1XO1	Hydrolase	date	Nov 19, 1998
title	T5 5'-Exonuclease Mutant K83a
authors	T.A.Ceska, D.Suck, J.R.Sayers
compound		source
Molecule: 5'-Exonuclease Chain: A, B Synonym: 5'-Nuclease Ec: 3.1.11.3 Engineered: Yes Mutation: Yes		Organism_scientific: Enterobacteria Phage T5 Organism_taxid: 10726 Strain: M72 Gene: D15 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: M72 Expression_system_vector_type: Plasmid Expression_system_gene: D15
symmetry	Space Group: P 21 21 21	R_factor 0.226 R_Free 0.309
crystal cell	length a length b length c angle alpha angle beta angle gamma 66.890 76.810 120.100 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand		enzyme	Hydrolase E.C.3.1.11.3 BRENDA
related structures	by homologous chain: 1EXN
Gene Ontology	Chain Function Process Component A, B nuclease activity endonuclease activity exonuclease activity 5'-3' exonuclease activity 5'-3' exodeoxyribonuclease a...
Primary reference	Mutagenesis of conserved lysine residues in bacteriophage T5 5'-3' exonuclease suggests separate mechanisms of endo-and exonucleolytic cleavage., Garforth SJ, Ceska TA, Suck D, Sayers JR, Proc Natl Acad Sci U S A 1999 Jan 5;96(1):38-43. PMID:9874768

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (88 Kb) [Save to disk] Biological Unit Coordinates (1xo1.pdb1.gz) 43 Kb Biological Unit Coordinates (1xo1.pdb2.gz) 44 Kb CSU: Contacts of Structural Units for 1XO1 Likely Quarternary Molecular Structure file(s) for 1XO1 Retrieve 1XO1 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1XO1 from S2C, [Save to disk]

View 1XO1 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 1XO1

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1XO1, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1xo1a1, region A:186-290 [Jmol] [rasmolscript] [script source]     - Domain d1xo1a2, region A:19-185 [Jmol] [rasmolscript] [script source]     - Domain d1xo1b1, region B:186-290 [Jmol] [rasmolscript] [script source]     - Domain d1xo1b2, region B:19-185 [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: [1xo1] [1xo1_A] [1xo1_B] SWISS-PROT database: [P06229] Domain organization of [EXO5_BPT5] by SWISSPFAM Domains found in 1XO1: [53EXOc] [HhH2 ] by SMART

Other resources with information on 1XO1

Community annotation for 1XO1 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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