1NUI	Replication	date	Jan 31, 2003
title	Crystal Structure Of The Primase Fragment Of Bacteriophage T Helicase Protein
authors	M.Kato, T.Ito, G.Wagner, C.C.Richardson, T.Ellenberger
compound		source
Molecule: Dna Primasehelicase Chain: A, B Fragment: Residues 1-255 Ec: 2.7.7.- Engineered: Yes Mutation: Yes		Organism_scientific: Enterobacteria Phage T7 Organism_taxid: 10760 Gene: 4 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet17b
symmetry	Space Group: P 31 2 1	R_factor 0.235 R_Free 0.277
crystal cell	length a length b length c angle alpha angle beta angle gamma 136.459 136.460 85.445 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.90 Å
ligand	MG, ZN	enzyme	Transferase E.C.2.7.7 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Modular architecture of the bacteriophage T7 primase couples RNA primer synthesis to DNA synthesis., Kato M, Ito T, Wagner G, Richardson CC, Ellenberger T, Mol Cell 2003 May;11(5):1349-60. PMID:12769857

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (82 Kb) [Save to disk] Biological Unit Coordinates (1nui.pdb1.gz) 39 Kb Biological Unit Coordinates (1nui.pdb2.gz) 39 Kb LPC: Ligand-Protein Contacts for 1NUI CSU: Contacts of Structural Units for 1NUI Likely Quarternary Molecular Structure file(s) for 1NUI Structure Factors (227 Kb) Retrieve 1NUI in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NUI from S2C, [Save to disk] Re-refined 1nui structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1NUI 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 1NUI

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1NUI, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1nuia2, region A:10-63 [Jmol] [rasmolscript] [script source]     - Domain d1nuia1, region A:64-255 [Jmol] [rasmolscript] [script source]     - Domain d1nuib2, region B:10-63 [Jmol] [rasmolscript] [script source]     - Domain d1nuib1, region B:64-255 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1nui] [1nui_A] [1nui_B] SWISS-PROT database: [P03692] Domain organization of [PRIM_BPT7] by SWISSPFAM Domains found in 1NUI: [Prim_Zn_Ribbon] [TOPRIM ] by SMART

Other resources with information on 1NUI

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

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