2AR0	Transcription,Transferase	date	Aug 18, 2005
title	Crystal Structure Of Type I Restriction Enzyme Ecoki M Prote 2.1.1.72) (M.Ecoki)
authors	K.R.Rajashankar, R.Kniewel, C.D.Lima, S.K.Burley, New York Sgx R Center For Structural Genomics (Nysgxrc)
compound		source
Molecule: Type I Restriction Enzyme Ecoki M Protein Chain: A, B Synonym: M.Ecoki Ec: 2.1.1.72 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Hsdm, Hsm Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: B834, De3 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet T7
symmetry	Space Group: P 41	R_factor 0.224 R_Free 0.261
crystal cell	length a length b length c angle alpha angle beta angle gamma 105.427 105.427 138.279 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand	MSE, UNX	enzyme	Transferase E.C.2.1.1.72 BRENDA
Gene Ontology	Chain Function Process Component A, B site-specific DNA-methyltran...

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (162 Kb) [Save to disk] Biological Unit Coordinates (2ar0.pdb1.gz) 80 Kb Biological Unit Coordinates (2ar0.pdb2.gz) 78 Kb LPC: Ligand-Protein Contacts for 2AR0 CSU: Contacts of Structural Units for 2AR0 Likely Quarternary Molecular Structure file(s) for 2AR0 Structure Factors (982 Kb) Retrieve 2AR0 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2AR0 from S2C, [Save to disk] Re-refined 2ar0 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2AR0 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 2AR0

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2AR0, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2ar0_A] [2ar0] [2ar0_B] SWISS-PROT database: [P08957] Domain organization of [T1MK_ECOLI] by SWISSPFAM

Other resources with information on 2AR0

Community annotation for 2AR0 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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