1A5Q	Hydrolase	date	Feb 17, 1998
title	P93a Variant Of Bovine Pancreatic Ribonuclease A
authors	M.A.Pearson, P.A.Karplus, R.W.Dodge, J.H.Laity, H.A.Scheraga
compound		source
Molecule: Ribonuclease A Chain: A Ec: 3.1.27.5 Engineered: Yes Mutation: Yes		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Cell_line: Bl21 Organ: Pancreas Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_plasmid: Pet22b(+)
symmetry	Space Group: P 32 2 1	R_factor 0.211 R_Free 0.273
crystal cell	length a length b length c angle alpha angle beta angle gamma 65.000 65.000 65.100 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	SO4	enzyme	Hydrolase E.C.3.1.27.5 BRENDA
related structures	by homologous chain: 1CJR, 1J82
Gene Ontology	Chain Function Process Component A ribonuclease A activity
Primary reference	Crystal structures of two mutants that have implications for the folding of bovine pancreatic ribonuclease A., Pearson MA, Karplus PA, Dodge RW, Laity JH, Scheraga HA, Protein Sci 1998 May;7(5):1255-8. PMID:9605332

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (26 Kb) [Save to disk] Biological Unit Coordinates (1a5q.pdb1.gz) 22 Kb LPC: Ligand-Protein Contacts for 1A5Q CSU: Contacts of Structural Units for 1A5Q Likely Quarternary Molecular Structure file(s) for 1A5Q Structure Factors (67 Kb) Retrieve 1A5Q in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1A5Q from S2C, [Save to disk] Re-refined 1a5q structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1A5Q 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 1A5Q

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 1A5Q, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1a5q__, region [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: [1a5q] [1a5q_A] SWISS-PROT database: [P61823] Domain organization of [RNAS1_BOVIN] by SWISSPFAM Domain found in 1A5Q: [RNAse_Pc ] by SMART

Other resources with information on 1A5Q

Community annotation for 1A5Q at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 1A5Q from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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