1FOK	Hydrolase Dna	date	Apr 18, 1997
title	Structure Of Restriction Endonuclease Foki Bound To Dna
authors	D.A.Aggarwal, J.A.Wah, L.F.Hirsch, I.Dorner, A.K.Schildkraut
compound		source
Molecule: Dna (5'- D(Tpcpgpgpaptpgpaptpapapcpgpcptpapg Ptpcpa)-3'); Chain: B Synonym: R.Foki Engineered: Yes		Organism_scientific: Planomicrobium Okeanokoites Organism_taxid: 244 Strain: Ifo12536 Atcc: 33414 Gene: Foki Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Dna (5'- D(Aptpgpapcptpapgpcpgptptpaptpcpapt Pcpcpg)-3'); Chain: C Engineered: Yes
Molecule: Protein (Foki Restriction Endonucleas) Chain: A Engineered: Yes		Organism_scientific: Planomicrobium Okeanokoites Organism_taxid: 244
symmetry	Space Group: P 1 21 1	R_factor 0.214 R_Free 0.296
crystal cell	length a length b length c angle alpha angle beta angle gamma 65.590 119.340 71.520 90.00 101.42 90.00
method	X-Ray Diffraction	resolution	2.80 Å
related structures	by homologous chain: 2FOK
Gene Ontology	Chain Function Process Component A nuclease activity endonuclease activity Type II site-specific deoxyr... hydrolase activity DNA restriction-modification... nucleic acid phosphodiester ...
Primary reference	Structure of the multimodular endonuclease FokI bound to DNA., Wah DA, Hirsch JA, Dorner LF, Schildkraut I, Aggarwal AK, Nature 1997 Jul 3;388(6637):97-100. PMID:9214510

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (116 Kb) [Save to disk] Biological Unit Coordinates (1fok.pdb1.gz) 112 Kb CSU: Contacts of Structural Units for 1FOK Likely Quarternary Molecular Structure file(s) for 1FOK Retrieve 1FOK in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1FOK from S2C, [Save to disk]

View 1FOK 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 1FOK

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 1FOK, from MSDmotif at EBI Genome occurence of 1FOK's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1foka2, region A:144-281 [Jmol] [rasmolscript] [script source]     - Domain d1foka3, region A:287-386 [Jmol] [rasmolscript] [script source]     - Domain d1foka4, region A:387-579 [Jmol] [rasmolscript] [script source]     - Domain d1foka1, region A:4-143 [Jmol] [rasmolscript] [script source] Fold representative 1fok from FSSP and Dali (Families of Structurally Similar Proteins) 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: [1fok_A] [1fok_B] [1fok_C] SWISS-PROT database: [P14870] Domain organization of [T2F1_FLAOK] by SWISSPFAM Alignments of the sequence of 1FOK with the sequences similar proteins can be viewed for 1FOK's classification [T2F1_FLAOK] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [T2F1_FLAOK] at ProtoMap. Click on the Cluster number.

Other resources with information on 1FOK

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

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