1B66	Tetrahydrobiopterin Biosynthesis	date	Jan 20, 1999
title	6-Pyruvoyl Tetrahydropterin Synthase
authors	T.Ploom, B.Thoeny, J.Yim, S.Lee, H.Nar, W.Leimbacher, R.Huber, J.Ri G.Auerbach
compound		source
Molecule: 6-Pyruvoyl Tetrahydropterin Synthase Chain: A, B Ec: 4.6.1.10 Engineered: Yes		Organism_scientific: Rattus Rattus Organism_common: Black Rat Organism_taxid: 10117 Organ: Liver Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 3 2 1	R_factor 0.227 R_Free 0.258
crystal cell	length a length b length c angle alpha angle beta angle gamma 120.270 120.270 61.250 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	BIO, ZN	enzyme	Lyase E.C.4.6.1.10 BRENDA
note	1B66 is a representative structure
related structures	by homologous chain: 1B6Z
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystallographic and kinetic investigations on the mechanism of 6-pyruvoyl tetrahydropterin synthase., Ploom T, Thony B, Yim J, Lee S, Nar H, Leimbacher W, Richardson J, Huber R, Auerbach G, J Mol Biol 1999 Feb 26;286(3):851-60. PMID:10024455

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (54 Kb) [Save to disk] Biological Unit Coordinates (1b66.pdb1.gz) 147 Kb Biological Unit Coordinates (1b66.pdb2.gz) 74 Kb Biological Unit Coordinates (1b66.pdb3.gz) 74 Kb LPC: Ligand-Protein Contacts for 1B66 CSU: Contacts of Structural Units for 1B66 Likely Quarternary Molecular Structure file(s) for 1B66 Retrieve 1B66 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1B66 from S2C, [Save to disk]

View 1B66 in 3D

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Visual 3D analysis of 1B66

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1B66, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1b66a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1b66b_, region B [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: [1b66] [1b66_A] [1b66_B] SWISS-PROT database: [P27213] Domain organization of [PTPS_RAT] by SWISSPFAM

Other resources with information on 1B66

Community annotation for 1B66 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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