2RBI	Endoribonuclease	date	Nov 12, 1996
title	Structure Of Binase Mutant His 101 Asn
authors	W.A.Offen, A.L.Okorokov
compound		source
Molecule: Ribonuclease Chain: A, B Synonym: Binase, Extracellular Ribonuclease From Bacillus Intermedius; Ec: 3.1.27.- Engineered: Yes Mutation: Yes		Organism_scientific: Bacillus Intermedius Organism_taxid: 1400 Strain: 7p Gene: Phoa-Binase His101asn Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Epicurian Coli Strain Xl-1 Blue M Expression_system_vector_type: Pr Lamda Phage Promoter Unde Regulation; Expression_system_vector: Pbit36 Expression_system_plasmid: Pexbinn101 Expression_system_gene: Phoa-Binase His101asn Other_details: Binase Gene Co-Expressed As Fusion Protein W Alkaline Phosphatase To Enable Export Into Periplasmic Spac
symmetry	Space Group: P 21 21 21	R_factor 0.178 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 111.260 69.150 33.370 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand		enzyme	Hydrolase E.C.3.1.27 BRENDA
related structures	by homologous chain: 1BAN, 1YVS
Gene Ontology	Chain Function Process Component A, B
Primary reference	RNA cleavage without hydrolysis. Splitting the catalytic activities of binase with Asn101 and Thr101 mutations., Okorokov AL, Panov KI, Offen WA, Mukhortov VG, Antson AA, Karpeisky MYa, Wilkinson AJ, Dodson GG, Protein Eng 1997 Mar;10(3):273-8. PMID:9153077

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (44 Kb) [Save to disk] Biological Unit Coordinates (2rbi.pdb1.gz) 20 Kb Biological Unit Coordinates (2rbi.pdb2.gz) 20 Kb CSU: Contacts of Structural Units for 2RBI Likely Quarternary Molecular Structure file(s) for 2RBI Structure Factors (118 Kb) Retrieve 2RBI in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2RBI from S2C, [Save to disk] Re-refined 2rbi structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2RBI 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 2RBI

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 2RBI, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d2rbia_, region A [Jmol] [rasmolscript] [script source]     - Domain d2rbib_, region B [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: [2rbi] [2rbi_A] [2rbi_B] SWISS-PROT database: [P00649] Domain organization of [RN_BACIN] by SWISSPFAM

Other resources with information on 2RBI

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

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