2O3B	Hydrolase Hydrolase Inhibitor	date	Dec 01, 2006
title	Crystal Structure Complex Of Nuclease A (Nuca) With Intra-Ce Inhibitor Nuia
authors	M.Ghosh, G.Meiss, A.M.Pingoud, R.E.London, L.C.Pedersen
compound		source
Molecule: Nuclease Chain: A Synonym: Endonuclease Ec: 3.1.30.- Engineered: Yes Mutation: Yes		Organism_scientific: Nostoc Sp. Organism_taxid: 103690 Strain: Pcc 7120 Gene: Nuca Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3)Star Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet15b
Molecule: Sugar-Non-Specific Nuclease Inhibitor Chain: B Engineered: Yes		Organism_scientific: Nostoc Sp. Organism_taxid: 103690 Strain: Pcc 7120 Gene: Nuia Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3)Star Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet15b
symmetry	Space Group: P 43 21 2	R_factor 0.201 R_Free 0.241
crystal cell	length a length b length c angle alpha angle beta angle gamma 87.225 87.225 138.977 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	MES, MG, NI	enzyme	Hydrolase E.C.3.1.30 BRENDA
Gene Ontology	Chain Function Process Component A nuclease activity endonuclease activity
Primary reference	The nuclease a-inhibitor complex is characterized by a novel metal ion bridge., Ghosh M, Meiss G, Pingoud AM, London RE, Pedersen LC, J Biol Chem. 2007 Feb 23;282(8):5682-90. Epub 2006 Nov 30. PMID:17138564

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (70 Kb) [Save to disk] Biological Unit Coordinates (2o3b.pdb1.gz) 64 Kb LPC: Ligand-Protein Contacts for 2O3B CSU: Contacts of Structural Units for 2O3B Likely Quarternary Molecular Structure file(s) for 2O3B Structure Factors (326 Kb) Retrieve 2O3B in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2O3B from S2C, [Save to disk] Re-refined 2o3b structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2O3B 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 2O3B

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 2O3B, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2o3b_B] [2o3b_A] [2o3b] SWISS-PROT database: [P38446] [Q7A260] Domain organization of [NUCA_ANASP] [Q7A260_ANASP] by SWISSPFAM Domains found in 2O3B: [Endonuclease_NS] [NUC ] by SMART

Other resources with information on 2O3B

Community annotation for 2O3B at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

You may enter another PDB ID code

Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]

---

OCA© by Jaime Prilusky, 1996-2014,2022 Bioinformatics Unit Weizmann Institute of Science

---