1BOX	Hydrolase	date	Aug 07, 1998
title	N39s Mutant Of Rnase Sa From Streptomyces Aureofaciens
authors	E.J.Hebert, A.Giletto, J.Sevcik, L.Urbanikova, K.S.Wilson, Z.Daut C.N.Pace
compound		source
Molecule: Guanyl-Specific Ribonuclease Sa Chain: A Ec: 3.1.27.3 Engineered: Yes Mutation: Yes		Organism_scientific: Streptomyces Aureofaciens Organism_taxid: 1894 Strain: Bmk Gene: U39467 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Novablue Expression_system_vector: Peh100 Expression_system_plasmid: Puc19
symmetry	Space Group: P 21 21 21	R_factor 0.181 R_Free 0.218
crystal cell	length a length b length c angle alpha angle beta angle gamma 41.490 46.650 51.650 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.60 Å
ligand		enzyme	Hydrolase E.C.3.1.27.3 BRENDA
related structures	by homologous chain: 1I70, 1I8V
Gene Ontology	Chain Function Process Component A nuclease activity endonuclease activity endoribonuclease activity ribonuclease activity
Primary reference	Contribution of a conserved asparagine to the conformational stability of ribonucleases Sa, Ba, and T1., Hebert EJ, Giletto A, Sevcik J, Urbanikova L, Wilson KS, Dauter Z, Pace CN, Biochemistry 1998 Nov 17;37(46):16192-200. PMID:9819211

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (21 Kb) [Save to disk] Biological Unit Coordinates (1box.pdb1.gz) 17 Kb CSU: Contacts of Structural Units for 1BOX Likely Quarternary Molecular Structure file(s) for 1BOX Retrieve 1BOX in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1BOX from S2C, [Save to disk]

View 1BOX 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 1BOX

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1BOX, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1boxa_, region A [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: [1box_A] [1box] SWISS-PROT database: [P05798] Domain organization of [RNSA_STRAU] by SWISSPFAM

Other resources with information on 1BOX

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

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