1PKK	Hydrolase	date	Jun 05, 2003
title	Structural Basis For Recognition And Catalysis By The Bifunc Dctp Deaminase And Dutpase From Methanococcus Jannaschii
authors	J.L.Huffman, H.Li, R.H.White, J.A.Tainer
compound		source
Molecule: Bifunctional Deaminasediphosphatase Chain: A, B Synonym: Mjdcd-Dut, Dcddut Ec: 3.5.4.13, 3.6.1.23 Engineered: Yes		Organism_scientific: Methanocaldococcus Jannaschii Organism_taxid: 2190 Gene: Mj0430 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 (De3) Ril Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet17b
symmetry	Space Group: P 21 3	R_factor 0.197 R_Free 0.219
crystal cell	length a length b length c angle alpha angle beta angle gamma 110.576 110.576 110.576 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.77 Å
ligand	DCP, EDO	enzyme	Hydrolase E.C.3.5.4.13 BRENDA
related structures	by homologous chain: 1OGH, 1PKH
Gene Ontology	Chain Function Process Component A, B
Primary reference	Structural basis for recognition and catalysis by the bifunctional dCTP deaminase and dUTPase from Methanococcus jannaschii., Huffman JL, Li H, White RH, Tainer JA, J Mol Biol 2003 Aug 22;331(4):885-96. PMID:12909016

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (72 Kb) [Save to disk] Biological Unit Coordinates (1pkk.pdb1.gz) 195 Kb Biological Unit Coordinates (1pkk.pdb2.gz) 99 Kb LPC: Ligand-Protein Contacts for 1PKK CSU: Contacts of Structural Units for 1PKK Likely Quarternary Molecular Structure file(s) for 1PKK Retrieve 1PKK in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1PKK from S2C, [Save to disk]

View 1PKK 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 1PKK

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1PKK, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1pkka_, region A [Jmol] [rasmolscript] [script source]     - Domain d1pkkb_, 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: [1pkk_A] [1pkk] [1pkk_B] SWISS-PROT database: [Q57872] Domain organization of [DCD_METJA] by SWISSPFAM

Other resources with information on 1PKK

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

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