1NA6	Hydrolase	date	Nov 26, 2002
title	Crystal Structure Of Restriction Endonuclease Ecorii Mutant
authors	X.E.Zhou, Y.Wang, M.Reuter, M.Mucke, D.H.Kruger, E.J.Meehan, L.Che
compound		source
Molecule: Restriction Endonuclease Ecorii Chain: A, B Synonym: Ecorii; Type II Restriction Enzyme Ecorii; Endonuc Ecorii; R.Ecorii; Ec: 3.1.21.4 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Ecorii Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Jm109 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pqe30
symmetry	Space Group: P 1 21 1	R_factor 0.230 R_Free 0.284
crystal cell	length a length b length c angle alpha angle beta angle gamma 58.746 92.360 88.308 90.00 108.08 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand		enzyme	Hydrolase E.C.3.1.21.4 BRENDA
Gene Ontology	Chain Function Process Component A, B nuclease activity endonuclease activity
Primary reference	Crystal structure of type IIE restriction endonuclease EcoRII reveals an autoinhibition mechanism by a novel effector-binding fold., Zhou XE, Wang Y, Reuter M, Mucke M, Kruger DH, Meehan EJ, Chen L, J Mol Biol 2004 Jan 2;335(1):307-19. PMID:14659759

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (130 Kb) [Save to disk] Biological Unit Coordinates (1na6.pdb1.gz) 125 Kb CSU: Contacts of Structural Units for 1NA6 Likely Quarternary Molecular Structure file(s) for 1NA6 Retrieve 1NA6 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NA6 from S2C, [Save to disk]

View 1NA6 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 1NA6

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1NA6, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1na6a2, region A:179-398 [Jmol] [rasmolscript] [script source]     - Domain d1na6a1, region A:4-178 [Jmol] [rasmolscript] [script source]     - Domain d1na6b2, region B:183-402 [Jmol] [rasmolscript] [script source]     - Domain d1na6b1, region B:4-178 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1na6_B] [1na6_A] [1na6] SWISS-PROT database: [P14633] Domain organization of [T2E2_ECOLX] by SWISSPFAM

Other resources with information on 1NA6

Community annotation for 1NA6 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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