1A2P	Ribonuclease	date	Jan 07, 1998
title	Barnase Wildtype Structure At 1.5 Angstroms Resolution
authors	C.Martin, V.Richard, M.Salem, R.W.Hartley, Y.Mauguen
compound		source
Molecule: Barnase Chain: A, B, C Ec: 3.1.27.- Engineered: Yes		Organism_scientific: Bacillus Amyloliquefaciens Organism_taxid: 1390 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: Pmj1002
symmetry	Space Group: P 32	R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma 58.970 58.970 81.580 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.50 Å
ligand	ZN	enzyme	Hydrolase E.C.3.1.27 BRENDA
note	1A2P is a representative structure
related structures	by homologous chain: 1GOU
Gene Ontology	Chain Function Process Component A, C, B
Primary reference	Refinement and structural analysis of barnase at 1.5 A resolution., Martin C, Richard V, Salem M, Hartley R, Mauguen Y, Acta Crystallogr D Biol Crystallogr. 1999 Feb;55(Pt 2):386-98. PMID:10089345

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (127 Kb) [Save to disk] Biological Unit Coordinates (1a2p.pdb1.gz) 42 Kb Biological Unit Coordinates (1a2p.pdb2.gz) 42 Kb Biological Unit Coordinates (1a2p.pdb3.gz) 42 Kb LPC: Ligand-Protein Contacts for 1A2P CSU: Contacts of Structural Units for 1A2P Likely Quarternary Molecular Structure file(s) for 1A2P Structure Factors (925 Kb) Retrieve 1A2P in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1A2P from S2C, [Save to disk] Re-refined 1a2p structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1A2P 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 1A2P

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1A2P 1A2PA 1A2PB 1A2PC from the CEP Server. Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1A2P, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1a2pa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1a2pb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1a2pc_, region C [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: [1a2p_B] [1a2p] [1a2p_A] [1a2p_C] SWISS-PROT database: [P00648] Domain organization of [RNBR_BACAM] by SWISSPFAM

Other resources with information on 1A2P

Community annotation for 1A2P at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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