1N3T	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: F, G, H, I, J, K, L, M, N, O, A, B, C, D, E 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 0.185 R_Free 0.228
crystal cell	length a length b length c angle alpha angle beta angle gamma 223.140 317.810 132.150 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.20 Å
ligand	GTP	enzyme	Hydrolase E.C.3.5.4.16 BRENDA
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] (542 Kb) [Save to disk] Biological Unit Coordinates (1n3t.pdb1.gz) 352 Kb Biological Unit Coordinates (1n3t.pdb2.gz) 353 Kb LPC: Ligand-Protein Contacts for 1N3T CSU: Contacts of Structural Units for 1N3T Likely Quarternary Molecular Structure file(s) for 1N3T Retrieve 1N3T in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1N3T from S2C, [Save to disk]

View 1N3T 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 1N3T

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1N3T, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1n3ta_, region A [Jmol] [rasmolscript] [script source]     - Domain d1n3tb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1n3tc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1n3td_, region D [Jmol] [rasmolscript] [script source]     - Domain d1n3te_, region E [Jmol] [rasmolscript] [script source]     - Domain d1n3tf_, region F [Jmol] [rasmolscript] [script source]     - Domain d1n3tg_, region G [Jmol] [rasmolscript] [script source]     - Domain d1n3th_, region H [Jmol] [rasmolscript] [script source]     - Domain d1n3ti_, region I [Jmol] [rasmolscript] [script source]     - Domain d1n3tj_, region J [Jmol] [rasmolscript] [script source]     - Domain d1n3tk_, region K [Jmol] [rasmolscript] [script source]     - Domain d1n3tl_, region L [Jmol] [rasmolscript] [script source]     - Domain d1n3tm_, region M [Jmol] [rasmolscript] [script source]     - Domain d1n3tn_, region N [Jmol] [rasmolscript] [script source]     - Domain d1n3to_, 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: [1n3t_A] [1n3t_L] [1n3t_I] [1n3t_H] [1n3t] [1n3t_F] [1n3t_B] [1n3t_G] [1n3t_K] [1n3t_E] [1n3t_M] [1n3t_N] [1n3t_O] [1n3t_C] [1n3t_D] [1n3t_J] SWISS-PROT database: [P0A6T5] Domain organization of [GCH1_ECOLI] by SWISSPFAM

Other resources with information on 1N3T

Community annotation for 1N3T at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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