A6T5] Domain organization of [GCH1_ECOLI] by SWISSPFAM

Other resources with information on 1N3R

Community annotation for 1N3R at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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